bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH SENYAWA PENGOTOR Ca DAN Mg PADA EFISIENSI PENURUNAN KADAR U DALAM AIR LIMBAH
Authors: Sardjono Ignatius Djoko , Poernomo Herry
Published: May 2019

PENGARUH SENYAWA PENGOTOR Ca DAN Mg PADA EFISIENSI PENURUNAN KADAR U DALAM AIR LIMBAH. Telah dilakukan penelitian pengolahan air limbah uranium yang mengandung senyawa pengotor Ca dan Mg dengan pertukaran ion. Penelitian secara eksperimental ini dilakukan dengan menggunakan kolom gelas berdiameter 1,1 cm yang diisi dengan 4 gram resin jenis Dowex 50W-X8(Na). Umpan yang berupa larutan uranium berkadar 100 ppm dengan pH= 4 dan pengotor Ca serta Mg yang kadarnya bervariasi dari 25, 50, 75 dan 100 ppm dialirkan ke dalam kolom resin dengan pompa masterflex dengan kecepatan alir tetap 2,5 ml/menit. Kadar efluen uranium yang keluar dari kolom resin dianalisis menggunakan spektrofotometer dengan memakai arsenazo sebagai pengompleks. Dari data kadar U yang masuk dan keluar dari kolom resin dapat ditentukan nilai penurunan efisiensi kadar U. Dari data penelitian diperoleh bahwa nilai penurunan efisiensi pemisahan kadar U yang dicapai dengan pengotor Ca dari 99,1% ke 92% sedangkan untuk pengotor Mg dari 97,8 % ke 94%.
DESAIN DAN KONSTRUKSI CORONG PEMAYAR MESIN BERKAS ELEKTRON
Authors: Suprapto Suprapto , Sudjatmoko Sudjatmoko , Atmodjo Setyo , Sukaryono Sukaryono , Sukidi Sukidi
Published: May 2019

DESAIN DAN KONSTRUKSI CORONG PEMAYAR MESIN BERKAS ELEKTRON. Telah dilakukan desain dan konstruksi corong pemayar mesin berkas elektron. Dalam mesin berkas elektron, corong pemayar digunakan untuk melewatkan berkas elektron. Agar dapat berfungsi dengan baik maka harus divakumkan sampai 10-6 mbar. Desain ini adalah untuk menentukan jenis dan demensi material dalam pengkonstruksian corong pemayar sehingga jika divakumkan tidak terjadi defleksi. Dari hasil desain dan konstruksi corong pemayar didapatkan hasil rancangan dalam bentuk gambar susunan dan detil serta konstruksi bagian-bagian corong pemayar untuk mesin berkas elektron. Menurut perhitungan untuk konstruksi corong pemayar digunakan bahan stainless steel 316 L. Agar didapatkan defleksi yang terjadi kurang dari 4 mm digunakan sirip penahan stainless steel 316 L dengan tebal 10 mm sebanyak 12 buah. Dalam konstruksinya untuk sirip penahan ke 7 sampai ke 12 digunakan stainless steel 316 L tebal 20 mm. Hasil pengujian menunjukkan bahwa defleksi maksimum terjadi pada sirip penahan ke 5 dan ke 10 yaitu sebesar 1 mm sehingga jauh lebih kecil dibanding yang direncanakan. Tingkat kevakuman akhir dengan pompa rotari saat masih terjadi kebocoran adalah 5×10-1 mbar dan setelah diperbaiki sehingga kebocoran tidak terjadi adalah 6,6×10-2 mbar. Pengujian tingkat kevakuman akhir dengan pompa difusi saat masih ada kebocoran tidak dapat dilakukan, sedangkan setelah diperbaiki sehingga tidak terjadi kebocoran adalah 5×10-4 mbar. Tingkat kevakuman akhir yang dapat dicapai baik dengan pompa rotari maupun pompa difusi hampir mendekati kemampuan pompa ratari dan pompa difusi yang digunakan.
PENENTUAN KETIDAKPASTIAN ANALISIS Ti,V, Al, Mn, Cl, Ce, Cr, Cs, Sc, Co, Fe, DAN Ca DALAM SAMPEL PADAT SECARA AANI MENGGUNAKAN STANDAR ADISI SESUAI ISO 17025
Authors: Sumining Sumining , Taftazani Agus
Published: May 2019

