bluuebunny/crossref_metadata_2025 huggingface dataset:
A study of annealed GaN grown by molecular beam epitaxy using photoluminescence spectroscopy.
Authors: Bell Abigail , Harrison Ian , Korakakis Dimitris , Larkins Eric C. , Hayes J. M. , Kuball M.
Published: April 2019

Photoluminescence (PL) spectroscopy has been used to investigate the effect annealing has on molecular beam epitaxially grown GaN in different ambients. By observing the changes in the PL spectra as a function of ambient temperature and atmosphere used, important information concerning the origin of defects within GaN has been found. Samples were annealed in different atmospheres, (including oxygen, oxygen and water vapour, nitrogen and argon), different temperatures. In the 2.0eV-2.8eV region of the PL spectra, two peaks appeared at approximately 2.3eV and 2.6eV, somewhat higher than the usual yellow luminescence peak. We find that the 2.6eV peak is dominant for high annealing temperatures and the 2.3eV peak dominates at low annealing temperatures for the samples annealed in oxygen. When annealed in argon and nitrogen the 2.6eV peak dominates at all annealing temperatures. Changes in the PL spectra between anneals were also seen in the 3.42eV region. The 3.42eV peak is often assigned to excitons bound to stacking faults. Power resolved measurements indicate that in our sample the cause is a donor acceptor pair transition.
Nonlinear Optical Characterization of GaN Layers Grown by MOCVD on Sapphire
Authors: Tiginyanu Ivan M. , Kravetsky Igor V. , Pavlidis Dimitris , Eisenbach Andreas , Hildebrandt Ralf , Marowsky Gerd , Hartnagel Hans L.
Published: April 2019

Optical second and third harmonic generation measurements were carried out on GaN layers grown by metalorganic chemical vapor deposition (MOCVD) on sapphire substrates. The measured d33 is 33 times the d11 of quartz. The angular dependence of second-harmonic intensity as well as the measured ratios d33/d15 = −2.02 and d33/d31 =−2.03 confirm the wurzite structure of the studied GaN layers with the optical c-axis oriented perpendicular to the sample surface. Fine oscillations were observed in the measured second and third harmonic angular dependencies. A simple model based on the interference of the fundamental beam in the sample was used to explain these oscillations.
Time-Resolved Spectroscopy of InGaN
Authors: Pophristic Milan , Long Frederick H. , Tran Chuong , Ferguson Ian T.
Published: April 2019

We have used time-resolved photoluminescence (PL), with 400 nm (3.1 eV) excitation, to examine InxGa1−xN/GaN light-emitting diodes (LEDs) before the final stages of processing at room temperature. We have found dramatic differences in the time-resolved kinetics between dim, bright and super bright LED devices. The lifetime of the emission for dim LEDs is quite short, 110 ± 20 ps at photoluminescence (PL) maximum, and the kinetics are not dependent upon wavelength. This lifetime is short compared to bright and super bright LEDs, which we have examined under similar conditions. The kinetics of bright and super bright LEDs are clearly wavelength dependent, highly non-exponential, and are on the nanosecond time scale (lifetimes are in order of 1 ns for bright and 10 ns for super bright LED at the PL max). The non-exponential PL kinetics can be described by a stretched exponential function, indicating significant disorder in the material. Typical values for β, the stretching coefficient, are 0.45 − 0.6 for bright LEDs, at the PL maxima at room temperature. We attribute this disorder to indium alloy fluctuations.

From analysis of the stretched exponential kinetics we estimate the potential fluctuations to be approximately 75 meV in the super bright LED. Assuming a hopping mechanism, the average distance between indium quantum dots in the super bright LED is estimated to be 20 Å.
Characteristics of Deep Centers Observed in n-GaN Grown by Reactive Molecular Beam Epitaxy
Authors: Fang Z-Q. , Look D. C. , Kim Wook , Morkoç H.
Published: April 2019

Deep centers in Si-doped n-GaN samples grown on sapphire by reactive molecular beam epitaxy, using different ammonia flow rates (AFRs), have been studied by deep level transient spectroscopy. In addition to five electron traps, which were also found in n-GaN layers grown by both metalorganic chemical-vapor deposition and hydride vapor-phase epitaxy, two new centers C1 (0.43-0.48 eV) and E1 (0.25 eV) have been observed. C1, whose parameters show strong electric-field effects and anomalous electron capture kinetics, might be associated with dislocations. E1, which is very dependent on the AFR, exhibits an activation energy close to that of a center created by electron irradiation and is believed to be a defect complex involving VN.
Comparison Study of Structural and Optical Properties of InxGa1−xN/GaN Quantum Wells with Different In Compositions
Authors: Kwon Yong-Hwan , Gainer G. H. , Bidnyk S. , Cho Y. H. , Song J. J. , Hansen M. , DenBaars S. P.
Published: April 2019

The effect of In on the structural and optical properties of InxGa1−xN/GaN multiple quantum wells (MQWs) was investigated. These were five-period MQWs grown on sapphire by metalorganic chemical vapor deposition. Increasing the In composition caused broadening of the high-resolution x-ray diffraction superlattice satellite peak and the photoluminescence-excitation bandedge. This indicates that the higher In content degrades the interface quality because of nonuniform In incorporation into the GaN layer. However, the samples with higher In compositions have lower room temperature (RT) stimulated (SE) threshold densities and lower nonradiative recombination rates. The lower RT SE threshold densities of the higher In samples show that the suppression of nonradiative recombination by In overcomes the drawback of greater interface imperfection.
A Resolution in the Spanish Banking Sector: The Case of Banco Popular Español
Authors: Kozińska Magdalena
Published: April 2019

