bluuebunny/crossref_metadata_2025 huggingface dataset:
Contemporary Management of Patients with Stable Ischemic Heart Disease
Authors: Lyubarova Radmila , Schulman-Marcus Joshua , Boden William E.
Published: February 2019

The overall goals of therapy for patients with stable ischemic heart disease are to minimize the likelihood of death while maximizing health and function. Initial risk assessment with noninvasive testing is indicated to determine whether invasive evaluation is needed in addition to medical therapy. All patients with stable ischemic heart disease need optimal medical therapy, which includes risk factor management with lifestyle modifications and pharmacologic therapy. First-line pharmacologic therapy is focused on preventing myocardial infarction and death with antiplatelet agents, lipid-lowering therapy, and antihypertensive therapies. In addition, antianginal therapy and anti-ischemic therapy are indicated to alleviate symptoms, reduce ischemia, and improve quality of life. The commonly used antianginal agents include nitrates, beta-blockers, calcium channel blockers, and ranolazine. When medical therapy is not adequate to relieve angina, revascularization with percutaneous coronary intervention or coronary artery bypass grafting is indicated. We review the indications and evidence for antianginal agents and other therapies for angina.
Ischemic Heart Disease in Women
Authors: Waheed Nida , Kaufman Nicholas , Seawright Jonathon , Park Ki
Published: February 2019

Cardiovascular disease is a leading cause of morbidity and death among women. Our knowledge of ischemic heart disease has grown tremendously over the past few decades as sex differences in prevalence, presentation, and pathophysiology are increasingly being recognized. Women with ischemic heart disease have less coronary atherosclerosis than men. Coronary endothelial dysfunction and microvascular disease have been proposed as important mechanisms that contribute to the cause and prognosis of ischemic heart disease in women. This review outlines sex-specific issues in ischemic heart disease, including prevalence, prognosis, pathophysiology, traditional and nontraditional risk factors, screening, and diagnostic testing, as well as management strategies.
Vernacular Song and the Folkloric Imagination at the Fin de Siècle
Authors: Cole Ross
Published: February 2019

This article foregrounds discrepancies between vernacular singing in England and the work of London’s Folk-Song Society during the 1890s. Figures such as Lucy Broadwood, Kate Lee, and Hubert Parry acted as gatekeepers through whom folk culture had to pass in order to be understood as such. Informed by colonialist epistemology, socialist radicalism, and literary Romanticism, what may be termed the “folkloric imagination” concealed the very thing it claimed to identify. Folk song, thus produced, represents the popular voice under erasure. Situated as the antidote to degeneration, burgeoning mass consumer culture, and escalating urbanization, the folk proved to be the perfect tabula rasa upon which the historiographical, political, and ethnological fantasies of the fin de siècle could be inscribed. Positioned as a restorative bulwark against the shifting tides of modernity, the talismanic folk and their songs were temporal anachronisms conjured up via the discursive strategies that attempted to describe them. Increased attention should hence be paid to singers such as Henry Burstow and the Copper brothers of Rottingdean in order to rescue their histories from the conceptual apparatus of folk song.
III. From Single-Stranded to Braided Histories of Race and Ethnicity in the Southern California Quarterly
Authors: Hunter Yesenia Navarrete
Published: February 2019

This article finds an emphasis on “foreignness” in early SCQ articles on the Asian American experience. Early twentieth-century authors explored changing racial identities. By the 1960s, articles in the Southern California Quarterly were comparing the evolving racial identities of various racial groups and exploring the transnational stigmatization of immigrant race and culture. The “new” social history shifted focus to the powerless and the analysis of racial power structures. By the 1990s authors were utilizing a relational analysis of multiple racial and cultural groups’ experience. Recent scholarship has examined oppressed communities taking agency and challenging power structures in multilayered contexts, pointing the way to the braided interactions of racialized groups.
I. Digging through the Old and Unearthing the New
Authors: Blanchard Corey D.
Published: February 2019

Corey D. Blanchard’s essay on Native Americans during the mission period (1769–1833) finds early articles focused on Euro-American pioneers to the near exclusion of the Indigenous population of Southern California. When they do appear in early articles they are treated more as obstacles than as sentient beings. Racial bias or condescension is evident in articles published as late as 1953 and research was limited to Euro-American sources. Articles reflecting the New Social History turn of the late 1950s-1960s; they analyzed quantifiable evidence to reconstruct the daily life of Mission Indians. The cultural history turn of the 1990s brought analyses of material culture into the pages of the SCQ. New levels of analysis and computerized data emerged in the current decade, uncovering individual lives and Native American agency into a complex understanding of California’s Indigenous history, while early articles continue to serve as data sources and indicators of Euro-American/Native American relationships.
Dexamethasone during pregnancy impairs maternal pancreatic β-cell renewal during lactation
Authors: Teixeira Caio Jordão , Santos-Silva Junia Carolina , de Souza Dailson Nogueira , Rafacho Alex , Anhe Gabriel Forato , Bordin Silvana
Published: February 2019

Pancreatic islets from pregnant rats develop a transitory increase in the pancreatic β-cell proliferation rate and mass. Increased apoptosis during early lactation contributes to the rapid reversal of those morphological changes. Exposure to synthetic glucocorticoids during pregnancy has been previously reported to impair insulin secretion, but its impacts on pancreatic islet morphological changes during pregnancy and lactation have not been described. To address this issue, we assessed the morphological and molecular characteristics of pancreatic islets from rats that underwent undisturbed pregnancy (CTL) or were treated with dexamethasone between the 14th and 19th days of pregnancy (DEX). Pancreatic islets were analyzed on the 20th day of pregnancy (P20) and on the 3rd, 8th, 14th and 21st days of lactation (L3, L8, L14 and L21, respectively). Pancreatic islets from CTL rats exhibited transitory increases in cellular proliferation and pancreatic β-cell mass at P20, which were reversed at L3, when a transitory increase in apoptosis was observed. This was followed by the appearance of morphological features of pancreatic islet neogenesis at L8. Islets from DEX rats did not demonstrate an increase in apoptosis at L3, which coincided with an increase in the expression of M2 macrophage markers relative to M1 macrophage and T lymphocyte markers. Islets from DEX rats also did not exhibit the morphological characteristics of pancreatic islet neogenesis at L8. Our data demonstrate that maternal pancreatic islets undergo a renewal process during lactation that is impaired by exposure to DEX during pregnancy.
Progesterone alters the bovine uterine fluid lipidome during the period of elongation
Authors: Simintiras Constantine A , Sánchez José M , McDonald Michael , Lonergan Pat
Published: February 2019