PENENTUAN KETIDAKPASTlAN ANALlSIS Ti, V, Cl, Ce, Cr, Cs, Sc, Co, Fe, dan Ca DALAM SAMPEL PADAT SECARA AANI MENGGUNAKAN STANDAR ADISI SESUAl SNI-I7025. Telah ditentukan ketidakpastian dalam analisis unsur-unsur Ti, V, Cl, Ce, Cr, Cs, Sc, Co, Fe, dan Ca, dalam sampel padat secara AANI (Analisis Aktivasi Neutron Instrumental) dengan metode komparatif dan standar adisi di P3TM BATAN. Sebagai contoh telah disajikan perhitunlgan ketidakpastian analisis unsur Ti. Ketidakpastian dalam INAA berasal dari cara sampling, preparasi sample, preparasi standar, irradiasi dan pencacahan. Sampel dalam percobaan ini diperoleh dari IAEA sudah siap analisis sehingga hanya faktor-faktor, preparasi sampel, preparasi standar, irradiasi dan pencacahan yang dipertimbangkan. Analisis dilakukan secara relatif, sampel maupun standar diirradiasi bersama-sama dalam satu kelongsong agar ketidakpastian dari faktor-faktor irradiasi (meliputi lama irradiasi, fluks neutron, geometri irradiasi), dan sifat-sifat isotopik dapat tereliminasi. Ketidakpastian yang diperoleh dari faktor pencacahan meliputi ketidakpastian dari peluruhan nuklida selama periode pencacahan, hilangnya pulsa karena penjumlahan random, geometri pencacahan. dan laju cacah. Cara relatif ini juga menyebabkan perbedaan waktu pencacahan (diatur dengan alat yang sama), perbedaan geometri pencacahan, ketebalan sampel, fluks neutron, waktu irradiasi dapat teriliminasi. Hasil fisi tidak ada karena tidak terdeteksi adanya uranium dalam sampel yang dianalisis. Tidak adanya perubahan jumlah nuklida target karena selama irradiasi tidak terjadi pembakaran, dan perubahan status kimia tidak mempengaruhi hasil analisis.
La marcha del hambre. Epopeya de los maestros y maestras del Magdalena Grande. Estrada Pacheco Carlos Rafael. Proseguir Ediciones, Bogotá, 2006, 199 p.
Authors: Vásquez Arrieta Tomás Antonio
Published: May 2019

En 2006 se cumplieron 40 años de la histórica Marcha del Hambre (Santa Marta Bogotá, septiembre-octubre de 1966), organizada y llevada a cabo por los educadores el Magdalena en señal de protesta por las lamentables condiciones económicas y políticas en las que ejercían su labor pedagógica. Sin duda este hecho trascendió el ámbito regional y constituyó un hilo en las luchas del magisterio colombiano en procura de su reconocimiento corno profesionales de la educación en un momento en que ésta era manejada al acomodo y para el beneficio de los políticos regionales que, aprovechando la ausencia de políticas educativas nacionales claras, era dirigida y administrada por los criterios y estilos de los gobernantes regionales, costumbre bastante arraigada y extendida hoy a los ámbitos de la actividad política y económica. Pero, ante todo, fue la presión de la difícil situación económica el elemento detonante que empujó a los maestros a abandonar las aulas y emprender una jornada de tomas de instalaciones públicas, huelgas, marchas por las calles y, finalmente, tomar la ruta de las carreteras del país, a pie, rumbo a Bogotá. De allí el nombre de Marcha del Hambre.
La investigación llamada “cualitativa”: de la dinámica de su evolución a los logros innegables y cuestionamientos presentes
Authors: Anadón Marta
Published: May 2019

Este documento articula una reflexión sobre los logros de la investigación denominada "cualitativa" y que no son independientes del contexto general que ha orientado el desarrollo de las Ciencias sociales y humanas. En particular, apunta a mostrar que los enfoques cualitativos han consolidado su dimensión epistemológica y su legitimidad científica. Las elecciones metodológicas de recolección de datos y los modos de interpretación y de análisis se han también estabilizado dando a la comunidad científica sólidos puntos de referencia. Este balance nos lleva a reflexionar sobre sus logros porque los enfoques cualitativos, preocupados por comprender una pluralidad de formas de expresión humana (artes, danza, literatura y otras formas estéticas), sufren actualmente de un estallido en las formas de hacer la investigación y de legitimar el conocimiento producido.
Efeitos da pressão positiva contínua e de dois níveis na via aérea em edema agudo de pulmão cardiogênico: uma revisão sistemática
Authors: Brito Fernanda Cardoso , Martinez Bruno Prata , Neto Mansueto Gomes , Saquetto Micheli Bernadone , Conceição Cristiano Sena , Silva e Silva Cássio Magalhães
Published: May 2019