The restructuring of Banco Popular Español (BPE) through its takeover by Banco Santander provided a valuable example of the first resolution framework application, which allowed for the assessment of its effectiveness. However, similar crisis tools were also utilised in the Spanish banking sector in 2008–2013. Their analysis may provide a valuable contribution to the issue of selecting the most appropriate resolution tools for banks, which can be utilised by Spain and other EU countries when further restructuring their respective banking sectors or managing crises. The aim of this article is to evaluate the effectiveness of the BPE resolution. Additionally, other examples of the application of the “sale of business” tool from the Spanish banking crisis of 2008–2013 were assessed. The conclusions were then used to assess the possible application of similar tools at other banks in Spain and other European countries.
Influence of road lane reductions on motorised and non-motorised traffic safety
Authors: Kim Seongwook , Park Juneyoung , Abdel-Aty Mohamed , Lee Soobeom , Kim Seongho
Published: April 2019

Road lane reduction with the addition of roadway countermeasures (also known as a ‘road diet’) is a transportation planning treatment to achieve systemic traffic improvements. Although lane reductions are expected to increase traffic safety overall, the impacts may vary by different roadway characteristics among sites and by crash types. The main objective of the study reported in this paper was to identify the effectiveness of lane reductions considering various factors including roadway characteristics through estimating crash modification factors (CMFs) for different crash types. The study first evaluated the CMFs for lane-reduction cases to check the overall safety effects using the observational before and after comparison group method. Second, the variation of CMFs due to different roadway characteristic factors was identified. Ultimately, the CMFs were developed for different crash types and severities. The results of the estimated CMFs indicated that lane reductions decreased crash frequency in general. From the CMFs with different traffic volume ranges, it was found that lane reductions have higher safety impacts to reduce total and injury crashes when there are fewer vehicles on roadways.
Development of a solar electrocoagulation technology for decentralised water treatment
Authors: St-Onge Joanie , Carabin Anne , Dia Oumar , Drogui Patrick , El Haji Kamal
Published: April 2019

The goal of this research was to investigate the feasibility of using electrocoagulation (EC) as a primary surface water treatment process that could be used with solar panels in decentralised locations. In this study, the removal of turbidity, ultraviolet light at 254 nm (UV 254) and dissolved organic carbon (DOC) was studied. Operating parameters such as current density (0·91–10 mA/cm2) and charge loading (0·083–1·250 A h/l) in bipolar and monopolar configuration were studied using a direct current (DC) power supply. Experimental results showed that a current density of 4·55 mA/cm2and a treatment time of 60 min in the bipolar configuration allowed the best removal of turbidity, UV 254 and DOC (97·0, 93·0 and 95·2%, respectively). For the second part of the study, the DC power supply was replaced by two photovoltaic panels without the use of a set of batteries and a charge controller. According to the results, the turbidity removal is directly proportional to the solar radiation intensity. This suggests that it is possible to control the charge loading by adjusting the treatment time as a function of solar intensity. Such outcomes suggest that solar-powered EC would be a suitable technology for areas not connected to centralised water treatment networks.
İlköğretim Matematik Öğretmeni Adaylarının Matematiksel Modelleme Özyeterliklerinin Belirlenmesi
Authors: ERDOĞAN Fatma
Published: April 2019

Matematiksel modelleme öğrencilerin
matematiksel düşünme becerileri üzerinde olumlu etkiye sahiptir ve bu
becerilerin geliştirilmesi sürecinde öğretmenin rolü büyüktür. Öğretmenlerin
matematiksel modelleme becerileri hakkındaki özyeterlik inançları,
öğretmenlerin sınıf ortamındaki modellemeye yönelik performanslarını etkileyen
önemli bir faktördür. Bu bağlamda, bu
araştırmanın amacı, ilköğretim matematik öğretmeni adaylarının matematiksel
modelleme özyeterlik inanç düzeylerini belirlemek ve matematiksel modelleme özyeterlik
inançlarını cinsiyet ve sınıf düzeyi değişkenleri açısından incelemektir. Araştırmada
betimsel tarama modeli kullanılmıştır. Bu araştırmaya, 2017-2018 eğitim-öğretim
yılında bir devlet üniversitesinin İlköğretim Matematik Öğretmenliği Programı’nda
öğrenim gören 206 ilköğretim matematik öğretmeni adayı katılmıştır. Araştırma verileri
“Matematiksel Modelleme Özyeterlik Ölçeği” aracılığıyla toplanmıştır. Veri
analizinde ANOVA ve t-testi kullanılmıştır. Araştırma sonucunda, ilköğretim
matematik öğretmeni adaylarının matematiksel modelleme özyeterlik inanç
düzeylerinin orta seviyede olduğu belirlenmiştir. Araştırma bulguları,
ilköğretim matematik öğretmeni adaylarının matematiksel modelleme özyeterlik
inançlarının cinsiyet değişkenine göre anlamlı bir şekilde farklılaşmadığını
göstermektedir. Ayrıca, ilköğretim matematik öğretmeni adaylarının matematiksel
modelleme özyeterlik inançlarının sınıf seviyesine göre anlamlı bir şekilde
farklılaştığı belirlenmiştir. Elde edilen bulgular, dördüncü sınıf ilköğretim
matematik öğretmeni adaylarının matematiksel modelleme özyeterlik inançlarının
birinci sınıflara göre anlamlı şekilde yüksek olduğunu göstermektedir.
Araştırma bulguları doğrultusunda, öğretmen yetiştirme
programlarında öğretmen adaylarının matematiksel modelleme özyeterlik
inançlarını geliştirebilecekleri uygulamalara yer verilmesi önerilmektedir. Ayrıca, öğretmen adaylarının
matematiksel modelleme özyeterlik inançları nitel yöntemlerle analiz edilerek
daha ayrıntılı veriler elde edilen çalışmalar yapılabilir.  Yapılacak araştırmalarda, ilköğretim
matematik öğretmeni adaylarının matematiksel modelleme özyeterlik inanç
kaynakları incelenebilir.
Psikolojik Danışma ve Rehberlik Yüksek Lisans Öğrencilerinin Bir Grup Lideri Olarak Kendilerine İlişkin Değerlendirmeleri
Authors: AVCI Raşit , SANBERK İsmail
Published: April 2019

