bluuebunny/crossref_metadata_2025 huggingface dataset:
PLASMA CHARACTERISTICS IN SQUARE PULSE ARC DISCHARGE OF PLASMA CATHODE ELECTRON SOURCE DEVICE
Authors: Purwadi Agus , Siswanto Bambang , . Wirjoadi , Susita R.M. Lely , . Sudjatmoko
Published: May 2019

Plasma parameters in Plasma Cathode Electron Source Device (PCESD) are very important things because they will determine the eficiency of its electron extraction. Square pulse mode of PCESD’s arc discharge plasma current can be obtained by using Pulse Forming Network (PFN) circuits which is called Arc Discharge Power Supply (ADPS). The square pulse mode is necessity to simplify in electron irradiation dose calculation. ADPS is connected with Hollow Anode Chamber (HAC) which is placed inside of PCESD to produce arc discharge plasma. The value of arc discharge plasma current is the main key to determine plasma parameters that can be measured by using Rogowski coil. The value of the arc discharge plasma current is IADPS = 206.30 A with pulse width  = 80 μs. Whereas the plasma parameters values inside of the HAC are: the electron plasma density ne = (16.85  1019) m-3, electron plasma temperature Te = 2.609 eV, electron plasma frequency fe = 116.74 GHz, and Debye length λD = 9.958 µm respectively.
MONITORING LOGAM BERAT DALAM IKAN LAUT DAN AIR TAWAR DAN EVALUASI NUTRISI DARI KONSUMSI IKAN
Authors: Mulyaningsih Th. Rina
Published: May 2019

Ikan adalah bahan makanan sumber mineral. Serapan logam berat pada ikan dapat berasal dari air, sedimen maupun pakan ikan. Telah dilakukan monitoring mineral dan kontaminan dalam ikan untuk evaluasi nutrisi dan keamanan pangan, menggunakan teknik analisis aktivasi neutron. Jenis ikan laut dianalisis adalah ikan kembung (Rastrelliger faughni ) ikan tongkol (Acanthocybium solandri), ikan tengiri (Authis thazard) dan ikan air tawar adalah ikan nila (Oreochromis niloticus), ikan mas (Cyprinus carpio), ikan bawal (Colossoma macropomum), yang disampling dari 6 pasar di Jakarta Utara. Hasil monitoring menunjukkan bahwa, mineral esensial yang terkandung dalam ikan adalah Fe, K, Na, Zn, Ca, Mg, dan Se. Konsentrasi Ca dan Se dalam ikan air laut lebih tinggi dibandingkan dalam ikan air tawar. Konsentrasi unsur esensial lainnya bervariasi tergantung jenis ikan. Konsentrasi logam berat As dalam ikan laut 3 kali lebih tinggi dari ikan air tawar. Logam Hg dan Cr terdeteksi dalam semua jenis ikan diamati. Dari evaluasi kecukupan nutrisi, dengan asumsi konsumsi ikan 86,68 gr/hari, untuk laki-laki umur 19 - 30 tahun, dan mengacu data dari Institute of Medicine USA, maka asupan Ca : 2,5 - 6,3; Cl : 1,5 - 3,3; Fe : 11,5 - 26,9; Na : 1,5 - 4,1; K : 3,4 - 6,7 dan Zn 3,9 - 7,2 % dari nilai yang direkomendasikan. Asupan Cr melebihi dari nilai yang direkomendasikan, sedangkan As dan Hg tidak direkomendasikan ada dalam bahan pangan. Pada kenyataannya logam tersebut terkandung di dalam ikan diteliti, tetapi konsentrasinya masih di bawah nilai baku mutu yang dikeluarkan oleh BPOM.
UJI INTERKOMPARASI METODE AAN DAN XRF UNTUK ANALISIS SAMPEL SEDIMEN IAEA INTER COMPARISON TEST OF NAA AND XRF METHOD FOR IAEA SEDIMENT SAMPLE ANALYSIS
Authors: Kurniawati Syukria , Kusmartini Indah , Lestiani Diah Dwiana , Syahfitri Woro Yatu Niken
Published: May 2019

Laboratorium Pusat Teknologi Nuklir Bahan dan Radiometri mengikuti kegiatan interkomparasi IAEA tahun 2011. Sampel uji yaitu sedimen dengan kode IAEA 457. Metode uji meliputi Analisis Aktivasi Neutron (AAN) dan X-Ray Fluorescence (XRF). Dilakukan perbandingan metode AAN dan XRF untuk mengevaluasi kinerja masing-masing metode dan mengetahui kesesuaian kedua metode tersebut dalam analisis unsur pada sampel interkomparasi IAEA. Evaluasi kinerja masing-masing metode dilakukan dengan uji akurasi dan perhitungan z-score sedangkan kesesuaian metode diuji dengan uji t-berpasangan. Hasil analisis sampel menggunakan AAN diidentifikasi enam unsur Al, Fe, Cr, Co, Mn dan Zn sedangkan XRF diidentifikasi delapan unsur Al, Fe, Cr, Co, Cu, Mn, Pb dan Zn. Hasil uji akurasi pada AAN, unsur Al dan Fe kurang memuaskan sedangkan pada XRF unsur Co memiliki hasil yang kurang baik. Hasil perhitungan z-score, hampir semua unsur memberikan hasil yang memuaskan kecuali Al menggunakan metode AAN. Uji t-berpasangan yang dilakukan pada hasil analisis sedimen menggunakan AAN dan XRF memberikan hasil t-hitung < t-tabel, artinya tidak ada perbedaan hasil analisis antara kedua metode. Hasil tersebut menunjukkan bahwa metode AAN dan XRF dapat saling melengkapi untuk analisis unsur pada sampel IAEA 457. Secara umum, kedua hasil analisis unsur menunjukkan kesesuaian yang baik sehingga memperkuat validitas hasil analisis sampel interkomparasi IAEA.
PARALLEL BEAM NEUTRON COMPUTED TOMOGRAPHY RECONSTRUCTION WITH VARIOUS FILTERS
Authors: Maharani Ahsani Ummi Mardiyanto, Bharoto, Sutiarso
Published: May 2019