Successful bovine pregnancy establishment hinges on conceptus elongation, a key reproductive phenomenon coinciding with the period during which most pregnancies fail. Elongation is yet to be recapitulated in vitro, whereas in vivo it is directly driven by uterine secretions and indirectly influenced by prior circulating progesterone levels. To better understand the microenvironment evolved to facilitate this fundamental developmental event, uterine fluid was recovered on Days 12–14 of the oestrous cycle – the window of conceptus elongation initiation – from cycling heifers supplemented, or not, with progesterone. Subsequent lipidomic profiling of uterine luminal fluid by advanced high-throughput metabolomics revealed the consistent presence of 75 metabolites, of which 47% were intricately linked to membrane biogenesis, and with seven displaying a day by progesterone interaction (P ≤ 0.05). Four metabolic pathways were correspondingly enriched according to day and P4 – i.e. comprised metabolites whose concentrations differed between groups (normal vs high P4) at different times (Days 12 vs 13 vs 14). These were inositol, phospholipid, glycerolipid and primary bile acid metabolism. Moreover, P4 elevated total uterine luminal fluid lipid content on Day 14 (P < 0.0001) relative to all other comparisons. The data combined suggest that maternal lipid supply during the elongation-initiation window is primarily geared towards conceptus membrane biogenesis. In summary, progesterone supplementation alters the lipidomic profile of bovine uterine fluid during the period of conceptus elongation initiation.
La emergencia del pensamiento
Authors: Rengifo Carpintero Jhon Alexis
Published: February 2019

El siguiente escrito es una reflexión crítica del modo en que hoy, en el mundo, se concibe el ejercicio del investigar institucional, en oposición al quehacer del investigador visceral, desde el sentir, el vivir, el experimentar, desde lo otro, con lo otro, para lo otro: muerte de todo pensar serio, facultad de juzgar castrada. Paradójicamente, la primera acción se lleva a cabo, terriblemente, en oposición, a todo proceso de reflexión orgánico, vivo, sentido, entre una alteridad viviente y un academicismo formal comercial, evidentemente mercantil: hacer investigación para puntuar en los registros calificados de toda Universidad. Hoy, la universidad es una empresa de compra y venta de saber. Todo saber se ha vuelto prostitución legitimada de conocimiento
Gobernanza, gobernabilidad y conflicto como indicadores en la construcción de paz
Authors: Rodríguez Vásquez María Eugenia
Published: February 2019

Colombia en los últimos veinte años ha realizado tres intentos de consolidación de la paz: dos fallidos, un proceso y un escenario de conflicto bajo la lógica win - lose; y un proceso exitoso en su formulación más a la espera de resultados en su implementación; por ello, es importante analizar comparativamente las acciones en cuanto a resolución de los conflictos armados por parte del gobierno en el periodo entre 1997 y 2017. Siendo pertinente observar los gobiernos de Pastrana (1998 - 2002), Uribe (2002 - 2010) y Santos (2010) bajo tres conceptos: gobernanza, gobernabilidad, y conflicto, con respecto a la construcción de paz.
Evolución en los principios de contabilidad de la deuda pública y sus impactos en la gestión del endeudamiento público en América Latina
Authors: Bautista Jairo Alonso , Reyes Didier Antonio
Published: February 2019

El ambiente de “normalidad” o de superación de la problemática de ladeuda pública en los países latinoamericanos, obedece no solo (y quizás no principalmente) a la aplicación de las medidas de ajuste desde los años 80, sino al uso de nuevas formas de medir, valorar y representar la deuda pública. El documento presenta los principales cambios que se han dado en los manuales de gestión de la deuda pública, específicamente en el ámbito de la contabilidad de la deuda pública y que se han adoptado en diferente medida por parte de los países de la región.El objetivo del documento es presentar un análisis sobre las formas específicas en que las orientaciones en materia de contabilidad de la deuda han incidido en los indicadores de deuda, y por ende han reorientado el marco de gestión del endeudamiento público. De otra parte, estos cambios han sido promovidos por los Organismos Financieros Internacionales (OFI), como parte de las recomendaciones que ellos buscan implementar en los diversos países en materia de gestión de la deuda.Por lo anterior, se recurre a una presentación analítica sobre los principales lineamientos que dominan la contabilización de la deuda pública en los sistemas de contabilidad fiscal en los últimos treinta años, la forma en que estos han evolucionado y las consecuencias potenciales sobre los indicadores de deuda.
Análisis de las diferencias en la base contable y en la base fiscal por el reconocimiento y medición de los inventarios bajo NIIF. Aplicación del impuesto diferido
Authors: Amaya Osorio Ciro Alfonso
Published: February 2019

Dada la importancia de los inventarios en las empresas ya sean comerciales, de servicios, extractivas o de transformación y su efecto en los estados financieros, es importante entender el reconocimiento y medición de la base contable bajo los nuevos marcos normativos, y la base fiscal de acuerdo con la regulación tributaria para determinar el costo de los inventarios.Las Normas Internacionales de Información Financiera (NIIF), marcan la independencia entre la normatividad contable y fiscal, con la reforma tributaria de la Ley 1819 de diciembre del año 2016, la administración tributaria expide las bases fiscales que se deben tener en cuenta a partir del 1 de enero del año 2017, armonizando la tributación con la técnica contable y estableciendo los lineamientos para su conciliación en los casos en que el tratamiento fiscal difiera de la técnica contable.El documento realiza un estudio de las diferencias entre el reconocimiento y medición de los inventarios de acuerdo con las NIIF y la normatividad tributaria, así como las excepciones fiscales frente a las alternativas de medición de la técnica contable y la aplicación del impuesto diferido, de acuerdo con las NIIF cuando estas así lo requieran.
ACTITUD HACIA EL DOPAJE Y PERFECCIONISMO EN ATLETAS PROFESIONALES DE FÚTBOL, FÚTBOL SALA Y BALONCESTO EN COSTA RICA
Authors: Salas-Ramírez Karen , Rojas-Valverde Daniel
Published: February 2019