Bu çalışmanın amacı, yüksek lisans öğrencilerinin bir grup lideri olarak kendilerine ilişkin değerlendirmelerini incelemektir. Çalışmaya 2015-2016 Eğitim Öğretim Yılında Muğla Sıtkı Koçman Üniversitesi Psikolojik Danışma ve Rehberlik Yüksek Lisans Programı’nda bir ders kapsamında grup psiko-eğitimi gerçekleştiren yedi grup lideri katılmıştır. Araştırmanın verileri yarı yapılandırılmış bir görüşme olan repertuar ağı tekniği ile toplanmıştır. Repertuar ağı ile verilerin toplanabilmesi için öncelikle değerlendirme nesneleri (elementler) araştırmacılar tarafından belirlenmiş ve elementlerin karşılaştırılması yoluyla elementler arasındaki farklılıklar ve benzerlikler ortaya çıkartılmıştır. Son aşamada her bir katılımcının Repertuar ağı yapısı incelenmiş ve elementler arasındaki öklid uzaklığı hesaplanmıştır. Araştırma sonucunda, ilk olarak grup liderliği konusunda üç katılımcının öz değerinin yüksek, üç katılımcının öz değerinin orta düzeyde olduğu ve birinin de düşük olduğu belirlenmiştir. İkinci olarak süpervizörüme göre bir lider olarak ben elementi ile bir grup lideri olarak ben elementine beş katılımcı yakın konumlandırırken iki katılımcı kısmen yakın olarak konumlandırmıştır. Danışanlarıma göre bir lider olarak ben elementlerini bir grup lideri ben elementine de altı katılımcı yakın konumlandırmış, bir katılımcı ise kısmen yakın konumlandırmıştır. Üçüncü olarak katılımcıların altısının gerek mesleğe başladıkları zamana, gerekse derse başladıkları zamana göre mesleki açıdan gelişim kaydettikleri belirlenmiştir. Bir katılımcı da daha az gelişme kaydettiğini bildirmiştir. Son olarak da katılımcıların “bir grup lideri olarak ben” elementinin, ideal grup lideri, ideal olmayan grup lideri, tanıdığım iyi bir grup lideri ve tanıdığım kötü bir grup lideri elementlerine olan uzaklıkları incelenmiştir. Elde edilen bulgular literatür çerçevesinde yorumlanmış ve tartışılmıştır.
The predictors and the prognostic significance of axillary lymph nodes involvement in breast cancer
Authors: Bakkour Amine Mohammed , Surriah Mohammed Hillu , Al-Imari Amir Naif Kadum , Al-Asadi Riad Rahman Jallod
Published: April 2019

Background: Breast cancer is the most common cancer among women worldwide. The presence of axillary lymph node metastases in breast cancer is an important factor in assessing prognosis and determines management after surgery. The study aimed at identification of the factors that predict axillary lymph node involvement in CA breast. Addressing the prognostic effect of axillary lymph node involvement in turn of predicting the recurrence of CA breast.Methods: This is a prospective review of one hundred cases of Ca breast who have underwent modified radical mastectomy and axillary clearance at Al-Karama Teaching Hospital during the period from January 2014 to December 2018.Results: Positive axillary involvement was found in (74/100, 74%). The highest occurrence of positive axilla was found in (less than 30 and 30-39 years) age groups (27/74, 36%) with the outer quadrants (upper and lower) constituting the majority (50/74, 68%). Positive axillary involvement was mostly notified in tumor grade T4 (39/74, 53%) and in poorly differentiated lesions (47/74, 64%). The highest recurrence rate was found in patients with positive axillary metastases (12/74, 16%), nodal involvement of ten or more nodes (9/41, 22%), nodes with extracapsular extension (10/51, 20%) and in patients who have not taken and/or completed their chemo-radiation sessions (9/11, 82%).Conclusions: Positive axillary lymph node involvement was seen mostly in: young age patients, outer quadrant lesions, tumors with skin involvement, and poorly differentiated lesions.
Correlation between clinical diagnosis and claussens butterfly chart patterns in patients with vertigo
Authors: Meenakshi Sunderaswaran , Venugopal Mohamkumar , Rajasekar Mcnaughty Krishnaraj
Published: April 2019

Background: Neurotology forms the grey area between otologists and neurologists. Vertigo is also a complex symptom that often has multiple pathologies leading to the presentation. Electronystagmography is a complex investigation that cannot be comprehended by many other doctors. The Claussens butterfly chart offers a simple pictoral representation of the caloric test that can be easily and immediately Understood by patients and other doctors.

Methods: 50 patients presenting to the Neurotology OPD with complaints of vertigo were subjected to this investigation and the butterfly chart derived. The correlation between the clinical diagnosis and the butterfly chart patterns studied.  

Results: The sensitivity and specificity of the butterfly code for central lesions is 75% and 73% respectively. The sensitivity and specificity of the butterfly code for peripheral lesions is 64.3% and 50% respectively.