ABSTRACT PARALLEL BEAM NEUTRON COMPUTED TOMOGRAPHY RECONSTRUCTION WITH VARIOUS FILTERS. This paper presents a simple calculation using the MatLab application code for five different filter functions to obtain the best image quality for parallel beam neutron computed tomography. Shepp-Logan, Ramachandran- Lakshminarayanan, Cosine, Hamming and Hann Filter and without filter were used for a cross-section of a car coil ignitor reconstruction. The reconstruction was also done by varying the number of projections namely 180, 90, 45 and 12. The quality of the image can be determined by viewing the image directly or by using grey level curve to show the signal to noise image. The good images were determined by their signal-to-noise ratio (SNR) value. The high SNR values were obtained from the images which were reconstructed by using hamming and Hann filter. On the other hand the lowest SNR was obtained when the image was reconstructed without any filter. The number of the projections were also influenced the image quality, the more the projection number is used the better the image quality is obtained.
ANALISIS EFISIENSI TRAFO FREKUENSI TINGGI PADA SUMBER TEGANGAN TINGGI COCKCROFT WALTON MBE LATEKS
Authors: Darsono Darsono , Suyamto Suyamto , Taufik Taufik
Published: May 2019

ABSTRAK Analisis EFISIENSI TRAFO FREKUENSI TINGGI PADA SUMBER TEGANGAN TINGGI COCKCROFT WALTON MBE LATEK.. Trafo frekuensi tinggi (TFT) 1 fasa, 15 kW, 7/17,5 kV, 40 kHz yang dibuat telah dioperasikan pada MBE namun belum diketahui karakteristiknya. Efisiensi merupakan karakteristik TFT yang penting untuk dianalisis dalam rangka mengetahui kemampuannya dalam mencatu daya STT-MBE pada  berbagai arus berkas elektron. Analisis dilakukan dengan menghitung rugi-rugi inti dan rugi-rugi lilitan dimana rugi inti tergantung pada bahannya, sedangkan rugi lilitan tergantung pada arus dan tahanannya dengan memperhatikan kenaikan suhu yang terjadi saat dioperasikan. Pada induksi magnet maksimum Bm 0,15 T dan frekuensi operasi 40 kHz, diketahui rugi daya inti  611,78 W sedangkan rugi daya lilitan total 9,85 W pada beban penuh 1,07 A sehingga efisiensi trafo pada beban penuh 96,02 %.  Efisiensi  trafo dihitung dengan variasi arus beban atau arus berkas elektron Ibe dimana rugi daya lilitan berbanding kuadrat terhadap arus beban.  Efisiensi maksimum (hm) TFT di bawah beban penuh adalah sebesar 95,71 % terjadi pada Ibe 11 mA atau 92,4 % beban penuh.  Pada Ibe yang lebih besar misalnya 12 mA, TFT mengalami kondisi beban lebih sebesar 9,34 %.  Jika dibandingkan dengan trafo tenaga yang mempunyai efisiensi maksimum sekitar 80 % beban penuh, maka TFT yang dibuat mempunyai efisiensi maksimum pada persen beban yang lebih besar. Efisiensi TFT juga mempunyai kecenderungan sama dengan jenis trafo tenaga yaitu semakin besar bila bebannya semakin besar.
Síndrome de Ondina (hipoventilación central congénita), una amenaza contra la vida al dormir
Authors: Marín-Gómez Lizeth , Zuliani-Arango Liliana Adela
Published: May 2019

El síndrome de Ondina, o síndrome de hipoventilación central congénita, es una enfermedad neurológica rara, donde hay fracaso en el control de la ventilación en el sistema nervioso central, llevando a la hipoxia e hipercapnia que pueden generar problemas del neurodesarrollo y, finalmente, ocasionar la muerte. Puede representar una situación muy dolorosa para los familiares de los pacientes que la padecen, despertando sentimientos difíciles de enfrentar, es por esto que es importante tener conocimiento acerca de esta condición para así impactar en la disminución de su incidencia.
Neumopatía crónica secundaria al trastorno de la deglución en un paciente con miopatía mitocondrial
Authors: Palacio-Petri Silvia , Morales-Múnera Olga Lucía , Ortiz-Giraldo Blair
Published: May 2019

Introducción: la enfermedad pulmonar crónica secundaria a la disfagia es una complicación frecuente en los pacientes con enfermedades neuromusculares. Las miopatías mitocondriales son un conjunto de enfermedades que pueden conducir a daño pulmonar progresivo, secundario al síndrome aspirativo crónico.Caso clínico: niño de 7 años con signos clínicos y radiológicos de enfermedad pulmonar crónica; además, con desnutrición crónica, debilidad muscular, disfonía y oculoparesia externa crónica multiplanar. Su padre tuvo síntomas similares desde la infancia y requirió alimentación con dieta espesa por trastorno de la deglución. Se confirma en el paciente la presencia de disfagia como la causa de la neumopatía crónica y se sospecha miopatía congénita hereditaria. En consecuencia, se realiza el diagnóstico de enfermedad mitocondrial con oculoparesia externa crónica, mediante la secuenciación del gen polimerasa gamma del ADN mitocondrial (POLG).Conclusiones: en los pacientes con neumopatía crónica se deben considerar las enfermedades neuromusculares en el diagnóstico diferencial. La miopatía mitocondrial con oculoparesia externa crónica progresiva, se asocia con trastorno de la deglución hasta en un 50 % de los casos. El diagnóstico temprano es importante para retardar el deterioro de la función pulmonar.
Soberanía territorial y ejercicio del poder sobre la ciudad Huellas de la dictadura cívico militar argentina (1976-1983) en la trama urbana y social de la Región Metropolitana de Buenos Aires
Authors: Amado Jorge Omar , D´Liberis Marcela
Published: May 2019

