bluuebunny/crossref_metadata_2025 huggingface dataset:
Training Higher School Students in Rapid Prototyping Technology as a Final Stage of Their Preparation for Innovative Activities
Authors: Naumkin Nikolay I. , Grosheva Elena P. , Kondratieva Galina A. , Kupryashkin Vladimir F.
Published: September 2018

Introduction. The methodological systems of preparation for innovative engineering activity involve the involvement of students in all stages of the innovation cycle, including obtaining an intangible innovative product. However, the inability to obtain in students a material innovative product reduces the effectiveness of the preparation of these systems. The purpose of this study is to create a methodical system for preparing students for innovative research activities based on their involvement in all stages of obtaining a material innovative product using additive technologies.
Materials and Methods. For writing the article the authors used the main points of the integrated approach to learning (integration of theoretical and practical training of innovative research activities and interdisciplinary integration of various branches of science (pedagogy, mathematical modeling, 3D modeling, additive technologies, innovation).
Results. The methodical system of training students of technical higher education institution has been created and implemented, ensuring their involvement in all stages of the innovation cycle due to the use of rapid prototyping technologies. The effectiveness of technologies is confirmed by the results of the pedagogical experiment.
Discussion and Conclusions. The performed researches allowed to create a methodical system for training students of technical universities of innovative research activities based on rapid prototyping technologies. This method significantly improves the effectiveness of training. It ensures the participation of students in all stages of obtaining a material innovative product: during the study of the course, and during classroom sessions. This method was developed and tested for the implementation at National Research Ogarev Mordovia State University. It provides the practical significance of the study considered in the article. Further development of the material presented in the article can be related to the expansion of the infrastructure of the Rapid Pro university center for designing and prototyping and attracting students to manufacturing industrial products.
Teaching Foreign Language Speaking Skills Through Peer-Tutoring
Authors: Makarova Elena A.
Published: September 2018

Introduction. Teaching foreign language speaking skills to students of the same academic group having different levels of language proficiency within a restricted time period is an urgent problem for non-linguistic universities. Its solution requires an interdisciplinary approach and the integration of modern pedagogical, psychological and linguistic knowledge. The aim of the study is to prove experimentally the effectiveness of peer assisted learning organized within the regular classroom settings.
Materials and Methods. The study is concerned with a peer assisted learning strategy aimed at the development of EFL speaking skills of low-skilled students. Unlike international practice of extra-curricular peer tutoring the given strategy is used among well-acquainted students within the regular classroom settings. Peer assisted learning is based on both qualitative and quantitative methods such as data collection of both foreign and Russian teachers, linguists and psychologists, analysis and generalizations along with the communicative language teaching method, experiment and observation .
Results. As a result, the criteria for selection of peer tutors were formulated, a new structural component of peer assisted learning was developed and implemented, stages of teaching EFL speaking skills were pointed out, vocabulary and exercises appropriate to students’ knowledge and experience were selected. The researched model of peer assisted learning made it possible to integrate basic principles of the communicative method.
Discussion and Conclusions. Through peer assisted learning tutees benefit by developing and practicing communicative skills, increasing motivation. All tutors and tutees are actively engaged in work, develop responsibility and collaboration, and improve academic achievements. The effectiveness is provided by systematic peer assisted learning, coordinated work of students in pairs/threes, taking top-down and bottomup approaches to teaching speaking, proper selection of vocabulary and exercises. The obtained results contribute to the study of problems of teaching speaking and motivate further study of peer tutoring and making additional experiments.
The experiences of diplomates of a postgraduate health science education programme: a qualitative study
Authors: McInerney Patricia , Mabizela Sfiso , Moch Shirra
Published: September 2018

This article was migrated. The article was not marked as recommended. Background: An increasing number of interventions have been reported over the last ten years in the area of faculty development. We define faculty development as a series of planned activities aimed at preparing individuals for their teaching role. The planned activities include short workshop sessions of 2-3 hours in length and a 3-day introductory course in teaching and assessment. In 2014 we commenced a postgraduate diploma in health science education in a Faculty of Health Sciences in South Africa. The purpose of this study was to obtain perceptions from the first group of participants about the programme. Methods: The qualitative paradigm was chosen for this study and two focus groups were conducted with a total of ten participants. The focus groups were audio-taped and transcribed verbatim and the transcripts were analysed using Tesch's approach (Cresswell, 2014) for qualitative analysis. Results: Four themes were identified: a new language, being a student again, seeing students as adult learners and a whole new world. The first theme was characterised by feelings of anxiety and loss as they grappled with understanding the language of the discipline of pedagogy. Participants generally enjoyed being a student again and this resulted in some reflection on their own students and seeing things from the student's perspective. The last theme describes the new world in which participants felt that they now planned teaching and learning with insight rather than from their previous knowledge base of learning by doing and observing. Conclusion: The findings of this study suggest that the postgraduate diploma is appreciated and that participants have learnt from their experiences. Ways must be found to support those who have completed the programme in taking their learning forward and implementing new knowledge.
Interventions Designed to Improve the Learning Environment in the Health Professions: A Scoping Review
Authors: Gruppen Larry , Irby David M. , Durning Steven J. , Maggio Lauren A.
Published: September 2018