Conclusions: The butterfly chart is a very simple and useful investigation that can help classify the etiology of vertigo as central or peripheral and thus help in treatment. It is also the only investigation that is helpful to localize the side of lesion in vertigo of any etiology.
Prevalência do diagnóstico citopatológico: uma abordagem sobre as condutas preconizadas pelo Ministério da Saúde
Authors: De Mendonça Fabiana Cristina , Costa Gleiciany Oliveira , Ribeiro Andrea Alves
Published: April 2019

O câncer do colo uterino é causado pela infecção persistente por alguns tipos do Papilomavírus humano (HPV). O objetivo foi avaliar a prevalência das anormalidades citológicas bem como abordar as condutas preconizadas pelas Diretrizes Brasileiras para o Rastreamento do Câncer do Colo do Útero. Este estudo foi realizado no Laboratório Clínico da Pontifícia Universidade Católica de Goiás (LC-PUC Goiás), utilizando as fichas de requisição dos exames citopatológicos entre janeiro de 2016 a dezembro de 2017.  Para análises estatísticas foi criado um banco de dados no programa EXCEL 2013 para o cálculo de prevalências estratificadas por faixa etária entre 14 < 25, 25 < 35, 35 <45, 45 <55, 55 < 65, ≥ 65. Para a associação entre a Zona de Transformação e anormalidades citológicas utilizou-se o programa Epi Info™ versão 7.1.5.2, através do cálculo do Odds Ratio (OR) com Intervalo de confiança (IC) de 95% e valor significativo p < 0,05. Foram analisados 2141 exames citopatológicos satisfatórios, destes 93,9% (2010/2141) casos negativos e 6,1% (131/2141) de anormalidades citológicas. Na faixa etária entre 14 < 25 anos observou 0,4% (9/20) de LSIL, entre 25 < 35 anos observou 0,5% (11/42) ASC-US e 0,5% (11/33) de ASC-H, entre 35 < 45 anos observou 0,2% (5/15) de HSIL, e entre 25 < 35 anos 0,3% (6/20) casos de AGC-SOE/NEO. Houve associação estatisticamente significante entre a representatividade da zona de transformação e anormalidades citológicas (OR: 9,4 IC: 9,5% 3,69 - 26,16 p: 0,000). Conclui-se que o câncer do colo do útero possui grande chance de cura se for diagnosticado precocemente, devendo seguir as Diretrizes Brasileiras para o Rastreamento do câncer do colo do útero evitando a progressão de lesões.
Stephen Fienberg's influence on algebraic statistics
Authors: Petrovic Sonja , Slavkovic Aleksandra , Yoshida Ruriko
Published: April 2019

Stephen Fienberg (1942-2016) was a statistician whose career has been an inspiration for the engagement of statistics with social and scientific issues, and it is in this spirit that he helped steer algebraic statistics toward more of a mainstream. Many of his favorite topics in the area are covered in this special issue. We are grateful to all authors for contributing to this volume to honor him and his influence on the field.

During the preparation of this issue, we also learned about the tragic killing of his widow, Joyce Fienberg, in the Tree of Life Synagogue in Pittsburgh. This issue is dedicated to their memory.
In Solitary Rabbits, Does the Presence or Absence of a Mirror Affect Stress, Fear and Anxiety?
Authors: Schofield Rebecca
Published: April 2019

PICO question

In solitary rabbits, does the presence or absence of a mirror affect stress, fear and anxiety?
Clinical bottom line

Four studies were reviewed in this knowledge summary. Despite the small number of papers available, the controlled trials and their methodologies provide strong evidence that the behavior of solitary laboratory rabbits is affected by the presence or absence of mirrors. This evidence also indicates an effect on their welfare.

The studies suggest that the presence of mirrors provides environmental enrichment and have a positive effect on the subjects health and welfare. However, it is also suggested that mirrors may have some detrimental physical and psychological effects for some individuals. There are also many gaps in the available research and these need to be addressed to give better insight into the effect of mirrors on rabbits.

Because of the current level of knowledge, clinical recommendations cannot be made at present on the use of mirrors in solitary rabbits to improve their veterinary care whilst hospitalised.

  
Söke (Aydın) İlçesi pamuk alanlarında Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) populasyonlarının bazı insektisitlere karşı LC değerleri ve toplam esteraz miktarlarının belirlenmesi
Authors: HATİPOĞLU Ahmet , DURMUŞOĞLU Enver , BALCI Selahattin
Published: April 2019

Amaç:Bu çalışma, bazı insektisitler inAydın ili Söke ilçesi pamuk alanlarından toplanan dört farklı Pamuk beyazsineği Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) popülasyonu için öldürücü konsantrasyon (LC) değerlerinin belirlenmesi amacıyla gerçekleştirilmiştir.Materyal ve Yöntem:Yaprak daldırma yöntemi ile yörede en çok kullanılan insektisitler seçilerek yapılan denemelerde, zararlının nimf dönemlerinde pyriproxyfen ve buprofezine, ergin dönemlerinde acetamiprid ve bifenthrin için LC değerleri belirlenmiştir. Ayrıca biyokimyasal çalışmalar da yürütülerek söz konusu aktif maddelerin toksisite değer farklılıklarının enzimlerle ilişkisinin belirlenmesine çalışılmıştır.Bulgular:Dört farklı beyazsinek populasyonundan elde edilen LC50 değerleri sırasıyla, acetamiprid için; 37.51, 28.22, 52.12, 75,61 ppm; bifenthrin için 2.72, 4.39, 1.08, 1.89 ppm, buprofezin için 30.95, 29.05, 46.46, 25.95 ppm ve pyriproxyfen için 38.85, 76.06, 108.91, 34.15 ppm olmuştur.Sonuç:Ayrıca, biyokimyasal analizlerde söz konusu dört populasyonda sadece toplam esteraz değerleri tespit edilmiş ve enzim seviyelerinde önemli bir fark görülmemiştir.
Mortalidad y factores relacionados al fracaso del destete de la ventilación mecánica en una unidad de cuidados intensivos de Lima, Perú
Authors: Fernández Merjildo Diana , Porras García Willy , León Rabanal Cristian , Zegarra Piérola Jaime
Published: April 2019