La idea de soberanía territorial no es usualmente abordada desde los estudios urbanos, sino que es, mayormente, objeto de estudio del derecho y la política, comprendiendo cuestiones relacionadas con los Estados nación. Particularmente, al poder que los mismos ejercen a través de su gobierno sobre su territorio construyendo identidades propias por medio de fronteras. Al hablar de Estado, es ineludible hacer referencia a los elementos que lo componen: gobierno, pueblo y territorio. Estos conceptos aparecen más cercanos a los estudios urbanos y así nos permite realizar aproximaciones respecto a la puesta en práctica de la soberanía territorial a través de la injerencia diferencial de sus elementos constitutivos. En ese sentido, proponemos estudiar las políticas urbanas sancionadas por la dictadura cívico-militar en Argentina (1976-1983), particularmente en la Ciudad de Buenos Aires y en la Provincia de Buenos Aires, lo que ocasionó transformaciones radicales en la trama urbana y social en la búsqueda de orden, control, vigilancia y expulsión de los sectores populares. A partir de este análisis identificamos que dichas políticas han dejado una impronta tan marcada que aún hoy se observan sus huellas y, más aún, se considera a este período como uno de los más importantes en términos de cambios urbanos de toda la historia moderna de la Región Metropolitana de Buenos Aires (RMBA). Lo que alguna vez fueron transformaciones radicales, son elementos que perduran hoy en día, convirtiéndose en improntas estructurales que han definido en forma segregada el hábitat de los sectores populares y las élites de toda la RMBA. El desafío en términos académicos, pero más aún desde el punto de vista de la gestión política y la disciplina urbanística, se encuentra en poder señalar las injusticias cometidas en ese momento a través de las normativas de la dictadura, intentando reconstruir la historia y el territorio fragmentado.
Ethical reasons for the regulation of gametes’ donation and co-parenting
Authors: Savvina O. V.
Published: May 2019

The article analyzes the practice of legislative regulation of the gametes’ donation and its ethical grounds. Gametes’ donation is often used in conjunction with assisted reproductive technologies to treat infertility and/or family planning. The study applies an interdisciplinary approach: it is based on the research carried out in the field of philosophy (bioethics), law, medicine with the application of sociological surveys.

The article shows that the introduction of this practice affects traditional family values, blurs fraternal-sisterly relations making genetic brothers and sisters strangers to each other, transforms the family creating its new forms through the practice of co-parenting that is gaining popularity in English-speaking countries. Also, the article identifies the problem of negative attitude of religious authorities to the practice of donating gametes. The legislative regulation cannot but take into account the public sentiment; and the percentage of believers in the State when implementing the laws regulating the donation of gametes is an important factor. Another important problem discussed in the article concerns the welfare and rights of a future child conceived with the help of the donation of gametes, his or her «right to know» and «right not to know» the birth secret.
Role of the European ombudsman in implementation of good governance
Authors: Pokrovskiy A. V.
Published: May 2019

The purpose of the paper is to analyze the phenomena of the law of the European Union, ensuring the activities of the European Ombudsman as a body promoting the integration process in the European Union.

The subject of consideration in the article is the legal status of the European Ombudsman, its role and place in the institutional system of the European Union.

The paper provides a brief overview of the competence of the European Ombudsman and ways of his activities, explores the role of the European Ombudsman in implementing the good governance, analyzes the practice of the European Ombudsman and its impact on the activities of EU institutions and bodies.

It is determined that the decisions of the European Ombudsman, directed against violations of the order of governance, affect relations in various areas of the European Union, contributing to the practical implementation of the conceptual principles of good governance. Not legally binding, the decisions of the European Ombudsman are embodied in acts of EU institutions that establish the relevant rules as binding.
Pedagogical models of blended learning: On the experience of Russian and foreign practice of design and implementation
Authors: Pletyago T. Yu. , Ostapenko A. S. , Antonova S. N.
Published: May 2019

Introduction. One of the strategic components of modern education modernisation is its technological diversification by means of traditional and emedia blend in the educational process aimed at acquiring knowledge, skills and competences. This blend is considered a trigger for innovative development of higher education worldwide due to its adequate adaptive personalised professional training for students. Thereby, to interpret and evaluate the pedagogical potential for blended learning models implementation in higher education environment is regarded as foremost.

The aim of the article is to theoretically and practically provide rationale for the efficiency of structural and functional content of the existing blended learning models that designate specific patterns for education management in Russian and foreign universities.

Methodology and research methods. System approach underlies this research. Retrospective and comparative analysis methods, synthesis and classification have been employed to conduct the research. A survey is a supplementary method used to collect empirical data.

Results and scientific novelty. The existing definitions of blended learning are reviewed. Pedagogical models of blended learning are compared according to their dominant functional feature, design principles and basic components. The models are classified into institutional, technological, didactic and synergistic on the basis of synthesis and systematisation of the theoretical and practical experience of an integrative didactic teaching system design in the university electronic educational environment. Each type of these models is described; their features, peculiarities and advantages are shown. It is concluded that there is no unified approach in understanding the essence of blended learning. Thus, the authors’ interpretation of the blended learning concept is developed in the research.