This article was migrated. The article was marked as recommended. Purpose: To identify and describe interventions designed to affect the learning environment (LE) in health professions education, summarize factors that influence the LE, and determine gaps that require additional research. The LE can be thought of as a dynamic and complex construct co-created by people in a particular setting. A positive LE represents a welcoming climate for learning, which enhances satisfaction, well-being, academic performance and collaboration, while a negative LE restricts participation and learning, leading to emotional exhaustion, depersonalization and burnout. Method: A six-step scoping review methodology was followed to identify and report on literature that describes interventions affecting the LE in the health professions education: 1. Identify the research question, 2. Identify relevant studies, 3. Select studies to be included, 4. Chart the data, 5. Collate, summarize and report results, and 6. Consult with stakeholders. Results: 2,201 unique citations were identified and reviewed using titles and abstracts. 240 full-text articles were retained for detailed review, resulting in the inclusion of 68 articles. Study results are reported in relation to essential components of the LE: personal, social, organizational, physical and virtual spaces. Results of four different types to the studies of the LE are described: specific interventionsimpacting the LE, comparisonsof perceptions of the LE by two or more different groups, associations with other variable such as well-being with the LE, and descriptivestudies of the LE. Major influences included accreditation regulations, curricular interventions, faculty/staff development grading practices, instructional interventions, placements, physical and virtual spaces, and support services; and are reported along with specific interventions. Conclusion: These results reflect the complexity of the LE and the need for conceptual clarity. Since the quality of the evidence was not evaluated, the identified influences should be viewed as potential opportunities to improve the LE.
Coastal cliff rock mass weakening of Chalk and the impact of salt water
Authors: Lawrence James A. , Spence Richard , Mortimore Rory N. , Eade Martin , Bottrell Simon H.
Published: September 2018

The relationship between salt water and the strength of Chalk forming the coastal cliffs of northwest Europe was investigated. Uniaxial compressive strength (UCS) tests on core samples from three horizontal boreholes drilled at the base of Chalk cliffs in East Sussex, UK, showed the weakest Chalk to be near the cliff face. The UCS nearly doubled over the length of the 9 m deep boreholes. The UCS results were close to values expected for Chalk of this intact dry density for samples farthest from the cliff face. High chloride concentrations (salt water) of up to 69 000 mg/l were found to be associated with the lowest UCS values closest to the cliff face. Lower chloride concentrations, with values of 1850 mg/l or less and often with a non-marine origin, were found in the stronger core samples. It can be concluded that the Chalk coastal cliffs in the areas tested became weaker towards the cliff face. This can, in part, be linked to salt water weakening although it is likely that other factors are also contributing to this phenomenon.
The Effect of Viewer's Purchase Intention on TV Home-Shopping Travel Product Selective Attributes: Focusing on The Mediating Effect of Perceived Value
Authors:   The Tourism Sciences Society Of Korea, Lee Jun-Ho , Yoon Ji-Hwan
Published: September 2018

In recent years, sales of travel products through TV home-shopping channels have become necessary to expand the sales of travel agencies. As a result, the proportion of travel arrangements are increasing for TV home-shopping companies, and viewers can easily encounter TV home-shopping travel products at home. This study is to help organize efficient TV home-shopping travel products by classifying the attributes of tourists’ TV home-shopping travel product selection, and to analyze the mediating role of perceived value ​​in the process of attracting purchase intention. In order to achieve the purpose of this study, customers who had purchased or watched travel products through TV home-shopping were surveyed. As a result, it was found that payment benefits, brand image and trust, product detail information, counselor competency, and broadcast time influenced perceived value among the attributes of TV home-shopping travel product selection, and brand image and trust, product detail information, and counselor competency influenced purchase intention. Brand image and trust, product detail information, and counselor competency also played a role of mediation when perceived value was taken as a mediating factor.
Perception of cost-consciousness among medical students: an 11-item scale
Authors: Menezes Gusmao Marilia , Silva Menezes Marta , Villa Nova Aguiar Carolina , Lins Liliane , Ladeia Ana Marice , Correia Luis Cláudio
Published: September 2018

Introduction: Managing healthcare resources in a cost-conscious way is an important topic in medical education.  A validated instrument to measure the perception of cost-conscious attitudes of medical students could be an important tool for university staff to understanding them and to plan and evaluate educational interventions to address them. Objectives: To validate a scale to measure the perception of cost-conscious attitudes among medical students. Method: Thirteen items from a survey to measure cost-conscious attitudes in medical students were used. Semantic validation and psychometric analysis (exploratory factor analysis, Cronbach alpha, and composite reliability test) were carried out. Results: A sample of 275 participants, of which 62% were female, with an average age of 25±3.1 years, completed the questionnaire. The best structure to measure the perceptions is the one-factor solution, with 11 of the 13 items remaining in the final version. Substantial Cronbach's alpha for this questionnaire was obtained 0.66 and composite reliability was 0.77. Conclusion: The results suggest that the questionnaire has a satisfactory psychometric quality and is therefore able to measure the perception of medical students about cost-conscious attitudes.
Antimicrobial activity of Isothecium alopecuroides and potential effect of some climate elements on the activity of this bryophyte sample
Authors: Altuner Ergin Murat , Çetin Barbaros
Published: September 2018