INTRODUÇÃO: O edema agudo de pulmão cardiogênico (EAPC) representa uma importante causa de insuficiência respiratória aguda podendo ser atenuada com a instalação de ventilação mecânica não-invasiva (VNI). OBJETIVO: Comparar pressão positiva contínua (CPAP) e pressão positiva de dois níveis (BIPAP) na via aérea em pacientes adultos com EAPC, quanto à função pulmonar, ao tempo de permanência, suas complicações e a dispneia através de uma revisão sistemática. METODOLOGIA: Ensaios clínicos controlados e randomizados (ECR), revisados por dois revisores independentes, conforme recomendações PRISMA, nas bases de dados PubMed e Biblioteca Cochrane. Incluídos estudos originais que utilizaram a CPAP e a BIPAP em pacientes com EAPC publicados na língua inglesa. A Escala PEDro foi utilizada para analisar a qualidade metodológica dos estudos e a Cochrane Collaboration para análise de risco de viés. RESULTADOS: Foram incluídos 13 artigos, publicados entre os anos 1997 e 2014. Os níveis de CPAP variaram entre 5 e 20 cmH2O nos estudos, e BIPAP apresentou-se com pressão inspiratória positiva (IPAP) entre 8 e 20 cmH2O e pressão expiratória positiva (PEEP) entre 3 e 10 cmH2O. Os estudos apresentaram CPAP e BIPAP sem diferença estatisticamente significante para a melhora da função pulmonar (FR, PaO2 e PaCO2), tempo de internamento, taxas de mortalidade, entubação e infarto agudo do miocárdio (IAM); mostrando-se como modalidades igualmente eficazes. CONCLUSÃO: CPAP e a BIPAP garantem os mesmos efeitos para melhora da função pulmonar, não mantém relação com a permanência da internação e complicações, e melhoram o quadro de dispneia.
“SER PROFESSOR”: quem sou eu e porquê?
Authors: Aleluia Iêda , Vilas Boas Lígia , Brasil Sandra , Zaidhaft Sérgio
Published: May 2019

INTRODUÇÃO: Ser profissional da saúde e simultaneamente docente, abrange diferentes campos de conhecimento e distintas identidades profissionais, atuando na formação do futuro profissional de saúde. Compatibilizar esses campos constitui assim uma questão essencial. OBJETIVOS: Entender o processo de formação da identidade docente, seu profissionalismo e cotejar nossos dados analiticamente com a literatura. METODOLOGIA: A partir de uma oficina com duração de 04 horas de discussão, destinada a professores do curso de medicina, perguntou-se sobre suas motivações para a docência, sobre suas dificuldades e estratégias desenvolvidas para sua superação. Além de médicos, outros profissionais não médicos foram envolvidos. RESULTADOS: 21 professores participaram. As motivações identificadas foram: 1. Identificação; 2. Renovação. As dificuldades relatadas foram: 1. Dificuldade de equilibrar vida profissional e pessoal; 2. Diferenças geracionais; 3. Remuneração. Estratégias identificadas: 1. Melhor uso do tempo; 2. Renovação pessoal; 3. Senso de humor; 4. Aprendizado sobre novas tecnologias; 5. Compartilhamento de problemas na busca de soluções. DISCUSSÃO: Este trabalho propiciou a criação de um espaço de discussão sobre significado profissional, identificando suas motivações e dificuldades encontradas. Desenvolveu-se assim a busca de um novo olhar para atuação do docente da área de saúde. CONCLUSÕES: A experiência mostrou que a promoção de oportunidades de reflexão do papel docente, de sua identidade, construída na prática, e a importância do envolvimento institucional, é fundamental na promoção destas atitudes.
Vandy - Exercise Stress Test v1
Authors: Lantier Louise
Published: May 2019

Summary: The exercise stress test is a maximal exercise test used to calculate VO2 max. Mice are run to complete exhaustion as the treadmill speed is increased every three minutes (See table 1). During the test, direct measurements of the oxygen consumption and carbon dioxide output by the mouse are made, which are then used to calculate VO2 max, VCO2, and RER. VO2 max refers to the maximum amount of oxygen that the mouse can utilize during maximal exercise.
Vandy - Hyperinsulinemic-euglycemic Clamp v1
Authors: Kang Li
Published: May 2019

Summary: Mice with catheters implanted in the jugular vein (infusions) and carotid artery (sampling) are used for this procedure (V3002). The hyperinsulinemic, euglycemic clamp or “insulin clamp” has been used in a variety of species to assess insulin action. In an insulin clamp, the rate of glucose infused to maintain euglycemia is an index of whole body insulin sensitivity. Isotopes can be used during an insulin clamp to distinguish between insulin’s effects on endogenous glucose production and glucose utilization, or to examine insulin’s effects on specific tissues and metabolic pathways. The insulin infusion rate used in a study depends on a number of factors such as whether the experiment requires a sensitive analysis of endogenous glucose production, or whether the mouse is known to be unusually insulin resistant (e.g. ob/ob). Finally the insulin clamp technique, especially when isotopes are involved, is most quantitative under steady state conditions. Therefore, clamps should be of a duration (~2 h) that is sufficient for the actions of insulin to obtain steady state. The section that follows describes, a) the technical procedures used on the day of a clamp experiment; b) preparation of insulin and tracer infusates; and c) analyses of plasma and tissue radioactivity. Familiarity with these procedures combined with laboratory demonstration provides the investigator with the necessary background to clamp the conscious mouse.
Vandy - Hyperinsulinemic-Hypoglycemic clamp v1
Authors: Kang Li
Published: May 2019