Practical significance. The results of the research may be applied in design, implementation and assessment performance of blended learning models or their components in practice of particular universities.
Chronic Pain as Fluid, BDSM as Control
Authors: Sheppard Emma
Published: May 2019

The paper identifies how chronic pain is a disability and lays out the ways in which a cripistemology of chronic pain – and cripping chronic pain – is a productive exploration of pain. After exploring normative discourses of chronic pain through a crip lens, and identifying how pain is not meaningless, but instead imbued with multiple meanings, the paper presents some findings from a recent research project exploring the phenomenological experience of people living with chronic pain who engage in BDSM play. Two dual narratives are identified: pain as a contagious fluid, requiring control of pain and the emotional expression of pain, and the uses of BDSM in that control. The paper offers a crip reading of these non-normative experiences.
Editors' Introduction
Authors: Brueggemann Brenda Jo , Olson Elizabeth Brewer
Published: May 2019

No abstract available.
Trans-Screens of Gender and Jewishness in Jill Soloway's Transparent: Post-Network TV and the Screendance Scene
Authors: Schwadron Hannah
Published: May 2019

This essay analyzes the artful insertion of screendance scenes in Season Two of Jill Soloway’s Amazon hit, Transparent (2014- ), highlighting how bodies and camera choreograph affective connections core to the plot in this televisual portrait of a Jewish American family. In doing so, I underscore a layered screenic trans-ness that conjoins circular manipulations of time and bodily action to overlay transgender and transhistorical experiences as co-constitutive themes.
Mr. Gaga: Embodying the Exceptionalism of Ohad Naharin
Authors: Quinlan Meghan
Published: May 2019

The life and work of Israeli choreographer Ohad Naharin are documented in the 2015 film by Tomer Heymann, Mr. Gaga. With nearly a decade of footage from following Naharin’s work with the Batsheva Dance Company, the documentary celebrates Naharin’s life with abundant footage from his choreographic successes. This article explores the ways in which this film, like many dance documentaries, uses dance footage in strategic ways to present dance artists as exceptional. In Mr. Gaga in particular, the national and cultural specificity of the story and footage portrayed in the film require critical analysis to better understand subtle political undertones and bias embedded in the film’s otherwise primarily aesthetic focus.
Reflecting on Light Moves Festival of Screendance 2018
Authors: McPherson Katrina
Published: May 2019

A review of Light Moves Festival of Screendance 2018.
Dance’s Duet with the Camera: Motion Pictures. Edited by Telory D. Arendell and Ruth Barnes. 2016. London: Palgrave MacMillan. 263 pp. Hardcover $99.99. ISBN 978-1-137-59609-3
Authors: Frasson Elisa
Published: May 2019

A review of Dance’s Duet with the Camera: Motion Pictures edited by Telory D. Arendell and Ruth Barnes.
Making Video Dance: A Step-by-Step Guide to Creating Dance for the Screen (2nd ed), by Katrina McPherson. 2018. London and New York: Routledge. 280 pp. Black and white images. $120 hardcover. ISBN 978-1-13-869912-0. $31.96 paperback. ISBN 978-1-13-869913-7. Website: www.makingvideodance.com.
Authors: Gee Robin
Published: May 2019

Review of Making Video Dance: A Step-by-Step Guide to Creating Dance for the Screen (2nd ed), by Katrina McPherson.
Molecular Pathways of Ischemic Stroke and Advanced Therapeutic Strategies
Authors: Singh Preeti
Published: May 2019

Ischemic stroke is a leading cause of death and permanent disability.
This disease may affect any age group and especially in old age and
pregnancy. All the responsible mechanisms are yet not completely
understood. There is limited therapeutic intervention beyond prevention,
yet tremendous progress in understanding cause of stroke at
molecular level has been going on. A lot of advancement has occurred
in the prevention and treatment of stroke during the past decade. In
this review an update work of causeways of stroke and its therapeutic
approaches have been discussed. The relevance of excitotoxicity (role
of glutamate receptor), inflammation, ischemic penumbra, apoptosis,
to delayed mechanisms and, damage and treatment strategies have
been hasted out. Although the results among clinical studies, conflict
regarding several experimental data of different therapies, and it
may improve neurological outcome after acute cerebral ischemia.
Along this several other interventions and new technologies such
as stroke detector microwave helmet are being assessed and many
other advanced techniques developed by researchers. Even the
development of other novel and new treatment strategies (regarding
molecular pathways and risk to benefit therapeutic ratio) for stroke
are still required in future for better treatment.
Methane Flux Estimation in MSW Open Dump Site by In-Situ Measurement and IPCC (DM and FOD) Model
Authors: Chaudhary Rubina , Singh Shukti
Published: May 2019

This paper deals with the use of different methods to predict methane
generation on an open dump site. Methane recovery data obtained on
site as part of a research program being carried out at the Devguradia
dumpsite, Indore, is analyzed and used to obtain field methane emission
in three seasons. Field data from Municipal solid waste (MSW)
dump site are presented and discussed measured in-situ technique
i.e. using close chamber methods. The Intergovernmental Panel on
Climate Change (IPCC) Default Method (DM) and First order Decay
(FOD) method is used to estimate methane generation. It is found
that despite the assumptions and the simplicity of the adopted procedures,
the values methane obtained are slightly varying to those
measured in the field. The values obtained were 4.5, 2.9 and 0.35
Gg/y respectively.
Book Review
Authors: Arora Pankaj Kumar
Published: May 2019

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Valoración por el método de flujo de caja libre: finca bananera de Urabá
Authors: Henao Vásquez María Camila , Caro Atehortúa Diego Andrés
Published: May 2019