Aim of study: This study aims to present how some climate elements can dramatically affect the antimicrobial activity of a plant by using Isothecium alopecuroides (Lam. ex Dubois) Isov., a bryophyte, as a plant sample to put forward some important environmental factors.Material and Methods: Two bryophyte samples, which were collected from two different locations, namely Aydın and Muğla. Chloroform, benzene, diethyl ether, ethyl alcohol, methyl alcohol, ethyl acetate, sdH2O and 0.5 M Tris-HCl buffer (pH: 8.0) were used as extraction solvents. The antimicrobial activity were tested against Bacillus subtilis, Candida albicans, Escherichia coli, Listeria monocytogenes, Salmonella enteretidis, Shigella flexneri, Staphylococcus aureus and Yersinia enterocolitica by disk diffusion, minimum inhibitory concentration test and minimum bactericidal/fungicial concentration tests. Meteorological data were obtained from the Turkish State Meteorological Service.Main results: As a result, it was observed that the bryophyte sample collected from Aydın was only active against B. subtilis with only its benzene extract, but the sample collected from Muğla was active against B. subtilis, S. aureus, E. coli and C. albicans with its different extracts at different ranges. Some climate elements were also found to be important in the activity of samples.Research highlights: It is concluded that in any study based on secondary metabolites, the time and the environmental conditions, where the plant samples are collected should be taken into account.
Anti-c-Myc Tag (9E10) Affinity Gel Protocol v1
Authors: Knight Kelsey
Published: September 2018

Catalog Number:658502Storage Temperature:2°C-8°CProduct DescriptionAnti-c-Myc Tag (9E10) Affinity Gel consists of anti-c-myc monoclonal antibody (clone 9E10), covalently immobilized onto 6% high density glyoxal agarose beads. The affinity resin can be used in affinity purifying and immunoprecipitation of c-Myc-tagged fusion protein.Binding SpecificityMouse monoclonal antibody 9E10 recognizes the c-myc epitope N-EQKLSEEDL-C and is purified through Protein G chromatography. The antibody conjugated affinity resin can bind to epitope at N-terminal, C-terminal, and internal locations of a fusion protein. The binding capacity is greater than 0.5mg per ml of c-myc agarose resin.ReagentAnti-c-Myc Agarose Affinity Gel is supplied as a 50% suspension in phosphate-buffered saline, pH 7.2, containing 0.09% sodium azide.Precautions and DisclaimerThis product is for research use only. Please consult the Material Safety Data Sheet for information regarding hazards and safe handling practices.Storage/StabilityAnti-c-Myc Agarose Affinity Gel should be stored between 2°C and 8°C for maximum stability. The unopened product is stable for one year when stored as indicated. After use, the resin should be regenerated and stored in TBS or PBS buffer (pH 7.2) containing 0.09% sodium azide.
Anti-DYKDDDDK Tag (L5) Affinity Gel Protocol v1
Authors: Knight Kelsey
Published: September 2018

Catalog Number:651501, 651502, 651503Storage Temperature:4°CProduct Description: Anti-DYKDDDDK tag (L5) affinity gel is a purified rat IgG2a, κ monoclonal antibody covalently attached to agarose by hydrazide linkage. It is useful for purification or immunoprecipitation of DYKDDDDK-tagged fusion proteins. The binding of antibody to the DYKDDDDK tag is not calcium dependent.Binding Specificity: Octapeptide (N-DYKDDDDK-C) at N-terminal, Met-N-terminal, C-terminal, and internal locations of a fusion protein. The binding capacity is greater than 0.8mg/ml of L5 agarose resin.Reagent: Anti-DYKDDDDK tag (L5) affinity gel is supplied as a 50% suspension in phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.Precautions and Disclaimer:This product is for research use only. Please consult the Material Safety Data Sheet for information regarding hazards and safe handling practices.Storage/Stability: Anti-DYKDDDDK tag (L5) affinity gel should be stored in at 4°C for maximum stability. The unopened product is stable for one year when stored as indicated. After use, the resin should be cleaned and stored in TBS or PBS buffer (pH 7.2) containing 0.09% sodium azide.
Psychiatric morbidity among school students
Authors: Nayak Madhu , Lavania Sagar
Published: September 2018

Background: Psychiatric morbidity represents most important problem among all children including school going children worldwide, prevalence of psychiatric disorders among children has been reported to be 14-20% across various studies Child and adolescent population are susceptible for psychiatric morbidity; we plan to evaluate the prevalence of psychiatric morbidity among school going students of class 8 and 9.Methods: It was a cross sectional observational study. Study was conducted in two steps, firstly screening was done with GHQ-12 along with socio-demographic data sheets, on second step students scoring above GHQ cutoff score were interviewed by consultant psychiatrist and diagnosis was made as per ICD 10 DCR.Results: A total of 128 students, consisting of 73 male and 55 females (57% and 43% respectively) with mean age of 13.02±0.58 years participated. With GHQ screening 38 students scored above the cut-off marks and finally 6 children were diagnosed as generalized anxiety disorder, 6 as Depression, 1 as elimination disorder (nocturnal enuresis), 3 as separation anxiety, 4 cases of OCD, and 2 cases of Panic disorder totaling to 21 (16.41%) students.Conclusions: This study finds a prevalence of 16.41% of the psychiatric morbidity among school students.
İşletmelerin Stratejik Yönetiminde Sosyal Ekonomik Ağların Önemi
Authors: DALMIŞ Alper Bahadır
Published: September 2018

Günümüzde
sınırsız sayı ve içerikteki iletişim olanaklarıyla “ağların ağı” olarak
nitelenen internet üzerinden kurulan sosyal ağların kullanımı küresel düzeyde
yaygınlaştıkça, bu tür iletişim ağlarına ekonomik ağlar da eklemlenmiştir.
Böylece internet insanlık tarihinde şimdiye kadar görülmemiş tarz ve içerikte
yeni “sosyal ve ekonomik ilişkileri” gündeme getirmeye başlamış; geleneksel
ekonomilerde yüzyıllardır benzer şekilde tanımlanan yönetim, satış, talep, arz,
fiyat, pazarlama vb. konularla ilişkili tüm klasik kuramlar yeni ortaya çıkan
“sosyal ve ekonomik ağlar” içerisinde yeniden tanımlanmaya başlanmıştır. Temel
amacı strateji oluşturma sürecinde sosyal ve ekonomik ağlara odaklanmanın anlam
ve önemini ortaya koymak olan bu araştırma kapsamında, 21.yüzyılda
sosyo-ekonomik alanlarda yaşanan değişim ve dönüşümleri açıklayan paradigmalar
çerçevesinde sosyal ve ekonomik ağ odaklı strateji oluşturma süreçleri
incelenmeye çalışılmıştır.
Tutum, Başarı ve Cinsiyet Işığında Lise Öğrencileri ve Matematik
Authors: ESKİCİ Menekşe , ILGAZ Gökhan
Published: September 2018