El propósito del presente estudio fue evaluar la actitud hacia el dopaje y su relación con el perfeccionismo en atletas profesionales de tres deportes de equipo en Costa Rica. Mediante cuestionarios se evaluó estos dos factores en 217 atletas profesionales mayores de 18 años de los cuales 121 eran hombres y 96 mujeres, inscritos en el campeonato de máxima categoría de Costa Rica durante las temporadas 2013 y 2014 en las disciplinas de fútbol, fútbol sala y baloncesto. Los hombres presentan una actitud significativamente (p=0.001) más positiva hacia el dopaje y son más perfeccionistas (p= 0.028) en su desempeño deportivo que las mujeres. Existe una correlación positiva significativa (p= 0.000) entre la actitud hacia el dopaje y el perfeccionismo en el deporte. A modo general, los participantes en este estudio tienen una actitud negativa hacia el dopaje. Tanto en la actitud hacia el dopaje como en el perfeccionismo no se encontraron diferencias entre deportes ni en la interacción deporte-sexo. La relación significativa encontrada nos sugiere que un atleta con estas características perfeccionistas podría estar más propenso a incurrir en dichas prácticas.
REGENERASI DAN PERBANYAKAN RUMPUT LAUT Kappaphycus alvarezii HASIL TRANSFORMASI GEN SUPEROKSIDA DISMUTASE (MaSOD)
Authors: Suryati Emma , Triana Hidayah , Widiastuti Utut , Tenriulo Andi
Published: February 2019

Transformasi gen superoxide dismutase (MaSOD) pada rumput laut Kappaphycus alvarezii menggunakan Agrobacterium tumefacient telah dilakukan secara in vitro. Transformasi gen MaSOD ke dalam genom rumput laut diharapkan dapat mengurangi cekaman oksidatif terutama yang disebabkan oleh perubahan suhu, salinitas, dan cemaran logam di perairan. Penelitian ini bertujuan untuk regenerasi rumput laut hasil introduksi gen MaSOD dan non-transgenik pada labu kultur. Regenerasi dan perbanyakan rumput laut hasil transformasi gen MaSOD dilakukan di laboratorium pada labu kultur yang diletakkan dalam “culture chamber” yang dilengkapi dengan aerasi menggunakan media kultur yang diperkaya dengan pupuk PES, Grund, Conwy, dan SSW sebagai kontrol, salinitas 20, 25, 30, 35, dan 40 g/L, pH 4, 5, 6, 7, dan 8. Intensitas cahaya antara 500-2.000 lux dengan fotoperiode terang dan gelap 8:16; 12:12; dan 16:8. Untuk merangsang pertumbuhan eksplan dilakukan pemeliharaan dengan penambahan hormon tumbuh IAA dan BAP dengan perbandingan 1:1, 1:2, dan 2:1. Penelitian dilakukan secara bertahap. Evaluasi transgenik dilakukan menggunakan teknik PCR. Hasil penelitian memperlihatkan bahwa sintasan yang paling tinggi diperoleh menggunakan media PES (94%), salinitas 30 g/L (90%), pH 7 (96%), intensitas cahaya pada 1.500 lux (80%), fotoperiode 12:12 (84%), komposisi ZPT dengan campuran IAA dan BAP dengan perbandingan 2:1. Hasil analisis PCR memperlihatkan K. alvarezii transgenik putatif mengandung transgen MaSOD sebanyak 78% dari hasil transformasi.Superoxide dismutase transformation (MaSOD) gene of seaweed Kappaphycus alvarezii mediated by Agrobacterium tumefacient has been successfully done in vitro. MaSOD genes introduced into the seaweed genome is expected to reduce oxidative stress caused by environmental conditions such as changes in temperature, salinity and metal contamination of the water. This study aimed to regenerate both the MaSOD transformed seaweed and non-transgenic in a culture flask. Regeneration and multiplication of those seaweed were conducted in a laboratory flask cultures placed in a “culture chamber” which was aerated and enriched with fertilizers PES, Grund, Conwy, and SSW as a control, salinity 20, 25, 30, 35, and 40 g/L, pH: 4, 5, 6, 7, and 8. the light intensity between 500-2000 lux, with light and dark photoperiod 8:16; 12:12; and 16:8. To stimulate the growth of explants the addition of growth hormone IAA and BAP with ratios of 1:1, 1:2 and 2:1 were performed. This study was a multiple-step of process, by which transgenic explants was identified by PCR method. The results showed that the highest survival rate was obtained using media PES (94%), salinity 30 g / L (90%), pH= 7 (96%), the intensity of light at 1500 lux (80%), photoperiod= 12: 12 (84%), and ratio of IAA and BAP 2: 1. The results of PCR analysis showed the putative K. alvarezii transgenic MaSOD was 78% of explants.
STIMULASI PERTUMBUHAN JUVENIL ABALON, Haliotis squamata DENGAN PEMBERIAN HORMON REKOMBINAN IKAN rElGH
Authors: Khotimah Fitriyah Husnul , Permana Gusti Ngurah , Rusdi Ibnu , Susanto Bambang , Alimuddin Alimuddin
Published: February 2019