Summary: Mice with catheters implanted in the jugular vein (infusions) and carotid artery (sampling) are used for this procedure (V3002). The hyperinsulinemic hypoglycemic clamp involves a constant rate insulin infusion with a fall in blood glucose that is controlled by feed back from regular glucose measurements. Blood glucose is then clamped at a hypoglycemic level. The hypoglycemic clamp is used to test hypoglycemic counterregulation and the functionality of the hypothalamic-pituitary-adrenal axis.
Vandy - Mouse Myocardial Infarction v1
Authors: Zhong Lin , Rottman Jeffrey , Lim Chee
Published: May 2019

Summary: The most common cause of cardiovascular mortality in man is the outcome from myocardial infarction. Accordingly, it is necesarry to study the corresponding process of heart injury recovery in many mouse models relevant to human cardiovascular disease. This protocoldescribes the surgical induction of myocardial injury via 1) permanent ligation of a coronary artery in the heart (myocardial infarction), 2) cryoinjury, and 3) transient occlusion of a coronary artery followed by reperfusion (ischemia-reperfusion injury).
PROGRAM BIMBINGAN MELALUI BERMAIN UNTUK MENGEMBANGKAN PERILAKU ADAPTIF ANAK USIA TAMAN KANAK-KANAK
Authors: Damaianti Lira Fessia , - Furqon , Yusuf Syamsu
Published: May 2019

This research is to generate a guidance program through playing to increase the development of adaptive behaviour in preschool students. The research used qualitative approach. The subjects were students of Taman kanak-kanak Sekolah Laboratorium (Percontohan) UPI along with their parents. Data were obtained by observing the children and interviewing their parents with Vineland Social Maturity Scale as reference. Data analysis was done by: (1) reducing the data; (2) displaying the data; and (3) concluding. It was shown in this research’s results that students who had received a guidance progrm through playing from their teachers showed a better adaptive behaviour. Teachers as mentors can implement guidance program through playing properly by fulfilling some conditions regarding their ability, attitude, and skills in understanding the meaning and types of guidance. In order to make a guidance program to develop preschool students’ adaptive behaviour, a preschool teacher may follow these steps, a) observing each student’s adaptive behaviour development; b) integrating guidance program through playing into the learning program weekly or daily; c) completing the learning facilities; d) carrying out a guidance program through playing with measurable results. A guidance program that suits the student’s needs is recommended in developing his adaptive ability.
Prevalence and Characteristics of Supernumerary Teeth in Israeli Orthodontic Patients
Authors: Finkelstein Tamar , Shapira Yehoshua , Pavlidi Aikaterini Maria , Schonberger Shirley , Blumer Sigalit , Sarne Ofer , Shpack Nir
Published: May 2019

Background: Supernumerary teeth are one of the most common anomalies in the human dentition, found most frequently in the maxillary anterior region causing impaction or displacement of the adjacent permanent teeth. Aim :The purpose of this retrospective study was to determine the prevalence and characteristics of supernumerary teeth in orthodontically treated patients. Study design: Pre-treatment facial and intraoral photographs, study models, panoramic and periapical radiographs of 3,000 consecutively treated orthodontic patients (mean age 12.2 years) from the Department of Orthodontics Tel Aviv University, were examined to detect supernumerary teeth in both arches. They were recorded according to gender, age, number, location, position and morphology. Results: Thirty-six patients, 22 (61%) males and 14 (39%) females with 50 supernumerary teeth, of which 42 (84%) were found in the maxillary anterior region, and 8 (16%) in the mandible, presenting a prevalence of 1.2%. Conclusions: A prevalence of 1.2% was found in our study. The most common supernumerary tooth is mesiodens located at the maxillary anterior region. The characteristics of supernumeraries were based on their morphology, location and position. The most frequent complications caused were rotations, displacement and arrested eruption of maxillary incisors.
Kolegialność działań Rady Ministrów a odpowiedzialność konstytucyjna jej członków w ocenie polskiej doktryny
Authors: Kowalska Monika
Published: May 2019

Odpowiedzialność konstytucyjna należy do kanonów rozwiązań konstytucyjnych współczesnych państw demokratycznych. Jedną z jej cech pozostaje osobisty i ograniczony podmiotowo charakter. Wśród podmiotów podległych kognicji Trybunału Stanu, zgodnie z regulacją polskiej konstytucji, znajdują się jednakowoż funkcjonariusze państwa, wchodzący w skład kolegialnych organów państwa. Stąd zasadnym jest postawienie sobie pytań o możliwość pociągnięcia ich do zindywidualizowanej w swej formie odpowiedzialności konstytucyjnej za działania podjęte z naruszeniem prawa przez kolektywny organ państwa, którego z mocy prawa integralną część stanowią, i o przedstawienie zapatrywań przedstawicieli doktryny prawa konstytucyjnego na powyższe zagadnienie.
Media system in the Republic of Moldova
Authors: Rajczyk Robert
Published: May 2019