Bu araştırmanın amacı, lise öğrencilerinin matematik dersine yönelik tutumlarının, matematik başarılarının, sınıf düzeylerinin ve cinsiyetlerinin birbirleriyle olan ilişkisini belirlemektir. Araştırma tarama modelindedir. Araştırmada veri toplamak amacıyla “matematik tutum ölçeği” kullanılmıştır. Öğrencilerin karne notları akademik başarı notları olarak kabul edilmiştir. 2017-2018 eğitim öğretim yılında veriler toplanmış ve SPSS 21 kullanılarak analiz edilmiştir.  Araştırma 381 lise öğrencisi ile gerçekleştirilmiştir. Yapılan analizler sonucunda öğrencilerin matematik dersine yönelik tutumlarında cinsiyete göre anlamlı fark olmadığı; sınıflar açısından 12. sınıflar ile 10. ve 11. sınıflar arasında yüksek düzeyde anlamlı farklılıklar olduğu, 12. sınıfta okuyan öğrencilerin matematik dersi notları 10. ve 11. sınıfta okuyan öğrencilere göre anlamlı düzeyde düşük olduğu tespit edilmiştir.
Türkiye İktisat Tarihinde Öznel Boyutları ile Müdahaleciliğin Gelişimi ve Kurumsallaşması: Etibank Örneği
Authors: DOĞANGÜN YASA Bengü
Published: September 2018

Türkiye
iktisat tarihinde Cumhuriyetin erken dönemlerinden itibaren devlet
müdahaleciliği kurumsal bir çerçeve içerisinde oluşturulmaya çalışılmıştır. Bu
çalışma müdahaleciliği ağır sanayi alanında temsil etmek üzere kurulan
Etibank’ın 1935-1950 tarihleri arasındaki faaliyetlerini ve bu dönemde
gerçekleştirilen yasal düzenlemeleri analiz ederek; Türkiye’de devlet
müdahaleciliğinin kurumsal boyutlarını ortaya çıkarmayı amaçlamaktadır. Türkiye
iktisat tarihinin belirli bir döneminde oluşturulmaya çalışılan ekonomi
politiğin, kurumsal bir örnek üzerinden analizi, müdahaleciliğin niteliğinin
tanımlanmasına katkı sağlayacaktır. Çalışmada Etibank’ın kuruluş yıllarını
takiben faaliyetleri genel çerçevede incelenmiş; Türkiye’de devlet
müdahaleciliğinin pragmatik nitelikler sergilediği gözlenmiştir.
Consumo de alimentos não saudáveis entre adolescentes brasileiros e fatores associados
Authors: Bortolotto Caroline Cardozo , Meller Fernanda De Oliveira , Otte Jorge , Rombaldi Airton José , Azevedo Mario Renato , Madruga Samanta Winck
Published: September 2018

Objetivo: Avaliar o consumo de alimentos não saudáveis e fatores associados em adolescentes estudantes do ensino médio integrado da rede pública federal de quatro cidades do sul do país. Métodos: Estudo transversal de base escolar realizado com adolescentes. O consumo alimentar foi avaliado pelo Formulário de Marcadores de Consumo, autoaplicado, referente à semana anterior à entrevista. Foi realizada análise descritiva das variáveis estudadas, além da associação entre o consumo alimentar e as variáveis independentes (sexo, idade, ano escolar, índice de bens e prática de atividade física). Foi utilizado teste Qui-quadrado para heterogeneidade ou tendência linear (p<0,05). Resultados: Amostra composta por 832 alunos do 1º ao 3º ano do ensino médio. O alimento mais consumido em todos os dias as semana foi o refrigerante (23,1%). Grande parte consumiu alimentos fritos e embutidos de dois a três dias na semana, (42,4% e 35,5%, respectivamente). As meninas (p<0,001) e os indivíduos considerados ativos fisicamente (p=0,044) consumiram mais bolacha/biscoito doce em relação aos meninos e aos inativos fisicamente. Quanto ao índice de bens, houve relação direta entre aqueles mais ricos e consumo de alimentos fritos (p=0,003) e refrigerante (p=0,004). Conforme aumento do ano escolar menor foi o consumo de bolacha/biscoito doce (p=0,002), salgado (p=0,002) e refrigerante (p=0,009). Conclusão: Foi observado consumo elevado de alimentos não saudáveis, enfatizando a importância de ações de base escolar que reforcem a importância de dietas equilibradas nessa faixa etária.
Editorial
Authors: Editorial Equipe
Published: September 2018