Objetivos: Estimar la mortalidad global, la mortalidad relacionada a los tipos de destete de pacientes en ventilación mecánica y describir los factores relacionados al fracaso del destete en una unidad de cuidados intensivos. Material y métodos: Estudio observacional, descriptivo. Se incluyeron 147 pacientes sometidos a destete de ventilación mecánica invasiva que ingresaron con el diagnóstico de Insuficiencia Respiratoria Aguda a la unidad de cuidados intensivos del Hospital Cayetano Heredia durante el año 2014. Resultados: La mortalidad global de los pacientes sometidos a destete de ventilación mecánica fue 27%, se observó mayor mortalidad en el grupo destete prolongado 42%, seguido por destete difícil 29% y destete simple 15% (p=0,039);  la mortalidad global incrementó conforme aumentó la estancia en la unidad de cuidados intensivos y los días en ventilación mecánica, los factores relacionados a fracaso del destete fueron la disminución del nivel de consciencia (Escala de coma de Glasgow < 8puntos) y agitación (p=0,018). Conclusiones: El destete prolongado estuvo relacionado al incremento de la mortalidad en pacientes que ingresaron a ventilación mecánica invasiva por insuficiencia respiratoria aguda, los factores relacionados al fracaso del destete fueron, disminución del nivel de consciencia (Escala de coma de Glasgow <8puntos) y agitación.
Eficacia del Índice de Mannheim en pacientes con peritonitis secundaria de un hospital de Huancayo, Perú
Authors: Sedano Carlos , Lizano Leo , Balbin Javier , Condor Ivan , Atencio Joel , Villalba Carlos
Published: April 2019

Objetivos: Determinar la eficacia del Índice de Mannheim como predictor de mortalidad en pacientes con peritonitis secundaria. Material y métodos: Estudio observacional retrospectivo, tipo prueba diagnóstica. realizado con los datos de las historias clínicas. A través de un muestreo no probabilístico se analizó 294 pacientes: 40 fallecidos y 254 sobrevivientes postoperados de peritonitis secundaria del Servicio de Cirugía General del Hospital “Daniel Alcides Carrión” de Huancayo entre los años 2015 y 2017; se calculó dicho tamaño muestral con el uso del estadístico EPIDAT 4.1 para pruebas diagnósticas. Se determinó: Sensibilidad, especificidad, valor predictivo positivo, valor predictivo negativo, razón de verosimilitud positivo, razón de verosimilitud negativa, curva ROC y el área bajo la curva ROC (ABC). Resultados: El Índice de Mannheim con el punto de corte utilizado según el trabajo original de ≥26 mostró una sensibilidad de 0,85, especificidad 0,972, valor predictivo positivo de 0,829, valor predictivo negativo 0,976. El punto de corte optimo con una sensibilidad de 0,975 se obtuvo en el punto de corte ≥21. El área bajo la curva ROC fue 0,976. Conclusiones: El Índice de Mannheim demostró ser un buen predictor de mortalidad, estableciéndose que el mejor punto de corte es ≥21 para aumentar la sensibilidad al 97,5% a fin de evitar la pérdida de casos detectados por el Índice.
Asociación entre síndrome de caídas y síntomas depresivos en adultos mayores de once comunidades altoandinas del Perú 2013-2017
Authors: Casahuaman-Orellana Lucía , Runzer-Colmenares Fernando M. , Parodi José F.
Published: April 2019

Objetivo: Determinar si existe asociación entre el síndrome de caídas y la presencia de sintomatología depresiva en adultos mayores de once comunidades altoandinas, entre los años 2013 al 2017. Material y métodos: Estudio retrospectivo, analítico realizado en una muestra de pobladores de 60 años o más residentes de las siguientes localidades: La Jalca, Leimebamba (Amazonas), Llupa, San Pedro de Chaná, Atipayan (Áncash), Pampamarca (Huánuco), Ayahuanco  (Ayacucho),  Paucarcolla  (Puno),  Vilca  (Huancavelica),  Viñac  (Lima)  y  Chacapampa (Huancayo). Se utilizó un instrumento basado en datos generales del paciente, antecedentes patológicos de importancia y examen físico. Resultados: Se entrevistó un total de 411 participantes; 65,94% de los cuales eran de sexo femenino y   65,45% vivían en una zona rural. Un 35,23% del total de caídas ocurrió a   consumidores de alcohol; se comprobó un menor promedio de rendimiento físico y de alcance funcional en pacientes con historia de caídas frecuentes y un 48,48% de los mismos tenían sintomatología depresiva. Conclusiones: Los pacientes con síntomas depresivos tienen 1,62 veces más posibilidades de sufrir caídas en su actividad cuotidiana.
As narrativas históricas comparadas sobre a Questão do Amapá
Authors: Oliveira Moreira Danilo Sorato
Published: April 2019