Masalah yang paling utama dalam budidaya abalon tropis adalah pertumbuhan yang lambat. Penggunaan rElGH (recombinant giant grouper, Epinephelus lanceolatus growth hormone) untuk menstimulasi pertumbuhan beberapa spesies ikan sudah dilakukan. Penelitian ini bertujuan untuk menguji akselerasi pertumbuhan juvenil abalon tropis, Haliotis squamata setelah diberi perlakuan perendaman hormon rekombinan ikan kerapu kertang, Epinephelus lanceolatus pada frekuensi yang berbeda. Ada empat perlakuan frekuensi perendaman rElGH yaitu 4, 9, 16 kali, dan tanpa perendaman (kontrol). Masing-masing perlakuan diulang tiga kali. Perendaman dilakukan selama tiga jam, dengan interval waktu empat hari. Kepadatan abalon tropis 100 ekor/L air laut yang mengandung 30 mg rElGH. Wadah untuk perendaman berupa beaker glass yang dilengkapi dengan aerasi. Penelitian dilakukan selama tujuh bulan. Hasil penelitian menunjukkan bahwa abalon tropis yang direndam rElGH dengan frekuensi empat kali menghasilkan pertumbuhan bobot tubuh dan panjang cangkang tertinggi dan berbeda nyata dengan perlakuan lainnya (P<0,05). Sintasan abalon tropis yang diberi perlakuan perendaman hormon rElGH lebih tinggi dibandingkan perlakuan kontrol.The most crucial problem in tropical abalone aquaculture is the slow growth of the species. Studies investigating the use of rElGH (recombinant giant grouper, Epinephelus lanceolatus growth hormone) for promoting growth have been performed in various species. This research aimed to examine the growth acceleration of tropical abalone, Haliotis squamata juvenile after being treated in different immersion frequencies of recombinant giant grouper, Epinephelus lanceolatus growth hormone (rElGH). There were four treatments of rElGH immersion frequency: 4, 9, 16 times and without rElGH immersion (control). Each treatment was performed in triplicates. Immersion was performed for 3 hours, at 4-day intervals and a density of 100 tropical abalones in 1 L seawater containing 30 mg rElGH. Immersion was conducted in a beaker glass supplied with oxygen. The results indicated that rElGH immersion for total of 4 times showed significantly higher (P<0.05) body weight and shell length of tropical abalone compared to other treatments. The Survival of tropical abalone treated with rElGH was also significantly higher than control.
Performance analysis of global local mean square error criterion of stochastic linearization for nonlinear oscillator
Authors: Hung Luu Xuan , Thang Nguyen Cao
Published: February 2019

The paper presents a performance analysis of global-local mean square error criterion of stochastic linearization for some nonlinear oscillators. This criterion of stochastic linearization for nonlinear oscillators bases on dual conception to the local mean square error criterion (LOMSEC). The algorithm is generally built to multi-degree of freedom (MDOF) nonlinear oscillators. Then, the performance analysis is carried out for two applications which comprise a rolling ship oscillation and two-degree of freedom one. The improvement on accuracy of the proposed criterion has been shown in comparison with the conventional Gaussian equivalent linearization (GEL).
A Latent-Dirichlet-Allocation Based Extension for Domain Ontology of Enterprise’s Technological Innovation
Authors: Zhang Qianqian , Liu Shifeng , Gong Daqing , Tu Qun
Published: February 2019

This paper proposed a method for building enterprise's technological innovation domain ontology automatically from plain text corpus based on Latent Dirichlet Allocation (LDA). The proposed method consisted of four modules: 1) introducing the seed ontology for domain of enterprise's technological innovation, 2) using Natural Language Processing (NLP) technique to preprocess the collected textual data, 3) mining domain specific terms from document collections based on LDA, 4) obtaining the relationship between the terms through the defined relevant rules. The experiments have been carried out to demonstrate the effectiveness of this method and the results indicated that many terms in domain of enterprise's technological innovation and the semantic relations between terms are discovered. The proposed method is a process of continuously cycles and iterations, that is the obtained objective ontology can be re-iterated as initial seed ontology. The constant knowledge acquisition in the domain of enterprise's technological innovation to update and perfect the initial seed ontology.
A Chi-square Distance-based Similarity Measure of Single-valued Neutrosophic Set and Applications
Authors: Ren Haiping , Xiao Shixiao , Zhou Hui
Published: February 2019

The aim of this paper is to propose a new similarity measure of singlevalued neutrosophic sets (SVNSs). The idea of the construction of the new similarity measure comes from Chi-square distance measure, which is an important measure in the applications of image analysis and statistical inference. Numerical examples are provided to show the superiority of the proposed similarity measure comparing with the existing similarity measures of SVNSs. A weighted similarity is also put forward based on the proposed similarity. Some examples are given to show the effectiveness and practicality of the proposed similarity in pattern recognition, medical diagnosis and multi-attribute decision making problems under single-valued neutrosophic environment.
Synthesis and characterization of silica nanoparticles from Vietnam
Authors: Quang Nguyen Duc Vinh , Vuong Le Dai , Alexandrov Olga Vladimirovna , Bulgakov Boris Igorevich
Published: February 2019

In the present study, silica (SiO2) nanoparticles were synthesized through the decomposition of silica sand in sodium hydroxide (NaOH) molten salt at 500°C under ultrasound waves. The proposed method manifested as a facile preparation technique with a relatively low reaction temperature, uniform dispersion of doping metal ions, an excellent control of stoichiometry and a remarkable chemical homogeneity. Moreover, the current research was aimed at expanding the use of local materials, such as carbonates, clay and silica sands. The structural and the microstructural characterizations of silica nanoparticles were performed using X-ray diffraction (XRD), scanning electron microscopy and transmission electron microscopy. It is evident from the XRD pattern that the fabricated material had a hexagonal crystal structure, which conforms to the shape of crystalline silica. The silica nanoparticles were spherical in shape with an average size of 10–50 nm that slightly depended on the annealing temperature.
Vajinal Doğum Sonrası Plasentanın Kendiliğinden Ayrılma Zamanının ve Bu Süreyi Etkileyen Faktörlerin Belirlenmesi
Authors: FARİSOĞLU Nihat , PİRİMOĞLU Zehra Meltem , ANĞIN Ali Doğukan , SAKİN Önder , ÇIKMAN Muzaffer Seyhan , DENİZLİ Ramazan
Published: February 2019

Amaç:
Bu çalışmanın amacı, vajinal doğum sonrası plasentanın kendiliğinden ayrılma
zamanını ve bu süreyi etkileyen faktörleri belirlemektir.Yöntem:
Çalışmamıza İstanbul Dr. Lütfi Kırdar Kartal Eğitim ve
Araştırma Hastanesi Kadın Hastalıkları ve Doğum kliniğine 01.03.2016-01.01.2017
tarihleri arasında vajinal doğum için başvuran 198 hasta dahil edildi. Vajinal
doğumu takiben plasentanın kendiliğinden ayrılması beklendi ve 5’er dakika
aralıklarla kontrol edildi. Bulgular:
Plasentanın ayrılma zamanı 11,69±6,09 dakika olarak tespit edildi. İndüksiyon
alan ve daha önce doğum yapmış hastalarda plasenta
ayrılma zamanının kısaldığı görüldü.
Hastaların %96’sının plasentasının ilk 20 dakika içerisinde ayrıldığı izlendi.
198 hastanın 5’inde plasenta 30 dakika içerisinde kendiliğinden ayrılmadı ve
elle halas edildi.