Fechamos o ano de 2017 com mais um “Temas Livres”, abordando diversas temáticas da saúde coletiva. Tivemos 13 artigos originais e um resumo de tese. A saúde LGBT foi abordada em dois artigos, um trata da percepção de homens trans sobre sua voz nas relações sociais e o outro apresenta

alguns impactos na saúde em grupos LGBT causados pela violência. O direito sanitário também foi abordado neste número, sendo apresentado como uma lacuna identificada tanto nos cursos de graduação de enfermagem e de direito.
Peningkatan Hasil Belajar Siswa Kelas XA MAN 1 Banjarmasin Melalui Penerapan Model Kooperatif Tipe Team Assisted Individualization pada Konsep Reaksi Reduksi –Oksidasi
Authors: Zahara Rita
Published: September 2018

Research’s aim is to improve the student’s learning outcomes by using cooperative learning type Team Assisted Individualization (TAI) in reaction oxidation-reduction concept. This study used class action researched method with cycle model. The research was done in XA class of MAN 1 Banjarmasin with 36 students in 2014/2015 academic year. The research instrument was learning outcomes test, the teacher and student’s observation sheet, and the students’s response questionnaire. The data were the result of student’s learning outcome, the result of teacher and student’s observation, and student’s response to the study, then it was analyzed by qualitative descriptive. The results showed that by using TAI mode in reaction-oxidation-reduction concept could increase student’s learning outcomes, from grade 67,78 (38,88% ) in cycle I to grade 83,42 (78%) in cycle II.
Akad Shulh dalam Sengketa Hukum Muamalah (Litigasi dan Non Litigasi)
Authors: Yuliani Ma’rifah
Published: September 2018

Akad Shulh dalam Sengketa Muamalah (Litigasi dan Non Litigasi). Penelitian ini bertujuan untuk mengetahui penggunaan akad shulh dalam sengketa hukum ekonomi syariah (muamalah) baik di dalam pengadilan (litigasi) maupun di luar pengadilan (non litigasi). Hasil penelitian ini menyebutkan bahwa penggunaan akad shulh di luar proses pengadilan (non litigasi) terlihat dari penggunaan negosiasi, mediasi, arbitrase yang bertujuan untuk mendamaikan kedua belah pihak yang berselisih. Adapun penggunaan akad shulh pada litigasi diketahui dengan proses adanya mediasi di pengadilan, yang awalnya hanya berupa anjuran dari ketentuan Pasal 154 R.Bg/130 HIR. Namun setelah lahirnya PERMA No. 01 Tahun 2008 maka proses mediasi atas penyelesaian sengketa secara damai menjadi bersifat memaksa. Shulh yang merupakan perdamaian dimasukkan ke dalam Buku II tentang Akad dalam Kompilasi Hukum Ekonomi Syariah.
Storage Capacitance Minimization In Led Drivers Based On Photometrical Constraints And Converter Integration
Authors: Almeida Pedro S. , Soares Guilherme M. , Braga Henrique A. C.
Published: September 2018

This work proposes a novel combined approach for reducing the storage capacitances in off-line high power factor LED drivers. The proposal is to combine converter integration (power factor correction plus power control stages sharing a common switch) with photometrical constraints on the maximum allowable LED current ripple. An experimental setup was used to assess the upper limit for current ripple on the LEDs based on luminous flux drop, efficacy drop and chromaticity coordinate change. By combining the ripple design constraint obtained from photometrical measurements with the design methodology of an integrated converter, the largest storage capacitances (bus and output capacitors) were greatly reduced, allowing the use of small film capacitors of long lifespan, rather than relying on large short-lived electrolytic capacitors. As a design example, an integration between a SEPIC power factor preregulator and a buck-boost power control stage was chosen and a prototype was built, fed from 220 V / 60 Hz mains voltage and feeding 56 series-associated LEDs (ca. 70 W). The driver imposed a 50% current ripple on the LEDs, value for which it was found to yield only 0.2% decrement in luminous flux, while preserving color stability.
Yenidoğan izole konjenital kalp bloklarında pacemaker implantasyonu: Tek merkez deneyimi
Authors: KOÇ Murat
Published: September 2018

Amaç: Yenidoğan döneminde izole
konjenital tam kalp bloğu oldukça nadir görülen bir hastalıktır. Genellikle
anne kanında altta yatan immun sistem hastalıklarına bağlı gelişen otoantikorların
plasenta yoluyla geçişi ile bebeğin kalp ileti sisteminde fibrozis ile
sonuçlanmasının neden olduğu bilinmektedir. 
Erken dönemde tanı konulmayan ve tedavi edilmeyen hastalarda yüksek
oranda ani bebek ölümü ve ciddi morbidite ile kendini gösterir. Bu çalışmadaki
amacımız kliniğimizin konu ile ilgili tecrübelerini aktarmaktır.Gereç ve Yöntemler: Çalışmada 2011-2017
yılları arasında Dr. Sami Ulus Kadın Doğum Çocuk Sağlığı ve Hastalıkları Eğitim
ve Araştırma Hastanesi Kalp ve Damar Cerrahisi Kliniğinde izole kalp bloğu
nedeniyle cerrahi olarak epikardiyal kalp pili implante edilen 9 hasta (1 erkek,
8 kız) retrospektif olarak incelendi.  Bulgular: Altı hastada (%67) kalp bloğu
tanısı intrauterin hayatta iken yapılan fetal ekokardiyografi incelemesi ile
kondu. 3 (%33) hastamızda ise doğumdan sonra ortaya çıkan bradikardi sonrası
çekilen elektrokardiyografiler (EKG) ve transtorasik ekokardiyografi( TTE)
incelemeleri ile tanı konuldu. Hastaların 8 (%89)’inde annede otoimmün bir
hastalık bulunmaktaydı. Bunların %62’si Sistemik Lupus Eritamatozus (SLE)
(n=5), %38’i Sjögren Sendromu (n=3) tanıları ile takip edilmekteydi. Tüm
hastalara epikardiyal kalp pili implante edildi. Bir hastada postoperatif 2.
ayda sepsis nedeniyle mortalite görüldü. Diğer hastaların takipleri sorunsuz
olarak devam etmektedir.Sonuç: Yenidoğan dönemi tam kalp bloğu
yüksek mortalite ve morbidite ile seyreden bir durumdur. Artan tecrübe ile birlikte
fetal ekokardiyografi prenatal dönemde birçok konjenital kalp hastalığının
tanısının konulmasını sağlamaktadır. Epikardiyal kalp pili implantasyonu
mortalite ve morbiditede belirgin derecede azalma sağlayan tek tedavi
yöntemidir.
TASHMIM AN NAMUDZAJ LI TA'LIM AL LUGHAH AL 'ARABIYAH AL ITTISHALIYAH
Authors: Pebrian Rojja
Published: September 2018