O artigo tem por objetivo apresentar as narrativas históricas comparadas sobre a Questão do Amapá em suportes acadêmicos e didáticos. A metodologia pauta-se no método comparativo em história, o qual se analisa as possibilidades de características das linguagens históricas. A hipótese é que as narrativas históricas podem apresentar as características de arquétipo, estereótipo, silêncio e esquecimento. O resultado é que as narrativas acadêmicas negam a hipótese, pois elas revelam a preocupação em valorizar personagens históricos marginalizados, silenciados e esquecidos pela historiografia anterior aos século XXI. Também, as narrativas didáticas, subdivididas em livros didáticos e paradidáticos, confirmam a hipótese inicial, porquanto elas se caracterizam pela aceitabilidade do arquétipo, estereótipo, silêncio e esquecimento. A conclusão é que as narrativas históricas comparadas são heterodoxas, diversas e plurais, possibilitando a utilização de diferentes linguagens históricas no Ensino de História.
“E o racismo no Vidigal?”: reflexões sobre a promoção da igualdade racial orientadas pelo ensino da história e da matemática a partir de recursos digitais
Authors: De Souza Vitor Leandro , Machado Danubia De Araujo
Published: April 2019

O texto relata a experiência de ensino, desenvolvida com a turma de 8º ano do Ensino Fundamental,durante a Mostra Anual de Atividades promovida pelo Colégio Stella Maris, instituição confessional da rede privada de ensino do Rio de Janeiro. Por meio dos trabalhos desenvolvidos buscamos criar espaços de discussão sobre a discriminação racial e as diferentes dimensões que perpassam a temática do racismo. Para tal, utilizamos conteúdos ministrados nas aulas de História e Matemática sob uma perspectiva interdisciplinar e atenta a uma educação para a promoção da igualdade étnico-racial.
História e memória em movimento: escravatura, educação e (anti-)racismo em Portugal
Authors: Araújo Marta , Rodrigues Anabela
Published: April 2019

O estudo do ensino oficial da história tem sido privilegiado na análise das narrativas sobre identidade nacional e raça, dado que as diretrizes curriculares e os livros didáticos sancionados pelo Estado espelham as concepções consensualizadas pelas elites académicas e políticas. Neste artigo, centramos–nos no ensino da história da escravatura em Portugal para analisar a despolitização deste processo histórico e a forma como é trivializada a sua relação com o racismo contemporâneo. Adicionalmente, face à resistência dos decisores políticos em aceitar a necessidade de se repensar o ensino da história, analisamos a emergência de iniciativas de educação informal dos movimentos sociais que procuram manter viva a memória histórica das populações racializadas, designadamente um projeto de Teatro de Oprimido, o Laboratório Ami-Afro, que tem sido desenvolvido na área metropolitana de Lisboa para abordar a relação entre raça, história, identidade e pertença nacional.
Dialogando com os indígenas sobre a lacuna da fala indígena nos livros didáticos.
Authors: Mioto Luis Henrique , Pereira Danielle Krislaine , Noda Marisa
Published: April 2019

A Lei 11.645/2008, que inclui no currículo oficial da rede de ensino a obrigatoriedade da temática História e Cultura Afro-Brasileira e Indígena, induz a pressupor que ocorreram mudanças na abordagem que a temática indígena recebe nos Livros Didáticos. Porém, o fato é que ainda há muito a fazer para obter uma aprendizagem mais significativa sobre povos indígenas. Nessa perspectiva, a instituição escolar é considerada uma aliada essencial para combater as ideias e atos preconceituosos e o Livro Didático é um instrumento importante nesse processo. Como, então, avançar na direção de um ensino/aprendizagem mais significativo sobre as sociedades indígenas? Neste artigo, analisamos alguns Livros Didáticos que abordam a temática indígena e, também, as falas dos indígenas de Terras Indígenas do Paraná e Santa Catarina que entrevistamos, o que nos mostrou novos caminhos em prol de uma educação mais potente sobre a sociedade indígena.
Artisanal fishery off Fernando de Noronha Archipelago (PE)
Authors: DOMINGUEZ Paloma Sant'Anna , ZEINEDDINE Gabriela Campos , ROTUNDO Matheus M. , BARRELLA Walter , RAMIRES Milena
Published: April 2019

Artisanal fishing is one of the main economic activities of Brazilian fishing communities and major source of animal protein for many families. These communities living in direct contact with the natural environment and economically dependent on natural resources can provide important information for the design of conservation and management proposals aimed at sustainability. Thus, the aim of this study was to characterize artisanal fisheries and socio-economic aspects of artisanal fishermen of Fernando de Noronha/PE. Data were collected through semi-structured interviews and analyzed qualitatively and quantitatively. 62 fishermen were interviewed and the results showed that artisanal fishing is practiced for own consumption or as a source of income. epending on the priority areas for conservation, fishing area is one of the biggest conflicts recorded in the archipelago. In the search for supplementary income, parallel activities, especially related to tourism, has been developed. The ââ‚¬Âcorricoââ‚¬Â is the most used gear and has low environmental impact, and yellowfin tuna (Thunnus albacares) and the black jack (Caranx lugubris) are the species more caught species. Larger and more powerful vessels allow fishing in more remote locations, and not using ice on fish conservation was evident. Data indicate the importance of developing a plan for shared management of resources, resulting in the appreciation of artisanal fishermen and the sustainability of fisheries.
THE RECOMMENDATION OF SPACE LAY OUT ON CHILDREN AUTIS SCHOOL IN SURAKARTA
Authors: Sugito Musyawaroh , Singgih Edi Pramono , Sumaryoto Sumaryoto , Daryanto Tri Joko
Published: April 2019

The number of autism sufferers worldwide is increasing, but not yet followed by optimal handling. The cost of autism therapy is unaffordable by the general public because of the need for a specific and expensive container. Need to improve the quality of handling, especially in space for activities that contribute to the process of autism therapy.