Sonuç:
Bu çalışmada plasentanın kendiliğinden ayrılma süresi 10-15 dk. aralığında
izlendi. Plasentanın kendiliğinden ayrılması için eşik değerin 20 dk olarak
tespit edilebileceği düşünüldü. İndüksiyon almak ve daha önce doğum yapmakta bu
süreyi kısaltan faktörler olarak tespit edildi.
Konjenital Kalp Hastalıklarında Respiratuar Sinsisyal Virus Proflaksisinde Uygulama Protokolünün Hasta Uyumu Üzerine Etkisi ve Klinik Sonuçları
Authors: TOSUN Öykü
Published: February 2019

Giriş: Palivizumab, yüksek riskli çocuklarda respiratuar
sinsisyal virüs (RSV) önlenmesinde iyi tolere edilen, güvenli bir monoklonal
antikordur. Hastaların zamanında ve tam doz proflaksi
alabilmeleri için anne ve babanın uyumu son derece önemlidir. RSV proflaksisinde hasta uyumunu ve klinik sonuçlarını değerlendiren
makaleler bulunmaktadır. Her kliniğin kendi takip ve uygulama protokolü
bulunmaktadır ancak kullanılan protokoller, hasta uyumu ve doz tamamlanması ile
ilgili bir çalışma bulunmamaktadır.Hastalar ve Yöntem: Ekim 2016-Mart 2018
tarihleri arasında çocuk kardiyoloji polikliniğinde RSV proflaksisi endikasyonu
almış hemodinamik olarak anlamlı KKH’na sahip 2 yaş altı toplam 60 hastaya ait
veriler çocuk kardiyoloji poliklinik ve servis kayıtlarından retrospektif
olarak incelendi.  2 farklı sezonda, proflaksi endikasyonu alan
ve 2 farklı protokol ile takip edilen hastalar uyum ve klinik sonuçlar
açısından birbiriyle karşılaştırıldı. Tam uyum, sezon boyunca 5 aylık dönemde,
30 gün aralarla en az 4 doz palivizumab uygulaması yapılması olarak tanımlandı.Bulgular:
Ekim 2016- Mart 2017 sezonunda, 5 aylık
dönemde uygulan ortalama doz 1 ± 0.2 doz idi ve tam hasta uyumu %10
olarak bulundu. Doz aralıkları 37.2 ± 6.15 gün olarak bulundu. 10 hastada (%
40) ASYE nedeniyle hastaneye yatış ve RSV izolasyonu mevcuttu. Ekim 2017-Mart
2018 sezonunda yapılan protokol değişikliği sonrası, hasta uyumu %100 olarak
değerlendirildi, ASYE nedeniyle acil servis başvurusu ve hastaneye yatış
gereksinimi tespit edilmedi.

Sonuç: Palivizumab
proflaksisinde doz tamamlanması ve aralığı uyumunu arttırmak RSV’ye bağlı
hastane yatışlarını önemli ölçülde azaltmaktadır. Detaylı ve iyi organize
edilmiş takip ve uygulama protokolleri hazırlanmak uyumu arttırmada son derece
önemlidir.
An Investigation of Thermal Comfort for Mold, Welding and Turning Technicians and the Effects on Performance in Naturally Ventilated Area
Authors: SÖKMEN Kemal Furkan
Published: February 2019

In
this study, thermal comfort measurements were made for mold, welding, and
turning technicians in naturally ventilated industrial establishments.
Metabolic rates were determined as 100 W/m2 for welding and turning
and 190 W/m2 for mold technicians. The clothing insulation factor was
calculated as 0.68 clo. The measurements were done  in 3 different
companies on 17-19 July 2017 during working hours without stop
working. In terms of PMV findings, it was determined that the thermal
comfort conditions are not met according to the ASHRAE standard. As for
the WBGT value, it was determined that there was heat pressure on
17.07.2017 and there was no heat pressure on 18.07.2018 on all
the employees. On 19.07.2017, it was determined that there was a heat pressure
after 13:00 for mold technicians and after 17:00 for welding and turning
technicians. Calculated PMV values were compared with the survey results
and  ıt was determined that results were compatible with values. It
was made firm that people who were overweight and obese felt their
working environment warmer than normal
weight worker. The performance loss ratios which are
dependent on ambient temperature were calculated and compared with the
literature and was determined that they are compatible.
Comparison Of Reversible Image Watermarking Methods Based On Prediction-Errors
Authors: ALTINKAYA Emre , BARAKLI Burhan
Published: February 2019

This study compares two reversible image
watermarking algorithms applied to a digital image. The first algorithm is a
method based on adaptive watermarking of prediction-errors. With this method,
as in the existing reversible image watermarking methods, pixels are embedded
in two different ways according to the values of prediction-errors instead of
applying the same watermarking algorithm to all pixels in the imageAccordingly,
the image pixels are divided into two blocks as uniform and non-uniform. The
watermarking capacity has been increased by embedding 2-bit to specific pixels
of uniform blocks and 1-bit to specific pixels of non-uniform blocks. The
second algorithm is a method based on interpolation errors. In this method,
interpolation error is utilized. The two methods compared with each other were
compared with the existing methods in the literature by using computer
simulations, and superior and weak aspects of the methods were determined.
Measuring the Change by Using Markov Chain Approach in Time-Dependent Transitions and a Real Data Application
Authors: POTAS Nihan , ATAKAN Cemal
Published: February 2019