The world today has witnessed a strong demand for learning the Arabic language whether in the Arab countries or the non-Arab countries and this language is gaining importance day by day. The teaching of Arabic has expanded throughout the world, and its educational approaches have expanded, including the communicative approach. The aim of this study is to present a proposed vision for teaching Arabic language through communicative approach. The researcher adopted the descriptive analytical method. The study concluded that the learning program of communicative Arabic language should has several things, including: the educational aspects of the implementation of pedagogy, the role of the teacher, the role of the learner and the role of subjects, focus skills, other interests like teaching time, information technology and environment, and good preparation of the Arabic language communication textbook
Climate Volatility and Household Saving in China
Authors: Huang Jr-Tsung , Wu Liping
Published: September 2018

Many studies have investigated the correlation between climate change and economic growth. However, this study focuses on household saving, whereby growth may be correlated with climate volatility. This study conducts a dynamic panel analysis using data on Chinese provinces for the period of 2001–2009. Various indicators of climate volatility are employed to ensure robustness, and the Generalized Method of Moments (GMM) approach is chosen to reduce endogeneity. The estimation results show that in rural areas, temperature volatility is positively correlated with the household saving rate, but that the correlation is weaker in urban areas. This study suggests that first, to increase household welfare, risk-pooling insurance should be applied, and second, that rural areas should be the priority for development over urban areas.
Nursing Students’ Knowledge of Palliative Care at a University in Turkey
Authors: Polat Ülkü , Karataş Tuğba
Published: September 2018

Background and Purpose:

Nursing students must acquire knowledge and skills sufficient to deliver high-quality services. Previous studies indicated that students’ palliative care knowledge was insufficient. Few studies evaluating nursing students’ palliative care opinions and skills are available in Turkey. This study aimed to determine student nurses’ knowledge of palliative care.

Methods:

This descriptive survey study included 658 students. Researchers collected the data via a 19-item questionnaire. Frequency, percentage, and mean values were used in analysis of the data.

Results:

Only 5.3% of participants correctly answered all items, while 26.3% gave correct answers in line with palliative care theoretical framework, and 5.3% gave correct responses for symptom management. Students were found to be quite lacking in palliative care knowledge.

Implications for Practice:

A content increase in the curriculum could improve students’ theoretical knowledge. In addition, students can be incorporated, as team members, into the palliative care process beginning at patient diagnosis.
When Checklists Were New: The Prototype of DSM’s Operational Criteria
Authors: Justman Stewart
Published: September 2018

Since 1980, the DSM diagnostic system has used checklists of symptoms to establish the presence of disorder. The prototype checklist precedes DSM-III by more than two decades, and while it prefigures in detail the predominant DSM diagnosis—Major Depressive Disorder (MDD)—it was a makeshift instrument never intended for diagnostic use, least of all as a method of diagnosing mental disorder in the general population. With the triumph of the DSM diagnostic system and the diagnosis of MDD in particular, a checklist that originally served as a device for research into an imperfectly understood disorder, and was not proposed for general adoption, reified and became a formula for diagnosis on a mass scale.
False Beliefs in Academic Psychiatry: The Case of Antidepressant Drugs
Authors: Hengartner Michael P. , Plöderl Martin
Published: September 2018

Antidepressant drugs are the mainstay of depression treatment in both primary and specialized mental health care. However, academic psychiatry holds false beliefs about antidepressants and we expose two of them in this essay. First, recent attitude surveys conducted among psychiatrists and general practitioners have revealed that physicians attribute antidepressants’ effects mostly to the drugs’ pharmacologic action and less so to placebo effects. Second, academic psychiatry maintains that physical dependence to antidepressant drugs does not exist and that “discontinuation symptoms” upon stopping maintenance pharmacotherapy are benign and affect only a small minority of antidepressant users. As we review in this essay, these beliefs are at odds with the scientific literature. The largest and most comprehensive meta-analysis of antidepressant trials conducted to date indicates that 88% of the drugs’ treatment outcome is accounted for by placebo effect. Furthermore, physical dependence appears to be a serious issue, as severe and persistent withdrawal reactions affect up to 50% of antidepressant users according to several studies. Correcting false beliefs prevailing in academic psychiatry is needed and has important implications for psychiatric training, continuing medical education, and practice.
Perencanaan Komunikasi Program Studi Ilmu Komunikasi Fakultas Ilmu Sosial dan Ilmu Politik UIN Raden Fatah Palembang
Authors: Ropik Ainur
Published: September 2018