La producción de banano es fundamental en la economía de la región de Urabá, por tanto, es necesario que sea más competitiva técnica y financieramente, por ello se realizó una valoración de empresa para una finca exportadora de banano ubicada en esta zona bajo la metodología flujo de caja libre, usando información financiera del 2016 y 2017. Se realizó una evaluación técnica (producción) y financiera de la finca, se proyectó el flujo de caja y se calculó el valor presente de la finca. Como resultado se encontró que la finca viene mejorando sus indicadores productivos y financieros año a año; a partir del 2019, la finca presenta un ebitda positivo, de allí en adelante este valor va en crecimiento hasta alcanzar un monto de $ 1 068 383 797, siendo positivo para la finca. Tras realizar el proceso de valoración se encontró que la finca está valorada en promedio $ 13 382 277 080,70 y máxima de $ 14 051 390 934,74.
Desarrollo y aplicación del Supply Chain Management en las empresas de marroquinería en Bogotá
Authors: Caballero Otálora Francisco Javier , Walteros Rangel Oscar Yesid , Santofimio Vargas Fabián
Published: May 2019

En el desarrollo y la aplicación del Supply Chain Management de las empresas de marroquinería pertenecientes a Corpo 7, se parte de entender el comportamiento y capacidades de los integrantes de la red, la cual está conformada desde el ganadero hasta el usuario final. En el desarrollo de la investigación se presenta cual ha sido la evolución del Supply Chain Management para llegar a definir qué tipo de red de valor se ajusta más a este tipo de empresas, teniendo en cuenta los factores de integración y negociación entre los integrantes de la red para, posteriormente, llegar al desarrollo de la red de valor a través del modelo Scor.
Farklı kavite preparasyon yöntemi kullanılarak prepare edilen sınıf V kavitelerinin farklı cam iyonomer simanlarla restore edilerek mikrosızıntısının değerlendirilmesi
Authors: Bahadır H. Sevilay , KARADAĞ Gökhan , BAĞLAR Serdar , BULUT Ali Can
Published: May 2019

Amaç: Bu çalışmanın amacı; farklı kavite preparasyon tekniği kullanılarak
prepare edilen sınıf V kavitelerin, cam iyonomer materyali ile restorasyonu
sonrası okluzal ve gingival bölge de oluşan mikrosızıntı seviyelerini
belirlemektir.Gereç ve Yöntemler: Bu çalışmada; ortodontik veya periodontal sebeplerle çekilmiş ve herhangi
bir çürük, restorasyon ya da yapısal bir bozulma olmayanlar molar dişler (n:90)
kullanılmıştır. Her bir dişin bukkal yüzeyinde standart sınıf V kaviteler 3 mm
genişliğinde, 2 mm yüksekliğinde ve 1,5 mm derinliğinde olacak şekilde açılmıştır.
Kavite preparasyon tekniğine (Er:YAG lazer, Er,Cr:YSGG lazer ve konvansiyonel
yöntem) göre 3 ana gruba (n:30) ayrılan dişler, kendi aralarında da 3 farklı
ticari markalı konvansiyonel cam iyonomer siman ile restore edilerek 3 alt
gruba (n:10) ayrılmıştır. Örnekler stereomikroskopta X16 büyütmede ve SEM de
incelenmiştir. Veriler Kruskal-Wallis ve Wilcoxon testleri ile istatiksel
olarak 0.05 anlamlılık düzeyinde değerlendirilmiştir.Bulgular: Hem SEM hem de mikroskop ile incelenen tüm gruplarda gingival kenar,
okluzal kenara göre daha fazla sızıntı göstermiştir. Kavite preparasyon
yöntemleri arasında hem SEM hem de mikroskop incelemelerinde istatistiksel
olarak anlamlı fark (p<0.05) bulunmuştur.

Sonuç: Kavite preparasyonu ve kullanılan materyale göre mikrosızıntı görülme
oranları değişse de en yoğun mikro sızıntı gingival bölgede görülmektedir.
Çalışmamızda kullanılan Er:YAG lazer yönteminin konvansiyonel yönteme
alternatif olabileceği öngörülmektedir.
Questionnaire-assessed risk of sleep apnea in inpatients with various endocrine disorders
Authors: Misnikova I. V. , Kovaleva Yu. A. , Gubkina V. A. , Klimina N. A.
Published: May 2019

Background: Sleep breathing disorders can be an additional risk factor for the development of cardiovascular disorders in patients with endocrine disorders.

Aim: To assess the sleep apnea risk in patients with various endocrine disorders undergoing inpatient treatment.

Materials and methods: The sleep apnea risk and the severity of daytime sleepiness were evaluated in 282 inpatients with endocrine disorders based on the following questionnaires: the Epworth Sleepiness Scale (ESS), the sleep apnea screening questionnaire (SAS), and the Berlin sleep apnea risk questionnaire (BQ). To identify the real prevalence of sleep respiratory disorders in endocrine patients we performed cardio-respiratory monitoring with Watch-PAT200 (“Itamar Medical”, Israel) device in 81 patients.

Results: A high sleep apnea risk according to the BQ was detected in 59.9% (160/267) of the patients, according to the SAS in 53.53% (144/269), excessive daytime sleepiness (≥ 11 points) was found in 21.66% (60/277) of the patients with the ESS. Among the patients undergoing cardiorespiratory monitoring, sleep apnea was detected in 84% (68/81), including severe apnea in 38.2% (26/68). The highest sleep apnea risk by BQ and SAS was observed in the patients with type 2 diabetes, acromegaly and hypercortisolism. Excessive daytime sleepiness by the ESS was most noticeable in those with hypercortisolism and thyrotoxicosis.