In this study, the use of the Markov chain to measure the change in
time-dependent transitions is emphasized. Contingency tables were used to
measure the time-dependent change of categorical data. Theoretically how to
apply the Markov chain in the log-linear model with the help of one-step or
higher-step transition matrices was demonstrated. In addition, the stationarity
approach and the assessment of the order of the chain were given as the
assumption of the model. In the real data application, 1217 undergraduate
students, studying in Faculty of Political Science, Engineering, Science
departments of Ankara University, were used. It was taken their cumulative
average grades for 4 years, average grades for 8 semesters, beginning in the
academic year 2013-2014.Whether the change in the success of the students is
measurable in 8 semesters and 4 years, has been investigated. According to the
results, before making any prediction: it concluded that one-step transition
probabilities are not stationary and the three-step transition matrix is the
second-order Markov Chain.
A Note On The Series Space |N ̅_p^θ |(μ)
Authors: GÖKÇE Fadime
Published: February 2019

The series space $\left\vert \bar{N}_{p}^{\theta }\right\vert\left( \mu \right) $ has recently been introduced and studied by Gökçe and Sarıgöl [1]. The
main purpose of this paper is to determine the  $\alpha-$, $\beta-$  and  $\gamma$_duals of the space  and to show that it is linearly isomorphic to the Maddox’s space  $l(\mu)$.
Conjugate mates for non-null Frenet curves
Authors: KELLECİ Alev
Published: February 2019

For each non-null Frenet curve \gamma in Minkowski 3-space, there exists a unique unit speed non-null curve tangentto the principal binormal vector field of \gamma. We briefly call this curve the conjugate mate of\gamma . The aim of thispaper is to prove some relationships between a non-null Frenet curve and its non-null conjugate mate.
Investigation of the Multiple Imputation Method in Different Missing Ratios and Sample Sizes
Authors: ALKAN Nesrin , ALKAN B. Baris
Published: February 2019

In many studies, missing data are the
real trouble to researchers. Because the statistical methods are designed for
complete data sets. Multiple imputation method is developed to solve the
missing data problem. The method is also used effectively in some useful
properties of the Bayes method. If there are missing values in the data set,
Bayesian method can be used to prevent the loss of information. In this study,
the performance of the multiple imputation method is evaluated by generating
survival data with different missing rates and different sample sizes. Also,
informative priors and multiple imputation method are used together to prevent
the missing information in the variable with missing value.
Afrikaans op Twitter in 'n wêrelddorp: 'n McLuhaniaanse perspektief
Authors: du Plessis D , du Plessis C
Published: February 2019

In die artikel word 'n kwalitatiewe navorsingsontwerp gevolg om die toepaslikheid van McLuhan en McLuhan (1988) se media-effekraamwerk in ŉ wêrelddorpkonteks te ondersoek. Die Afrikaanse aanlyn organisasie, Afrikaans.com, se Twitterprofiel, wat ten doel het om die Afrikaanse taal te bevorder, is as ŉ voorbeeld van ŉ wêrelddorp gebruik. Twitter verteenwoordig die digitale era oorwegend as 'n kommunikasie- en inligtingsmedium en vervul dus 'n belangrike rol in die media-ekologie wat by verdere beskrywing kan baat vind. Veral die sosiale media verleen ŉ nuwe perspektief aan die vier media-effekte soos die steekproefdata, as ŉ voorbeeld van McLuhan se wêrelddorpmetafoor, illustreer. Die bevindinge toon oortuigend aan hoe die vier media-effekte relevant is vir Afrikaans.com se Twitterprofiel as wêrelddorp. Die vraag word ook gestel of die media-effekte relevant sal bly namate Twitter en ander sosialemediaplatforms as gevolg van voortdurend veranderende tegnologie ontwikkel. Derhalwe word 'n vyfde media-effek voorgestel om die fyner nuanses van Twittergesprekke te ontleed.
'n Gevallestudie: 'n Mediahistoriografiese verkenning van 'n vroeë rubriek en 'n latere effekteorie-uitspraak
Authors: Rabe L
Published: February 2019

In hierdie artikel, in die vorm van 'n gevallestudie, verken ek 'n vroeë rubriek uit die 1920's in 'n Afrikanernasionale dagblad vanuit 'n mediahistoriografiese vertrekpunt teenoor 'n veel latere uitspraak wat uit die kognitiewe effekteorie-paradigma stam. Die rubriek heet "Oom Izak van Kaapstad" en het in Die Burger verskyn. Ongeveer sewentig jaar later is die Afrikaanse media beoordeel as ongetwyfeld die kognitiewe bestuurders ("mind managers") van Afrikaners vanuit die konteks van effekteorieë wat handel oor die rol en die mag van die media. Die vertrekpunt van die artikel word binne die veld van die mediahistoriografie gebaseer in 'n poging om dié onderbestudeerde vakwetenskaplike subgenre aan te vul. Ten eerste word dus 'n bespreking van mediahistoriografie aangebied om die onderwerp deeglik in te bed in die veld, waarop 'n bespreking van kognitiewe effekteorie volg wat die rol en die mag van die media voorhou. Laasgenoemde word aangevul met 'n bespreking rondom "kognitiewe denke" vanuit die perspektief van die kultuursosiologie. Die gevallestudie-benadering as navorsingsontwerp word kortliks saam met die metodologie bespreek. Daarop volg as deel van die mediahistoriese begronding van die artikel, en om die nodige konteks te bied, 'n bespreking van die bepaalde koerant en sy maatskappy se posisie en invloed in die maatskaplike milieu van die Afrikaner, wat inderdaad dekades later sou lei tot die beskouing dat die Afrikaanse media inderdaad kognitiewe bestuurders is. Vervolgens kom die rubriek en sy skrywer self aan bod. Ten slotte word vanuit hierdie mediahistoriografiese verkenning voorgestel dat dié vroeë Afrikaanse rubriek inderdaad as "effek" gesien kan word waarop die latere uitspraak rondom die Afrikaanse media as kognitiewe bestuurders gemaak kon word.
Die belang van kritiese selfrefleksie deur joernalistiekopvoeders
Authors: Jordaan M
Published: February 2019