W artykule zaprezentowano główne problemy mołdawskiego systemu medialnego, które mają związek przede wszystkim z poziomem rozwoju systemu politycznego. Trudno uznać go za stabilny, zwłaszcza w kontekście problemów dotyczących wyboru prezydenta lub też zakwestionowania przez Sąd Konstytucyjny metody elekcji głowy państwa. Innym problemem jest silne upolitycznienie instytucji publicznych, które pozwala wykorzystywać je w walce politycznej. Postępujący proces oligarchizacji gospodarki ma swoje odzwierciedlenie także na rynku medialnym. Dominujący w mołdawskiej gospodarce biznesmeni są natomiast powiązani z konkretnymi grupami politycznymi. Sympatie owe przejawiają się przede wszystkim w selektywności w doborze emitowanych i prezentowanych treści programowych oraz faworyzowaniu określonych opcji politycznych rywalizujących na mołdawskiej scenie politycznej. Przyszłość mołdawskiego systemu medialnego jest ściśle związana z rozwojem mołdawskiej demokracji, która wydaje się być permanentnie w stanie transformacji, a nie konsolidacji systemowej. Zdominowanie mediów przez grupy polityczno-biznesowe prowadzi zaś do zaniku kontrolnej funkcji środków masowego przekazu i wtłoczenia ich w pojedynki na narracje propagandowe.
Characteristics of the Belarusian media system
Authors: Pavel Usov
Published: May 2019

W artykule przedstawiono kształt, strukturę i funkcję systemu medialnego na Białorusi, który w sposób faktyczny jest zależny od reżimu politycznego. W związku z tym białoruskie media można podzielić na systemowe (działające na zlecenie i w interesie władzy) oraz pozasystemowe, które tworzą i przedstawiają informację alternatywną. W tekście opisano techniki kontroli funkcjonowania mediów państwowych oraz omówiono represyjną politykę władz wobec mediów niezależnych. Analiza białoruskiego rynku medialnego oraz przestrzeni informacyjno-komunikatywnej nie byłaby pełna bez oceny roli i miejsca rosyjskich mediów w procesie kształtowania opinii publicznej Białorusinów. Wątek ten oraz polityka medialno-informacyjna autorytarnego reżimu robi się ważną i aktualną dla Białorusi w świecie wydarzeń w Ukrainie, kiedy media rosyjskie stały się głównym narzędziem w tak zwanej wojnie hybrydowej.
La construcción de iglesias en Alemania durante los siglos XX y XXI
Authors: Zahner Walter
Published: May 2019

Es una especie de fenómeno. Desde hace unos veinticinco años, en Alemania —y también en toda Centroeuropa y gran parte del sur de Europa— se construyen cada vez menos iglesias, y sin embargo el debate sobre la construcción de iglesias no se ha interrumpido, incluso se ha reforzado. Esto responde, seguramente, a varios motivos.

Hace pocas semanas ha aparecido en el mercado literario alemán la reedición de un libro publicado por primera vez hace cuarenta y siete años: «Kirchenbau. Welt vor der Schwelle» (La construcción de iglesias. El mundo ante el umbral). La editorial lo está promocionando diciendo que la obra fundamental del famoso arquitecto Rudolf Schwarz está de nuevo disponible.

Pero antes de mencionar ejemplos de la arquitectura religiosa en Alemania quiero adelantar algunos pensamientos teológicos al respecto. ¿Qué es una iglesia? ¿Qué cosas la componen? ¿Qué la determina?
La arquitectura del Cuerpo Místico
Authors: Schloeder Steven J.
Published: May 2019

El tema genérico de este congreso es la arquitectura religiosa contemporánea. Y el tema específico nos pide considerar la arquitectura sacra contemporánea dentro de un marco dialéctico entre el concepto y la identidad. Para mí, el término clave es contemporánea: de nuestra época. Esto parece presuponer una particular consciencia histórica: de lo que entendemos —o al menos de lo que creemos— que nuestro lugar concreto en la historia exige u obtiene: un modo de pensar sobre la arquitectura sacra que sea respetuoso con nuestra situación contemporánea. Esto también sugiere que nuestra respuesta actual bien pudiera ser diferente de la de épocas pasadas.