Penelitian ini meneliti mengenai Perencanaan Komuniasi Program Studi Ilmu Komunikasi Fakultas Ilmu Sosial dan Ilmu Politik Universitas Islam Raden Fatah Palembang, dengan tujuan antara lain: untuk mendeskripsikan bagaimana pola perencanaan komunikasi yang dilakukan untuk memperoleh dukungan semua pihak dalam mewujudkan visi bersama Metode penelitian ini menggunakan metode kualitatif dengan analisis SWOT. Perencanaan Komunikasi adalah bagian dari manajemen strategis yang merencanakan secara terus menerus untuk setiap infrastruktur komunikasi; komunikator, pesan, media, khalayak dan evaluasi umpan balik secara tepat. Hasil akhir dari proses perencanaan komunikasi adalah semakin menguatkan citra positif dan kepercayaan khalayak pada Program Studi Ilmu Komunikasi. Namun kondisi objektif perencanaan komunikasi di lingkungan Program Studi Ilmu Komunikasi belum berjalan dengan baik, sehingga perlu diambil langkah-langkah antara lain: 1) Peningkatkan ethos komunikator yang notabene sebagai source credibility di Program Studi Ilmu Komunikasi masih jauh dari kondisi ideal yang diharapkan. 2) Mengomunikasikan pesan-pesan dari program komunikasi harus dilakukan secara terus menerus dan berkesinambungan. Terutama pesan-pesan yang bisa memengaruhi khalayak untuk mengubah perilaku dan tindakan sesuai dengan tujuan Program Studi. 3) Melakukan optimalisasi potensi-potensi media yang ada untuk digunakan dalam proses komunikasi kepada khalayak luas. Mengingat pentingnya optimalisasi media, dipandang perlu untuk menunjuk petugas khusus yang bekerja untuk mengelolah media dan membagun media relations. 4) Membangun hubungan yang baik dengan khalayak internal dan eksternal. Meminimalisir potensi yang akan membuat khalayak kecewa.
Perspectivas na utilização de fitoterápicos na cicatrização tecidual: revisão sistemática
Authors: Martelli Anderson , Andrade Thiago Antonio Moretti de , Santos Gláucia Maria Tech dos
Published: September 2018

A cicatrização de feridas é uma resposta biológica à lesão tecidual. Inúmeras pesquisas e diversos métodos estão sendo desenvolvidos e empregados para acelerar o processo de cicatrização. A utilização de fitoterápicos tem merecido crescente interesse, assim, a presente revisão faz uma descrição das perspectivas na utilização de fitoterápicos na cicatrização tecidual. A pesquisa foi realizada a partir de uma revisão da literatura especializada, sendo consultados artigos científicos publicados entre os anos de 1996 e 2016. Empresas e pesquisadores de diferentes áreas do conhecimento e a população em geral têm demonstrado interesse nos fitoterápicos como alternativas para o tratamento de diversas afecções e lesões. Este fato ocorre principalmente pelo menor custo e a possibilidade de menores efeitos adversos dos fitoterápicos em comparação aos medicamentos alopáticos, assim como, pela biodiversidade da flora brasileira.Descritores: Medicamentos Fitoterápicos; Cicatrização; Ferimentos e Lesões.
Avaliação in vitro da eficácia da remoção da guta-percha no retratamento endodôntico por meio de microscopia operatória
Authors: Barbosa Josimeire Alves Pereira , Tateyama Melissa Ayumi , Morais Carlos Alberto Herrero de , Queiroz Alfredo Franco , Pavan Nair Narumi Orita , Endo Marcos Sergio
Published: September 2018

Retratamento endodôntico é uma tentativa de restabelecimento da saúde dos tecidos periapicais devido um tratamento inadequado ou uma reinfecção dos canais obturados que foram acometidos por uma infiltração coronária ou apical. A remoção completa do material obturador é necessária para obter acesso ao forame, facilitando assim a limpeza e modelagem do sistema de canais radiculares. O objetivo deste estudo foi comparar in vitro a remoção da guta-percha com ou sem uso do solvente. Vinte e oito pré-molares unirradiculares foram instrumentados com sistema Reciproc e obturados por meio da técnica de condensação lateral. A remoção da guta-percha foi realizada de duas formas distintas, sendo as amostras divididas aleatoriamente em dois grupos: com (n=14) e sem solvente (n=14). Após o seccionamento dos espécimes, realizou-se a captura das imagens das raízes por meio de uma câmera fotográfica acoplada ao microscópio operatório. A mensuração da área de guta-percha remanescente foi realizada pelo programa AUTOCAD. O remanescente de guta-percha entre os grupos foi comparado por meio do teste Mann-Whitney (p<0,05). Após aplicação da técnica de desobturação, verificou-se que todas as amostras mostraram uma redução estatisticamente significante. Quando comparados os terços cervical (TC), médio (TM) e apical (TA) do canal radicular no terço apical foi verificado maior quantidade de remanescente de guta-percha em ambos os grupos estudados. Não houve diferença estatística significativa sobre o remanescente de guta-percha ao comparar os grupos com e sem solvente (p=0,546). Concluiu-se que o uso do solvente não melhorou a remoção de remanescente de guta-percha das paredes do canal radicular.Descritores: Endodontia; Guta-Percha; Retratamento; Dente.
Organ location and classification of neoplasms: Pathomorphology, clinical prognosis and basics of treatment
Authors: MADEJ JANUSZ A.
Published: September 2018