Die joernalistieke bedryf is onder groot druk en verander teen ŉ ongekende pas. Dit beteken joernalistiekopvoeders - veral op tersiêre vlak - moet gedurig herbesin oor wat in die lesinglokaal gebeur om tred te hou met omwentelinge in die bedryf. Die kernargument in hierdie artikel is dat joernalistiekopvoeders die basiese beginsels van kritiese selfreflektiewe onderrigpraktyk in gedagte moet hou wanneer hulle interaksie met studente het en kurrikula ontwikkel. Kritiese selfreflektiewe onderrigpraktyk beteken om deeglik na te dink oor bestaande waardestelsels en ervaring alvorens besluite oor toekomstige onderrigbenaderings gemaak word (Larrivee 2000:294). In die artikel word kennis geneem van debatte binne joernalistiekonderrig, wat insluit die soms gespanne verhouding tussen die akademie en die bedryf, sowel as onsekerheid wat steeds bestaan oor waar joernalistiekprogramme in die groter universiteitsomgewing inpas. Aandag word ook geskenk aan die veranderende leerstyle van studente. Die gebruik van digitale media-tegnologie word as voorbeeld gebruik van hoe daar soms wanopvattings kan bestaan oor studente se ervaring binne en buite die lesinglokaal. Kritiese selfreflektiewe onderrigpraktyk word gedefinieer ten einde te argumenteer dat dié benadering veral relevant kan wees vir joernalistiekonderrig op universiteit. As voorbeeld van hoe kritiese selfrefleksie aangewakker kan word onder joernalistiekopvoeders, word verwys na ŉ gevallestudie by die Universiteit Stellenbosch se nagraadse joernalistiekdepartement. In dié geval word terugvoer uit fokusgroepe met honneursstudente aangewend om te reflekteer oor kursusinhoud en leerbenaderings wat ook tot kurrikulumvernuwing kan lei.
Die invloed van die digitale medialandskap op mediateorie: Van effekteorie tot mediatiseringsteorie
Authors: Fourie P
Published: February 2019

My oogmerk is om mediatiseringsteorie in teenstelling tot effekteorie en die effekparadigma in medianavorsing as ŉ ontwikkeling en uitvloeisel van die nuwe digitale medialandskap te bespreek. Sewe generiese kenmerke van die nuwe medialandskap word geïdentifiseer en in breë trekke geskets: die diversiteit van ŉ eindelose stroom van inhoud, vorm en aanbieding, ŉ geïntegreerde en gekonvergeerde media-industrie, ŉ geïntegreerde regulatoriese model, meer en verbeterde toegang tot die media, die verskuiwing van massakommunikasie na netwerkkommunikasie, die vervanging van die media-ontvanger met die mediagebruiker en medevervaardiger, en ŉ kenmerkende "aanlyn" kommunikasiestyl. Ek probeer in hierdie artikel aantoon hoe mediatiseringsteorie van ander teorieë oor die mag en effek van die media verskil, deur die klem van kousaliteit te verskuif na hoe die media as ŉ proses van mediatisering al die domeine van die samelewing en die daaglikse lewe van die mediagebruiker infiltreer. Die ontologiese uitgangspunt is dat die media naas taal en persepsie dié instrument vir menslike kognisie geword het (vir die verstaan van die wêreld, mense, dinge, gebeure, ensovoorts.) Tweedens word die verskil tussen mediatiseringsteorie en effekteorie geïdentifiseer deur te wys op mediatiseringsteorie se klem op die media as ŉ transformasieproses soortgelyk aan die sosiale prosesse van globalisering, individualisering en kommersialisering in die ná-industriële samelewing. Samevattend word geargumenteer dat die klem in mediatiseringsteorie verskuif van media en die samelewing na media in die samelewing. Ten slotte word aangetoon hoe mediatiseringsteorie aanleiding gee tot die kritiek dat normatiewe mediateorie in die nuwe digitale medialandskap heuristiese waarde as die basis van media-etiek verloor het. Op grond hiervan word aanbeveel dat kommunikasie-etiek, wat meer omvattend as beroepsgeoriënteerde media-etiek is, as uitgangspunt vir nuwe normatiewe mediateorie ondersoek word.
Die staat, diversiteit en die media: Enkele opmerkings oor die situasie in Suid-Afrika
Authors: Bornman E
Published: February 2019

Hierdie artikel fokus op die rol van die media in state wat gekenmerk word deur kulturele diversiteit soos wat die geval in die meeste Afrika-lande en ook in Suid-Afrika is. Teorieë oor die kenmerke en rol van die media in die primordiale staat, die siviele eenheidstaat en die multikulturele staat word bespreek. Daar word in die besonder gekyk na die rol van nasiebou om nasionale eenheid te bewerkstellig in heterogene state wat die model van die siviele eenheidstaat nastreef. Die praktyk van nasiebou soos dit in Afrika en ook in Suid-Afrika toegepas word, word vervolgens bespreek. Verder word die rol van die media in ŉ multikulturele staatsmodel ondersoek. Ter afsluiting word enkele opmerkings gemaak oor die rol van die media ten opsigte van die diversiteit van die Suid-Afrikaanse samelewing.
'n Kritiese rekonstruksie van die begrip openbare sfeer by Habermas (en die massamedia)
Authors: Duvenage P
Published: February 2019

In hierdie bydrae word Habermas se begrip van die openbare sfeer krities gerekonstrueer. In die inleiding word ŉ bondige bespreking van Habermas se intellektuele loopbaan verskaf en meer spesifiek die Duitse agtergrond tot sy denke na die Tweede Wêreldoorlog. In die tweede afdeling word sy hantering in sy eerste hoofwerk, Die struktuurverandering van die openbare sfeer (1962) bespreek. Dit hou met vier aspekte verband: ŉ historiese rekonstruksie van die begrip openbare sfeer, die normatiewe dimensie wat dit onder moderne omstandighede verkry het, die verval van die openbare sfeer aan die einde van die 19de eeu en enkele kritiese punte. In die derde afdeling word die verdere ontwikkeling van die begrip openbare sfeer aangedui totdat dit in Habermas se hoofwerk, die Teorie van kommunikatiewe handeling (1981) uitmond as ŉ teorie van argumentering, teorie van sosiale rasionalisering en ŉ verdediging van moderniteit. Uiteindelik word die implikasies van hierdie teorie van kommunikatiewe redelikheid in die vierde afdeling op die massamedia toegepas (soos Habermas dit in ŉ bydrae van 2006 beredeneer). Die bydrae eindig dan in die laaste afdeling met enkele kritiese opmerkinge.
Loerbroer en biegbank: Die uitwysing van rassisme deur die postapartheid- Suid-Afrikaanse media
Authors: Botma G
Published: February 2019