Pero cada época es contemporánea. Y todo lo que podemos hacer es arquitectura contemporánea. Simplemente no podemos pensar en arquitectura excepto como contemporáneos de nuestra propia época. Ya no podemos transformar la piedra en escultura con la visión y la mente de un cantero medieval. Ni estamos ya ocupados con las polémicas de la Contrarreforma que conformaron las magníficas iglesias barrocas. Ya no estamos involucrados en los debates cristológicos que influenciaron las arquitecturas de las iglesias en la época de Justiniano. Ni el movimiento del Gothic Revival se entiende como una interpretación moderna de un auténtico edificio medieval. Ni el clasicismo renacentista puede ser ya confundido con el de un antiguo templo griego o romano, así como ninguna de esas iglesias contemporáneas neoclásicas se podría confundir con la obra de un genio del Renacimiento, como Paladio, Bramante o Alberti. Así que yo creo que la fascinación por el concepto contemporáneo es problemática.

A pesar de todo, esta cuestión de la arquitectura sacra contemporánea parece ser el núcleo dialéctico en el que se han enzarzado los arquitectos y liturgistas durante los últimos cien años, más o menos. He de señalar que necesitamos respetar las particularidades de nuestra época, y que es útil examinar en qué grado deberían influir en nuestra toma de decisiones, y qué valores se están introduciendo en nuestra aproximación a la arquitectura sacra. Pero el grado hasta el que podrían influenciar nuestra aproximación a la arquitectura sacra es mucho más limitado.
La renovación de la arquitectura eclesiástica en el siglo XX-XXI latinoamericano
Authors: Pérez Oyarzun Fernando
Published: May 2019

Los cambios que sufren las iglesias católicas —y más en general, una porción muy significativa de los edificios religiosos durante el siglo XX— son fruto de un complejo encuentro entre la radical renovación que se lleva a cabo en la arquitectura moderna, como una de las respuestas al complejo proceso de renovación de nuestra cultura, y los cambios producidos al interior de la Iglesia Católica, incluyendo una nueva consciencia teológica, una nueva interpretación de las fuentes bíblicas, y significativas modificaciones en la praxis religiosa que expresa una relación nueva entre la fe y el mundo. Ciertamente, el Concilio Vaticano II constituye un episodio fundamental en este último proceso. Es en este contexto que me propongo examinar algunos rasgos específicos de esa renovación de la arquitectura sacra en América Latina.
Metrics of clonidine utilization in maintenance hemodialysis patients
Authors: M. Sarita , K. Praveen Kumar , P. Rama Mohan
Published: May 2019

Background: Clonidine is less frequently used by nephrologists. Data on clonidine prescribing trends in hemodialysis patients is sparse. We assessed the clonidine utilization metrics from the case records of patients undergoing maintenance hemodialysis.Methods: In this retrospective chart review, we analysed the clinical records of hemodialysis patients using clonidine. We evaluated the frequency of clonidine use, mean dose of clonidine and percentage of patients receiving a particular dose. Additionally, we also correlated dose of clonidine with anti-hypertensive pill count.Results: A total of 70 hemodialysis patients case records were screened. All 70/70 (100%) of them were hypertensive. Only 25/70 (35.74%) of patients were prescribed clonidine as an anti-hypertensive agent. The mean clonidine dose was 352±171 µg. Majority of patients 9/25 (36%) received 400 µg of clonidine. The dose of clonidine was prescribed in the order 400 µg (36%)>200 µg (32%)>600 µg (16%)>100 µg (8%)>300 µg (4%)=700 µg (4%). There was a statistically significant correlation in the strength of clonidine prescribed with increasing anti-hypertensive drugs (p<0.05).Conclusions: In our study, we observed that 80% of our hemodialysis patients were non responders to either systolic blood pressure or diastolic blood pressure or both. Oral clonidine use was observed in 35.74% of our hemodialysis patients. There was a linear trend showing an increased dose of clonidine with an increase in the anti-hypertensive pill count.
SPACE ROCKET COMPLEX PROJECT ON THE BASIS OF A SUPER-LIGHT CLASS ROCKET-CARRIER
Authors:   Experimental Design Bureau ", Kosmodemyansky E. ,   Fakel", Nagiev A. ,   JSC «SRC «Progress», Izratov D. ,   JSC «SRC «Progress», Kirpichev V. ,   Samara National Research University, Davydov P. ,   TSNIIMASH, Markarova A. ,   JSC “Khrunichev State Research and Production Space Center”, Kozlova I. ,   JSC “Khrunichev State Research and Production Space Center”, Okutin A. ,   JSC "Scientific-Production Association of Automatics", Pustovalov A. ,   JSC “State Rocket Center named after Academician V.P. Makeev"
Published: May 2019