The study describes the organ location of neoplasms, their classification, karyotypic and phenotypic changes and biomarkers. The majority of neoplasms mentioned in the study behave typically in their local growth, infiltration and destruction of neighboring tissues, recurrence and metastasis. Nonetheless, numerous exceptions from that rule are noted. The study discusses the process of the formation of monoclones in malignant tumors, especially in lymphomas. The phenotypic markers of differentiation have been useful in the classification of neoplasms. Neoplastic differentiation begins at the molecular level, which is reflected in the phenotype of the cells, and the direction of differentiation usually corresponds to the initial tissue. The neoplastic cell genome is unstable and susceptible to mutation, which may also be influenced by viruses that change the genetic code. This affects the cell cycle and results in proliferation prevailing over necrosis and apoptosis. The karyotypic changes in neoplastic cells are transmitted from generation to generation; they are irreversible and progressive. Moreover, these cells, as compared to normal cells, show higher resistance to various stress factors, which may play an important role in their progression to a malignant phenotype. It has been shown that malignant neoplasms express the whole range of malignant characteristics, although this feature is not constant and may be influenced by the genetic instability of the cells, by the microenvironment and/or by the treatment.
Usefulness of immunohisto(cyto)chemistry, antigens and cell marker detection in cancer diagnosis and histogenesis
Authors: A.MADEJ JANUSZ
Published: September 2018

It was shown that the unification of neoplastic nomenclature could be very challenging. It was also noted that neoplastic disease is a dual disease, involving both the presence of neoplastic cells in the organism and the resulting disturbances in the functioning of the immune system. The study also follows the principle that the general markers are examined before the specific ones, especially in neoplasms of unknown origin or those suspected of endocrine secretion, such as carcinoid tumours.
Oxidative DNA Damage Protective Ability of Punica granatum
Authors: TOPTANCI Bircan Çeken
Published: September 2018

Oxidative stress can cause harm to macromolecules such as lipid, protein and DNA. Therefore, therehas been a huge attention to find out organic sources with antioxidant properties to prevent oxidative stress-induceddamage. Literature data on this subject have suggested that consuming food which contain phenolic compoundsdecreases the risk of several diseases and protection against certain forms of cancer. Punica granatum L., knownas pomegranate belongs to the family Punicacea. It is one of the fundemantel fruit, cultivated in Mediterraneancountries. The present study was designed to investigate the total phenolic content of the Derik pomegranate peeland juice, and their protective ability against DNA damage induced by Fenton System. The result indicates thatboth juice and peel have a significant protective effect on oxidative DNA damage.
An assessment of geo-morphology and hydro-biological factors of major wetlands of Bangladesh
Authors: Molla Md. Habibur Rahman , Islam M. Shafiqul , Rahman M. Aminur , Lee Sang-Go , Jahan Bushra , Iqbal Jafar , Mamtaz Salma
Published: September 2018

The present study investigates the geo-morphological features, hydro-biological profiles and resource characteristics of some selected wetlands in Brahmanbaria district, Bangladesh. Two categories of wetland have been classified on the basis of area such as the small category (40–100 ha), which belongs to 11 wetlands and the large category (100–200 ha) to nine wetlands. The mean depth of all the surveyed wetland does not exceed 3.29 ± 0.83 m. The mean value of organic matter was measured as 7.5 ± 6.34%. The maximum organic matter was recorded at Gagotia beel (24.60%) and the minimum organic matter was recorded at Kajolia beel (2.06%). The mean value of organic carbon was measured as 3.93 ± 3.33%. The highest amount of organic carbon was found at Gagotia beel (12.95%) while the lowest amount of organic carbon was observed at kajolia beel (1.08%). Soil texture indicates the percentage composition of sand, silt and clay in sediment. The average concentration of sand, silt and clay was recorded to be 53.31 ± 15.32, 17.61 ± 9.56 and 29.08 ± 12.87%, respectively. Among the 20 selected wetlands examined, 13 were found to be perennial wetlands where water is available throughout the year. There was significant difference among different wetlands in terms of organic carbon, organic matter, sand, silt and clay (P < 0.05) as analyzed by One Way Analysis of Variance (SPSS v.22). The sampling stations were presented as a map created by GIS (ArcMap v.10.1). This qualitative and quantitative assessment will not only provide new information about the geo-morphological and hydro-biological insights into the wetland but also will facilitate the development, management, and conservation of aquatic biodiversity in a significant and worthwhile manner.
Detoxification potential and rehabilitation of activated sludge after shock loading of Sofia's wastewater treatment plant ‘Kubratovo’ with mazut
Authors: Topalova Yana , Todorova Yovana , Schneider Irina , Yotinov Ivaylo , Stefanova Vesela
Published: September 2018

The shock loading of wastewater treatment plants (WWTPs) with toxic pollutants remains a critical problem with crucial significance for the technologies. On 5 November 2014, 30 tons of mazut were emitted in Sofia's WWTP ‘Kubratovo’, passing through equipment and damaging the functioning of the technological modules. The rehabilitation of activated sludge (AS) after shock loading as well as the development of detoxification activity were investigated. The hydrocarbon index of petroleum products, filamentous index (FI), sludge biotic index, sludge volume index (SVI), chemical oxygen demand (COD), biochemical oxygen demand (BOD5), oxygenases and succinate dehydrogenase activities were analyzed for a period of two weeks. The results show that independently from prolonged rehabilitation period, AS remained with filamentous bulking (SVI over 200 ml/g and FI over 1.107 μm/mg). At the same time, the detoxification potential of the AS was developed. Although the morphological and functional structure was still not fully recovered, the AS developed two adaptive mechanisms. First, activation of shorter, more effective ways for benzene ring cleavage, operated by catechol 2,3-dioxygenase; second, strong increase of succinate dehydrogenase activity, which is consistent with the activation of the degradation of trivial substrates for energy generating to overcome the intoxication and synthesis of oxygenases.