In this study, an evaluation of the autism school in Surakarta and surrounding areas and made recommendations for solutions to the existing problems. The method used is qualitative rationalistic with post-occupancy indicative evaluation. Data obtained from field observation of research object, interview with related parties, and literature study. The data obtained is processed by emphasizing the meaning of empiri, understanding and intellectual ability to argue logically with supported empirical data and relevant theory. From the results of these evaluations, prepared spatial planning recommendations based on design criteria that are positively oriented towards increasing autism independence. From the results of the study known that the existing space can be used quite well, although technically inadequate, need improvement in order to function more optimally. The results of this study are expected to be used as a reference for autism school planning in the future.
THE STRATEGY OF APPLYING AIR ELEMENT FOR BRUMBUN SPRING TOURISM DEVELOPMENT DESIGN IN LAMONGAN
Authors: Yani Ahmad , Setyaningsih Wiwik , Marlina Avi
Published: April 2019

Brumbun hot springs which located in Lamongan regency has the potential of hot springs that emerge from the bowels of the earth so it will never be running out. The lack of attention from the government and communities make the condition of the tourist attractions of Brumbun hot springs becomes inaccessible and might causes damage for it’s existing and natural facilities. Besides, the lack of activities variant also makes less visitors. With the support of the regency government through spatial and regional plans, it is designed a development of natural attractions in order to improve the existence of a tourist attraction and the optimization of Brumbun’s natural potential. The method used is descriptive qualitative method with case study through stages of idea exploration, data collection through observation, interview, and ecological architecture literature, then through analysis phase with precedent study and supporting data consisting of physical condition of tourist object and government regulations related to tourism object development. The result of the analysis is in the form of four applied elements of wind as an ecological architectural aspect of the building, ie roof pond with open pond system, nako rooster, vertical garden with structural media, and cross ventilation.
VIRTUAL REALITY AS A REPRESENT OF SPATIAL PERCEPTION OF MAIN CHAPEL ROOM AT THE CHURCH OF LIGHT
Authors: Putro Hendro Trieddiantoro
Published: April 2019

The research focused on the Virtual Reality in order to represent spatial perception. The research object was a Virtual Reality simulation of Main Chapel at The Church of Light. There was 9 spatial perception category to describe Main Chapel at The Church of Light that founded from literature study. The research used a virtual reality simulation and a semantic differential questionnaire. There are 40 students joined the research. They divided into 2 groups of architectural background groups and non-architectural background groups. They join the virtual reality simulation then tested with a semantic differential questionnaire. The research concluded with the effectiveness of Virtual Reality. The spatial perception of the main chapel at The Church of Light can be represented using Virtual Reality simulation. According to 7 spatial perception category that is represented, Virtual Reality can be categorized as an effective medium to representing spatial perception. Moreover, analyze results to6 pairs word that relate to 2 perception category that not in accordance with the  literature study, specifically to the darkness and detail of the object. This could happen because of a lack of quality in Virtual Reality  simulation product. The lack that produced from the low contrast effect and unmatched material reflection or miss match with the real condition.
A STUDY ON SPACE PATTERN AND TRADITIONAL HOUSE OF PENGLIPURAN VILLAGE
Authors: Sudarwani Margareta Maria , Priyoga Iwan
Published: April 2019

Penglipuran Traditional Village is a traditional settlement in Bali which has an attractive space pattern seen from the order of the spatial pattern that is typical of the cultural activities of its people. The village is located at a distance of 45 km from Denpasar and 5 km from the capital city of Bangli Regency. The aim of the study was to find out the concept of traditional patterns of space and houses applied in Penglipuran Village, as a basis for researching traditional Balinese architecture. This research was conducted with qualitative descriptive method and case study approach. Penglipuran Village as a settlement has a space pattern which is divided into 3 (three) spatial arrangements based on the Tri Mandala concept consisting of: 1) Main Mandala (Pura); 2) Madya Mandala (Residence); 3) Nista Mandala (Tomb). The condition of the Penglipuran Traditional Village as a traditional mountain village shows one thing that stands out, namely the spread of settlement patterns tend to be linear because they are in mountainous areas. Penglipuran Bali Traditional House is an order of cultural result of the cultural mindset of the ancestors of the Penglipuran community in organizing an area well and upholding ancestral customs and striving to maintain the order well, neatly organized concept and sustainable nature and the surrounding environment.
Aliran Modal dan Nilai Tukar Riil: Kasus di “Lima Negara” Paling Rentan terhadap Krisis Selama Periode 2006-2013
Authors: Yusra Tasya Shabrina , Safuan Sugiharso
Published: April 2019

Penelitian ini menganalisis pengaruh lalu lintas modal terhadap nilai tukar di negara Brazil, India, Indonesia, Afrika Selatan, dan Turki. Kelima negara ini disebut sebagai “The Fragile Five” karena  banyaknya investor asing yang menguasai investasi domestik sehingga rentan terjadinya lalu lintas modal yang masuk dan keluar secara tiba-tiba.  Dengan menggunakan data selama periode 2006 sd 2013, hasil estimasi dengan menggunakan methode  data panel dinamik hasil penelitian ini menunjukkan bahwa capital flow yang bersumber dari  investasi portfolio merupakan jenis investasi yang memberikan pengaruh paling cepat dan besar terhadap nilai tukar.
THE TEACHING SPEAKING BY USING DISCUSSION METHOD TO INCREASING ORAL PROFICIENCY IN THE REKAYASA PERANGKAT LUNAK (RPL) OF ELEVENTH CLASS AT SMKN I LABANG- BANGKALAN
Authors: Yuswantoro Yuswantoro
Published: April 2019

Abstract: There are many classrooms activities that can be used by the teacher to get goal in teaching learning process, for example conversation, role-playing, discussion, debates, and games. All of them represent strategies for providing the imotional involvement necessary for authentic interaction in the classrooms. In the Rekayasa Perangkat Lunak(RPL) of Eleventh Class at SMKN I Labang- Bangkalan, one of method which has used the teacher that is discussion method. In this research, the researcher will discuss about the implementation of discussion method in that class and problems are faced of discussion method in that class.