The article reviews the need of the rocket and space industry for rocket carrier (RC) intended for launching small spacecraft (SSC), namely in the RC of the superlight class (RC SLC). The most famous foreign projects of ultralight class launch vehicles, their features and characteristics are described. They were compared with the proposed RC SLC "Akvilon" on the main technical and economic indicators. The possibility of testing and applying the new technological and structural solutions on the proposed RC SLC "Akvilon" is considered: application in the design of polymer composites (carbon fiber-reinforced plastics in the design of both dry compartments and with the use of special wall coating, fuel tanks; carbon-graphite plastics in the design of high-heat loaded elements: combustion chambers, cusps of the head fairing, fairing of the 1st accelerator and front edges of the wing consoles (in the reusable configuration)); the use of additive technologies in the manufacture of the propulsion system, power elements using topological optimization at the stage of their design; new components of fuel, which allow to reduce the cost of fuel and the maintenance of the remote control of the launch vehicle during post-flight diagnostics, as well as to improve the energy characteristics of the launch vehicle and significantly simplify the layout of the compartments of the launch vehicle and the cooling system for the walls of the combustion chamber; creation of the returned and reused as a result of operational semi-automatic post-flight diagnostics of the 1st rocket unit. A new approach to research in this direction is the use of an integrated approach to examining current trends in the field of rocket production and taking into account the current state of the launch services market.
LOGICAL-SYSTEM SEQUENCES IN SCIENTIFIC PROJECTS
Authors:   Research and Design Institute of design information, automation and communication on railway transport, Tsvetkov V. , Kozlov A. ,   Institute of Information Technologies of Moscow Technological University (MIREA)
Published: May 2019

The article explores logical methods in the implementation of scientific projects. Paper describes the logical scheme of a scientific project. The basis of logical analysis is the language of propositional calculus and the language of predicates. Scientific research transforms the initial information set into a structured system of knowledge. Logical analysis determines the domain of truth of the knowledge system. Logic-system research forms the structure of the knowledge system. The system approach identifies a part of the set, which according to Narinyani is called «not a system». The information included in the «non-system» is divided into «antagonism» and uncertainty. Scientific research has two directions of research: «in depth» and «in width». The direction «in depth» is aimed at achieving the goal from the initial position of research to the final one. The «breadth» direction is aimed at expanding research at each stage irrespective of the final goal. These directions are realized by revealing and using paradigmatic and syntagmatic relations. Scientific research always solves the problem of finding a compromise between the deepening of research and the measure of its expansion. Paradigmatic relations are the basis for constructing the semantic space of the field of study. The semantic space of scientific research contains a set of categories and connections between them that describe the content of the field of scientific research. It can be considered as a semantic cluster, logical-system sequences link system analysis and logic. They serve as the basis for the formation of a knowledge system.
Massive Ovarian Oedema: A Misleading Tumour
Authors: Escayola C  , Ripoll G  , Cardesa A  , Torrent JJ
Published: May 2019

Massive ovarian oedema is a rare entity, non-neoplastic tumor of the ovary. We report a case of massive ovarianoedema (MOO) in a 18-year-old female who presented with abdominal pain along with large solid pelvis mass. It iswidely accepted that MOO results from the incomplete torsion of the ovary causing accumulation of fluid within the stroma and enlargement of the ovary. Awareness of this rare lesion due to its lack of pathognomonic features may allow surgeons to a conservative management preventing unnecessary oophorectomy in young patients.
Analysis of the Stability of the Chemical Composition of Wastewater in the Production of Printed Circuit Boards
Authors: Klyachkin V.N. , Shirkunova K.S. , Bart A.D.
Published: May 2019

A method for analyzing the stability of the chemical composition of wastewater in the manufacture of printed circuit boards using statistical methods of process control is proposed. The correlation and normal distribution of the monitored indicators is evaluated. Types of control charts are selected that provide control of both the average level of the process and its dispersion. To control the stability of independent indicators, Shewhart charts are used. Monitoring of correlated indicators is carried out using the Hotelling control chart. If it is necessary to control the multidimensional dispersion of the process, generalized variance charts can be used. The proposed approach ensures the detection of process violations before the monitored indicators are out of tolerance.
THE USAGE OF MASSIVE OPEN ONLINE COURSE (MOOC) IN TEACHING AND LEARNING AMONG STUDENTS
Authors: Hamzah Norhasyimah , Asyida Wan Roosli Wan Nurul , Ismail Mohd Erfy , Ariffin Arihasnida
Published: May 2019

Purpose of Study: Technology-based education methods have an interest in ensuring Malaysia's position in the global rankings. Furthermore, the government intends to raise the level of online learning globally. Massive Open Online Course (MOOC) is a platform that allows the government’s intention to be successfully achieved. This study aims to identify students’ level of knowledge on the importance of the use of MOOC and on the application of MOOC in teaching and learning. It also intends to identify the students’ level of acceptance of MOOC and the level of its effectiveness in teaching and learning. A total of 247 users of MOOC from Universiti Teknologi Malaysia (UTM) were sampled in this study.

Methodology:  The data were collected using a set of questionnaire and were analyzed using the Statistical Package for Social Science (SPSSv 21).

Results: Results showed that the level of knowledge, usage, acceptance, and effectiveness was high among the students. From the findings, some suggestions were made to future researchers and the parties involved in university management.