Conclusion: The high risk of sleep apnea in the inpatients with type 2 diabetes mellitus, acromegaly, hypercorticism, and hypothyroidism makes it necessary to include its active screening into the algorithm of their inpatient assessment to rule out any sleep breathing disorder.
Laser-Plasma and Self-Absorption Measurements with Applications to Analysis of Atomic and Molecular Stellar Astrophysics Spectra
Authors: Parigger Christian , Helstern Christopher M , Gautam Ghaneshwar
Published: May 2019

This work discusses laboratory measurements of atomic and diatomic molecular species in laser-plasma generated in gases. Noticeable self-absorption of the Balmer series hydrogen alpha line occurs for electron densities of the order of one tenth of standard ambient temperature and pressure density. Emission spectra of selected diatomic molecules in air or specific gaseous mixtures at or near atmospheric pressure reveal minimal plasma re-absorption. Abel inversion of the plasma in selected gases and gas mixtures confirm expansion dynamics that unravel regions of atomic and molecular species of different electron temperature and density. Time resolved spectroscopy diagnoses self-absorption of hydrogen alpha and hydrogen beta lines in ultra-high pure hydrogen gas. Radiation from a Nd:YAG laser device induces micro-plasma for pulse widths in the range of 6 ns to 14 ns, energies in the range of 100 mJ to 800 mJ, and for peak irradiance of the order 1 to 10 TW/cm2. Atomic line profiles yield electron density and temperature from fitting of line profiles to wavelength and sensitivity corrected spectral radiance data. Analysis of measured diatomic emission data yields excitation temperature of primarily molecular recombination spectra. Applications of the laboratory experiments extend to investigations of stellar astrophysics white dwarf spectra.
It’s Only a Part of the Story: Analytical Investigation of the Inks and Dyes Used in the Privilegium maius
Authors: Calà Elisa , Gosetti Fabio , Gulmini Monica , Serafini Ilaria , Ciccola Alessandro , Curini Roberta , Salis Annalisa , Damonte Gianluca , Kininger Kathrin , Just Thomas , Aceto Maurizio
Published: May 2019

The Privilegium maius is one of the most famous and spectacular forgeries in medieval Europe. It is a set of charters made in 14th century upon commitment by duke Rudolf IV, a member of the Habsburg family, to elevate the rank and the prestige of his family. These five charters, now kept at the Österreichisches Staatsarchiv in Vienna, have been subjected to a thorough interdisciplinary study in order to shed light on its controversial story. The charters are composed by pergamenaceous documents bound to wax seals with coloured textile threads. The present contribution concerns the characterisation of the inks used for writing and of the dyes used to colour to the threads: are they compatible with the presumed age of the charters? Though showing only a part of the whole story of the charters, dyes analysis could contribute in assessing their complex history from manufacturing to nowadays. The dyes were characterised with non-invasive in situ measurements by means of FORS and with micro-invasive measurements by means of SERS and HPLC-MS analysis. The results showed that the threads of four of the charters (three dyed with madder, one with orchil) were apparently coloured at different dyeing stages, then re-dyed in the 19th-20th century.
Superfluid Quantum Vacuum Model,Mass-Energy Equivalence, Inertia, and Gravity
Authors: Sorli Amrit , Malaver Manuel , Patro Santanu Kumar
Published: May 2019

In this paper, we present the Superfluid Vacuum model in order to explain mass-energy equivalence, inertia and gravity. We found that this model confirms that inertial mass and gravitational mass are equal and have this origin in the vacuum fluctuations caused by the variable density of vacuum.
Pengaruh Pemberian Probiotik Terenkapsulasi Pada Pakan Ayam Petelur Terhadap Kolesterol telur Ayam
Authors: Dwyana Zaraswati , Ambeng Ambeng , Haedar Nur , Nasikha Nurul
Published: May 2019

This study aims to determine the effect of probiotic administration encapsulated on the cholesterol content of egg laying eggs. Probiotics are given to laying hens (phase layer), once a day for 4 weeks orally. In this study a completely randomized design (CRD) was used with three treatments, namely, probiotic encapsulated lactic acid bacteria (BAL) (E1), commercial probiotics (E2), and without probiotics (E0) with 4 replications. The variables observed in this study were encapsulated probiotic viability, egg weight (g), egg index (%), and total egg cholesterol content (mg / g). The results showed that the viability of probiotic bacteria decreased by 3.34 cfu / g after 4 weeks of storage at 4OC. Average egg weight at E0; E1; and E2 are 62.63 g, 62.67 g, and 64.15 g. Average egg index at E0; E1; and E2 are 71.13%, 75.54%, and 77.2%. The average cholesterol content at E0; E1; and E2 is 3.75 mg / g, 3.25 mg / g and 3.25 mg / g. The administration of encapsulated probiotics did not affect the quality of egg weight but it affected the egg index and total cholesterol content of egg laying eggs.
Congratulations! The Fourth JDR Award
Authors: Hayashi Haruo
Published: May 2019

We announce that the Fourth JDR Award was won by Professor Emeritus Nobuo Shuto, Tohoku University, Japan. We congratulate the winner and sincerely wish for future success.
Special Issue on Integrated Program for Next Generation Volcano Research and Human Resource Development
Authors: Morita Yuichi , Fujita Eisuke , Nakagawa Mitsuhiro , Nakada Setsuya
Published: May 2019