In this study, the researcher tried to uses the theory of Sanjaya (2009) says that discussion method is very effective in helping students interact in class, learn to solve problems, answer questions, and improve student’s skills in english speaking. Then, researcher uses qualitative research study as a way to analyze the problems in applying these methods in class discussion. Observations and interviews are a research tool that will be uses to assist the research process. Total population in the Rekayasa Perangkat Lunak(RPL) of Eleventh Class at SMKN I Labang- Bangkalan consist of eight classes. However, in this study the researcher take sample only one class that is

From the result, writer finds that the application of discussion method which conducted in the classroom, there is one form of kinds discussion method which has effect to the others forms. That’s why in stating that the discussion method suitable in the uses of English teacher as a strategy in teaching and learning in the classroom.

Key words: Discussion Methods, Oral Proficiency
Using Media to Teach Different Learning Style in X and XII grade of Vocational School of Medical Nusantara Pamekasan
Authors: Khulufiah Elly Imrotul
Published: April 2019

The purpose of this article is knowing the use of media to teach different learning style of student in Vocational School of Medical Nusantara Pamekasan. In this article, the researcher got the data by doing direct interview with one of the English teacher in that school. Based on the data, this article explain about the use of media to teach students with differet learning style.
AN ANALYSIS OF MORAL VALUE IN 47 RONIN FILM
Authors: Johardianto Yohanes
Published: April 2019

We have been quite familiar with art and literary work in our life. They can be music, pain or literature. Literature is human expression consisting experience, consideration, feeling, idea, spirit, and conviction in form of concrete description that arouse attraction by using language. Literature is the result of ideas that belongs to human. The result of literary works can be written work , pictures or music. Literary works in written form include the novel, poem, short story, verse, etc. While in pictures form include painting, movie, photograph, etc. And literary works in the form of music include songs that every day we listen.

 

This thesis is an effort to analyze the moral values in the movie entitled “47 Ronin”, which might be very useful for the researcher himself, the readers, and other researchers who might need it as source of information. There are three research problems proposed from this “47 Ronin” analyzing film. They are: (1) The moral value found on this film, (2) The moral values conveyed on this film, (3) The messages that can be delivered to the viewers. Based on the result of this study the researcher found some moral values contained in the movie”47 Ronin”, such as: friendliness, tolerance and acceptance, self-confidence, determination, honesty, positive attitude, patience, initiative and courage, motivation, self respect.  The researcher hopes those values would be useful for the Viewers and the readers of this thesis as their life guidance to be better persons.

 

Keywords: Moral Value, “47 Ronin” Film
Robust Uncertainty Quantification Through Integration of Distributed-Gauss-Newton Optimization With a Gaussian Mixture Model and Parallelized Sampling Algorithms
Authors: Gao Guohua , Vink Jeroen C. , Chen Chaohui , Araujo Mariela , Ramirez Benjamin A. , Jennings James W. , Khamra Yaakoub El , Ita Joel
Published: April 2019

Uncertainty quantification of production forecasts is crucially important for business planning of hydrocarbon–field developments. This is still a very challenging task, especially when subsurface uncertainties must be conditioned to production data. Many different approaches have been proposed, each with their strengths and weaknesses. In this work, we develop a robust uncertainty–quantification work flow by seamless integration of a distributed–Gauss–Newton (GN) (DGN) optimization method with a Gaussian mixture model (GMM) and parallelized sampling algorithms. Results are compared with those obtained from other approaches.

Multiple local maximum–a–posteriori (MAP) estimates are determined with the local–search DGN optimization method. A GMM is constructed to approximate the posterior probability–density function (PDF) by reusing simulation results generated during the DGN minimization process. The traditional acceptance/rejection (AR) algorithm is parallelized and applied to improve the quality of GMM samples by rejecting unqualified samples. AR–GMM samples are independent, identically distributed samples that can be directly used for uncertainty quantification of model parameters and production forecasts.

The proposed method is first validated with 1D nonlinear synthetic problems with multiple MAP points. The AR–GMM samples are better than the original GMM samples. The method is then tested with a synthetic history–matching problem using the SPE01 reservoir model (Odeh 1981; Islam and Sepehrnoori 2013) with eight uncertain parameters. The proposed method generates conditional samples that are better than or equivalent to those generated by other methods, such as Markov–chain Monte Carlo (MCMC) and global–search DGN combined with the randomized–maximum–likelihood (RML) approach, but have a much lower computational cost (by a factor of five to 100). Finally, it is applied to a real–field reservoir model with synthetic data, with 235 uncertain parameters. A GMM with 27 Gaussian components is constructed to approximate the actual posterior PDF. There are 105 AR–GMM samples accepted from the 1,000 original GMM samples, and they are used to quantify the uncertainty of production forecasts. The proposed method is further validated by the fact that production forecasts for all AR–GMM samples are quite consistent with the production data observed after the history–matching period.

The newly proposed approach for history matching and uncertainty quantification is quite efficient and robust. The DGN optimization method can efficiently identify multiple local MAP points in parallel. The GMM yields proposal candidates with sufficiently high acceptance ratios for the AR algorithm. Parallelization makes the AR algorithm much more efficient, which further enhances the efficiency of the integrated work flow.