Die voortdurende debat oor die rol van die media in die samelewing word in hierdie artikel verryk deur die identifisering van twee nuwe metaforiese beskrywings: loerbroer en biegbank. Die beskrywings spruit uit ŉ Foucaultiaanse lesing van die wisselwerking tussen mag/kennis en die rol van die media in diskoerse wat in die samelewing om hegemonie meeding. Die toepassing daarvan werp lig op die dekking van insidente van beweerde rassisme in die Suid-Afrikaanse media oor die laaste paar jaar. Die artikel toon aan hoe daar ondanks diversiteit in die media tog ŉ patroon ontstaan wat deur die loerbroer en biegbank beskryf kan word.
Mans se rol in die stryd om gendergeregtigheid: 'n Historiese oorsig van antifeminisme en profeminisme
Authors: Pretorius E
Published: February 2019

Die sosiale orde word deur die loop van millennia deur genderongelykheid gekenmerk. Dit het aanleiding gegee tot die vrouebevrydingsbeweging en feminisme. Mans was van meet af aan betrokke by die stryd om gendergeregtigheid1 - weliswaar op verskillende maniere. Sommige het organisasies teen vroue (antifeministies) en ander vir vroue (profeministies) gevestig. Op hul beurt het vroue aanvanklik mans se betrokkenheid verwelkom (in die 1960's), maar teen die middel van die 1970's het radikale feministe mans se ondersteuning van die vrouebeweging grotendeels verwerp. In die 1990's het feministe ontevredenheid in eie geledere ervaar. Die kritiek teen sogenaamde hegemoniese feminisme was veral van vroue van kleur afkomstig. Alhoewel verskeie redes vir mans se betrokkenheid aangevoer word, word sodanige betrokkenheid meermale bevraagteken. Talle voorbehoude word derhalwe in hierdie verband gestel. Alhoewel profeminisme hoofsaaklik in Amerika en Europa ontstaan het, het dit uiteindelik na Afrika gemigreer. 'n Suid-Afrikaanse profeministiese organisasie, Sonke Gender Justice, dien as teenvoeter vir die antifeminisme van ʼn nuwe jeugbeweging (onder invloed van Julius Malema) en tradisionaliste soos Jacob Zuma.
Om na uitbuiting toe te vlug: Die geval van immigrante wat as motorwagte werk
Authors: Steyn F
Published: February 2019

'n Groot getal immigrante steek jaarliks Suid-Afrika se grense oor, hetsy wettig of onwettig, op soek na werksgeleenthede. Sonder die nodige dokumentasie word talle immigrante genoodsaak om hulle tot die informele ekonomie te wend waar arbeid nie na behore gereguleer word nie en werkers uitgebuit kan word. Die praktyk waar mense teen 'n fooitjie na voertuie op winkelsentrums se parkeerterreine omsien, is kenmerkend van Suid-Afrika se stedelike landskap. Motoroppas spruit uit die land se hoë misdaadvlakke en die vrees vir viktimisering. Behoeftige en gemarginaliseerde mense, met inbegrip van onwettige immigrante, werk as motorwagte en dit bied 'n tydelike uitkoms vir die groot getal werkloses in Suid-Afrika. Hierdie artikel doen verslag oor die ervarings van 90 immigrante teenoor 54 Suid-Afrikaanse burgers wat as motorwagte in Pretoria werk. Alhoewel die bevindinge statisties beduidende verskille uitwys tussen immigrante en plaaslike motorwagte ten opsigte van hul opvoeding, huishoudelike dinamika, verhoudings met klante en kennis van arbeidswette, is immigrantmotorwagte aan dieselfde finansiële uitbuiting onderworpe as wat motorwagte in die algemeen ervaar. Immigrante wat die ekonomiese en politieke onrus in hul eie lande probeer ontvlug en as motorwagte in Suid-Afrika werk, vlug moontlik net na verdere uitbuiting.
Geleneksel Türk Seramiğinin Seramik Eğitimindeki Yeri
Authors: KACAR Vedat
Published: February 2019

‘Geleneksel Türk seramiği’ adlandırması günümüzde güzel sanatlar eğitiminde yaygın olarak kullanılmayan ancak ‘çini’olarak literatürde yer almış geleneksel üretim biçiminin bir karşılığıdır. ‘Geleneksel Türk seramiği’ yerine ‘çini’ terimininkullanılıyor olmasının sektör ve eğitim alanlarında kavram kargaşasına neden olduğu konusunda görüşler bulunmaktadır.Üretim yöntemleri ve kullanılan malzemelerin benzer olması öğrencilerin algısında bir yanılgı oluşturmaktadır. Bu yanılgıseramik ve çini üretimlerinin farklı uygulama ve tasarım alanları olarak algılanmasıdır. Çamur, sır, boya çeşitleri ve pişmedereceleri farklılık gösterse de ortaya çıkarılan ürünler/eserler aynı aileye aittir. Çini ürünlerin ‘geleneksel seramik’ olaraktanımlanması, bu kavramın daha doğru anlaşılmasını sağlar. Üretim serüveni ve şekillendirme aşamaları birbirindenfarklı olmayan seramik ve çini eğitiminde her iki alanın birbirinden nasıl faydalanabileceği üzerine öneriler getirmek buçalışmanın amacını oluşturmaktadır. Araştırmada, genel olarak ‘çini’ sanatı olarak kabul gören geleneksel Türk seramiküretim biçiminin ve bu üretim kapsamında kullanılan geleneksel form ve malzemelerin Seramik Bölümlerinde ne şekildeyer alması gerektiği üzerinde durulmuş, çağdaş Türk seramiği ile geleneksel Türk seramiğinin kimlik sorunu tartışılmıştır.Bu yolla günümüz seramik eğitiminde çağdaş ve geleneksel Türk seramiğinin hangi noktalarda birleşebileceği hakkındaönerilerde bulunulmuştur.