The phreatic eruption of the Ontake volcano in 2014 reminded us that even moderately active volcanoes, most of which are tourist attractions in Japan, can sometimes exhibit unpredictable and hazardous behaviors, taking away the lives of those who do not fully recognize their threat. With this adding momentum, the Japanese people want volcanology and its applications to be developed to further improve the precision of volcanic eruption alerts. To meet this expectation, a comprehensive program, the “Integrated program for next-generation volcano research and human resource development,” sponsored by the Ministry of Education, Culture, Sports, Science and Technology, was started in November 2016 on a 10-years plan. The most stunning aspect of this program is the integration of (1) a research project and (2) a human resource development program to mitigate volcanic disasters in Japan from long-term point of view. Both of these are collaboratively supported by many researchers from almost all Japanese universities and national institutions related to volcanology. This special issue compiles several topics in this research project to demonstrate its present stage of development and to indicate its anticipated future destination. The target of the research project is to develop, using multi-disciplinary scientific methods, new ways of evaluating volcanic hazards. Specifically, four research groups jointly (A) construct a data archive and exchange system connecting all Japanese volcanologists, (B) develop new geophysical and geochemical observation techniques and methods of analyzing data, (C) evolve methods of predicting volcanic eruptions based on eruption history from precise geological survey and numerical simulations, and (D) propose the provision of technologies for volcanic disasters. We hope that this program will greatly help to mitigate volcanic disasters in Japan, and we will strive to realize this through the research project.
Políticas de fragmentación vs. prácticas de articulación: limitaciones y retos del barrio como dispositivo de planificación neoliberal en Chile
Authors: Letelier Troncoso Luis Francisco , Tapia Barria Veronica Cecilia , Irazábal Clara , Boyco Chioino Patricia
Published: May 2019

La concepción dominante de barrio, basada en el enfoque neo-ecológico de la Escuela de Chicago, asume que las relaciones vecinales se producen en espacios delimitados, virtualmente desconectados de las totalidades urbanas y en torno a comunidades significativamente homogéneas y cohesionadas. Este artículo demuestra que: 1) En Chile, la utilización ideológica de esta concepción de barrio se ha vuelto hegemónica en las políticas públicas y en el ámbito académico, ha legitimado y reproducido la fragmentación del tejido social asociativo, y ha reducido la capacidad de los actores para participar en la producción de lo urbano; y 2) Pese a las restricciones institucionalizadas, es posible disputar el sentido de lo vecinal en base a la praxis territorial. El artículo analiza dos casos de estudio en los cuales, a partir de una base organizacional fragmentada, los actores fueron capaces de articularse de maneras que complejizaron sus marcos espaciales, diversificaron las formas y niveles de vinculación, y mejoraron la capacidad de incidencia de sus comunidades. Ambos casos muestran que las relaciones vecinales pueden ser entendidas más allá de la idea predominante de barrio, es decir, no constreñidas por delimitaciones físicas (lo que llamamos ‘vecinal cerrado’), sino con flexibilidad expansiva más allá de ellas (‘vecinal abierto’); no limitadas a comunidades homogéneas, sino organizadas en redes que articulan distintos tipos y modalidades de comunidad.
Combining Decline-Curve Analysis and Geostatistics To Forecast Gas Production in the Marcellus Shale
Authors: Xi Zhenke , Morgan Eugene
Published: May 2019

To estimate the production potential at a new, prospective field site by means of simulation or material balance, one needs to collect various forms of costly field data and make assumptions about the nature of the formation at that site. Decline–curve analysis (DCA) would not be applicable in this scenario, because producing wells need to pre–exist in the target field. The objective of our work was to make first–order forecasts of production rates at prospective, undrilled sites using only production data from existing wells in the entire play. This is accomplished through the co–Kriging of decline–curve parameter values, where the parameter values are obtained at each existing well by fitting an appropriate decline model to the production history. Co–Kriging gives the best linear unbiased prediction of parameter values at undrilled locations, and also estimates uncertainty in those predictions. Thus, we obtained production forecasts at P10, P50, and P90, and we calculated the estimated ultimate recovery (EUR) at those same levels across the spatial domain of the play.

To demonstrate the proposed methodology, we used monthly gas–flow rates and well locations from the Marcellus shale–gas play in this research. Monitoring only horizontal and directional wells, the gas–production rates at each well were carefully filtered and screened. Also, we normalized the rates by perforation–interval length. We only kept production histories of 24 months or longer to ensure good decline–curve fits. Ultimately, we were left with 5,637 production records. Here, we chose Duong's decline model (Duong 2011) to represent the production decline in this shale–gas play, and fitting this decline curve was accomplished through ordinary least–squares (OLS) regression.

Interpolation was done by universal co–Kriging while considering the correlation between the four parameters in Duong's model, which also showed linear trends (the parameters showed dependency on the x and y spatial coordinates). Kriging gave us the optimal decline–curve coefficients at new locations (P50 curve), as well as the variance in these coefficient estimates (used to establish P10 and P90 curves). We were also able to map EUR for 25 years across the study area. Finally, the universal co–Kriging model was cross validated with a leave–one–out scheme, which showed significant, but not unreasonable, error in the decline–curve–coefficient prediction. The methods proposed were implemented and did not require various costly data, such as permeability and bottomhole pressure, thus giving operators a risk–based analysis of prospective sites. While we demonstrated the procedure on the Marcellus shale–gas play, it is applicable to any play with existing producing wells. We also made this analysis available to the public in a user–friendly web application (Xi and Morgan 2018).
Intracranial mechanical thrombectomy of large vessel occlusions in the posterior circulation using SAVE
Authors: Maus Volker , Styczen Hanna , Liman Jan , Maier Ilko , Brehm Alex , Tsogkas Ioannis , Psychogios Marios Nikos
Published: May 2019

Background

Mechanical thrombectomy (MT) using stent retriever assisted vacuum-locked extraction (SAVE) is a promising method for anterior circulation strokes. We present our experience with SAVE for large vessel occlusions (LVO) of the posterior circulation.

Methods

We retrospectively analyzed 66 consecutive MT patients suffering from LVO of the posterior circulation. Primary endpoints were first-pass and overall complete/near complete reperfusion, defined as a modified thrombolysis in cerebral infarction (mTICI) score of 2c and 3. Secondary endpoints contained number of passes, time interval from groin puncture to reperfusion and rate of postinterventional symptomatic intracranial hemorrhage (sICH).

Results

Median age was 75 years (interquartile range (IQR) 54 – 81 years). Baseline median National Institutes of Health stroke scale (NIHSS) was 13 (IQR 8 – 21). Fifty-five (83%) patients had LVO of the basilar artery and 11 (17%) of the posterior cerebral artery. Eighteen (27%) patients were treated with SAVE and 21 (32%) with aspiration only. First pass mTICI2c or 3 and overall mTICI2c or 3 were documented in 11/18 (61%) and 14/18 (78%) with SAVE and in 4/21 (19%) and 13/21 (33%) with aspiration only. Median attempt was 1 (IQR 1 – 2) with SAVE and 2 (IQR 1 – 4) with aspiration (p=0.0249). Median groin to reperfusion time did not differ significantly between groups. The rate of sICH was 5% without any complications in the SAVE cohort.

Conclusion

Mechanical thrombectomy of posterior large vessel occlusions with SAVE is feasible, safe, and effective with high rates of near-complete and complete reperfusion.
A Study Protocol for a Randomised Controlled Trial Evaluating the Effects of Intraoperative Computed Tomography on the Outcomes of Zygomatic Fractures
Authors: Higgins Andrew Michael , Hurrell Michael James Leslie , Harris Richard Ian , Findlay Geoffrey James , David Michael C , Batstone Martin Druce
Published: May 2019

Background

Zygomaticomaxillary complex (ZMC) and zygomatic arch (ZA) fractures are common injuries resulting from facial trauma and frequently require surgical management.1 A substantial number of post-operative functional and cosmetic complications can arise from the surgical management of these fractures. These include scarring, inadequate facial profile restoration, facial asymmetries and diplopia.2-4 Intuitively, most of these aforementioned complications arise as a result of inadequate fracture reduction, however current standard practice is to assess reduction post-operatively through plain radiographs or computed tomography (CT) scans. The role of intra-operative computed tomography (CT) scanning to assess the reduction of ZMC/ZA fractures and the potential impact on complications, has thus far not been established.

Methods

This is a prospective randomised controlled trial currently being undertaken at the Royal Brisbane and Women’s Hospital. All patients who require operative management of their ZMC or ZA fractures are offered enrollment in the trial. The patients are randomised into two groups: interventional (intra-operative CT) and control (no intra-operative CT). All patients from both groups will have post-operative radiographs taken. From these radiographs, the reduction of the ZMC and/or ZA fracture is graded by a blinded assessor. Patients will be reviewed in clinic at one and six weeks post-surgery. During these consultations, all patients will be assessed for scarring, diplopia, facial profile restoration and need for revision surgery.

Discussion

Many complications associated with surgical management of ZMC and ZA fractures involve poor aesthetic results as a direct consequence of inadequate fracture reduction. Inadequate fracture reduction is predictable given that small incisions are used and only limited visualisation of the fractures is possible during the procedure. This is due to a desire to limit scarring and reduce the risk of damage to vital structures in an aesthetically sensitive region of the body. It follows that an intraoperative adjunctive tool such as a CT scan, which can assist in visualisation of the fractures and the subsequent reduction, could potentially improve reduction and reduce complications.
The effect of Sang-qi Granules on blood pressure and endothelial dysfunction in stageⅠ or Ⅱ hypertension: study protocol for a randomized double-blind double-simulation controlled trial
Authors: Shi Haoyue , Yang Deshuang , Qiao Jiajun , Sun Rui , Li Ruihan , Zhu Chunlin , Jing Ruiqing , Liu Liping , Huang Li , li lin
Published: May 2019

Background: Hypertension is an important worldwide public health challenge because of its high prevalence and concomitant risks of cardiovascular disease. It induces half of the coronary heart disease and approximately two-thirds of the cerebrovascular disease burdens. Vascular endothelial dysfunction plays important roles in the pathophysiology of essential hypertension. Sang-qi Granules (SQG), a Chinese herbal formula, is used to treat I or II hypertension by traditional Chinese medicine (TCM) practitioners. Several animal experimental studies have showed that SQG can lower blood pressure and myocardial fibrosis by suppressing inflammatory responses. However, there is no standard clinical trial to confirm this and whether SQG can improve endothelial cell function is unknown. Methods: In this randomized, double-blind, double-simulation controlled trial, 300 patients with stage I or Ⅱ hypertension were recruited and randomly allocated in a 1:1:1 ratio to group A(treatment with SQG and placebo of Cozaar), group B(treatment with Cozaar and placebo of SQG),and group C(treatment with SQG and Cozaar). Each group will receive SQG(or its placebo) and Cozaar(or its placebo). SQG(or its placebo) will be administrated twice a day at the doze of 10g each time, and 50mg Cozaar(or its placebo) will be administrated once in the morning. The primary outcome is the composite index of blood pressure and flow-mediated dilation(FMD). Efficacy rates were compared among the three groups. Effective standard need to satisfy the blood pressure effectively and FMD value decreased by 2%. The secondary outcomes include target organ damage assessment, symptom improvement assessment(Hypertension symptom scale, TCM syndrome integral scale, Pittsburgh sleep quality index scale, Self-Rating Anxiety Scale(SAS) and Self-rating depression scale(SDS), The Short Form-36 Health Survey(SF-36)), cardiovascular risk factors assessment, vascular endothelial function assessment. Discussion: This study will provide evidence for the effectiveness and safety of SQG and provide evidence to identify whether SQG improves endothelial cell function as compared with Cozaar in treating hypertensive patients. Trial registration: Chinese Clinical Trials Registry, ChiCTR1800016427. Registered on 1st June 2018. http://www.chictr.org.cn/edit.aspx?pid=27688&htm=4