Implications/Applications: The finding noted a high level of the students’ knowledge about the importance of MOOC in teaching and learning, the students’ use of the application of the MOOC in teaching and learning, as well as their acceptance on the use of MOOC. This indicates that the use of teaching and learning in blended learning through the MOOC platform can be received by the students.
Chromosome synapsis, recombination and epigenetic modification in rams heterozygous for metacentric chromosome 3 of the domestic sheep Ovis aries and acrocentric homologs of the argali Ovis ammon
Authors: Bikchurina T. I. , Tomgorova E. K. , Torgasheva A. A. , Bagirov V. A. , Volkova N. A. , Borodin P. M.
Published: May 2019

Hybridization of domestic animal breeds with their wild relatives is a promising method for increasing the genetic diversity of farm animals. Resource populations derived from the hybridization of various breeds of domestic sheep with mouflon and argali are an important source of breeding material. The karyotypes of argali and domestic sheep differ for a Robertsonian translocation, which occurred in the common ancestor of mouflon and domestic sheep (Ovis aries) due to the centric fusion of chromosomes 5 and 11 of the argali (O. ammon) into chromosome 3 of sheep. It is known that heterozygosity for translocation can lead to synapsis, recombination and chromosome segregation abnormalities in meiosis. Meiosis in the heterozygotes for translocation that distinguishes the karyotypes of sheep and argali has not yet been studied. We examined synapsis, recombination, and epigenetic modification of chromosomes involved in this rearrangement in heterozygous rams using immunolocalization of key proteins of meiosis. In the majority of cells, we observed complete synapsis between the sheep metacentric chromosome and two argali acrocentric chromosomes with the formation of a trivalent. In a small proportion of cells at the early pachytene stage we observed delayed synapsis in pericentromeric regions of the trivalent. Unpaired sites were subjected to epigenetic modification, namely histone H2A.X phosphorylation. However, by the end of the pachytene, these abnormalities had been completely eliminated. Asynapsis was replaced by a nonhomologous synapsis between the centromeric regions of the acrocentric chromosomes. By the end of the pachytene, the γH2A.X signal had been preserved only at the XY bivalent and was absent from the trivalent. The translocation trivalent did not differ from the normal bivalents of metacentric chromosomes for the number and distribution of recombination sites as well as for the degree of centromeric and crossover interference. Thus, we found that heterozygosity for the domestic sheep chromosome 3 and argali chromosomes 5 and 11 does not cause significant alterations in key processes of prophase I meiosis and, therefore, should not lead to a decrease in fertility of the offspring from interspecific sheep hybridization.
Does Grain Actually Predispose Our Cats to Gain Weight?
Authors: Gomez-Mejias Yaiza
Published: May 2019

PICO question

In adult cats, does feeding grain free maintenance diet reduce the risk of obesity compared to feeding a maintenance diet containing grains?

Clinical bottom line

There is no evidence showing feeding grain free maintenance diet reduces the risk of obesity compared to feeding a maintenance diet containing grains.

  
Passenger flow dynamics analysis of “Sapsan” trains and air transport at Moscow–Saint Petersburg railway line up to 2025
Authors: Bushuyev Nikolay , Shulman Darina , Sagaidak Kristina
Published: May 2019

Objective: To analyze passenger flow trends of “Sapsan” trains and air transport on “Moscow–Saint Petersburg” direction; to forecast passenger flow of the given types of transport taking into account economic activity and tourism in Moscow and Saint Petersburg for the period of 2010 through to 2025; to calculate the predicted values of passenger flow at the given direction. Methods: Correlation and multiple regression analysis were applied. Results: The trends of passenger flows of “Sapsan” trains were analyzed for the period in question and of air transport for the period of 2010 through to 2018 on the route Moscow–Saint Petersburg. Special attention is paid to the design of passenger flow forecast mathematical model with allowance for its dependence on social and economic factors in the operating domain under study. Statistical data on the occupancy of hotels in Moscow and Saint Petersburg was selected as the factors in question; the former characterize mainly tourist passenger flow section as well as gross regional product which reflect the economic development and economic activity of the cities. Passenger flow forecast of the described types of transport was carried out for the period up to 2025. Practical importance: The conclusion was made on feasibility of studies in the sphere of passenger traffic forecast, especially under the conditions of changing tourist and economic activity on the given route, as well as strong competition among the studing types of transport in question.
Aplikasi Kitosan Emerita sp. Sebagai Bahan Pengawet Alternatif pada Ikan Belanak (Mugil cephalus)
[Chitosan Emerita sp. as a Preservative Alternative in Mugil cephalus]
Authors: Wittriansyah Khoeruddin , Soedihono Soedihono , Satriawan Dodi
Published: May 2019

AbstrakEmerita sp. dapat diolah kitosan sebagai alternatif bahan pengawet ikan. Tujuan penelitian ini adalah untuk mengetahui aktivitas kitosan Emerita sp. dalam menghambat pertumbuhan mikroorganisme pembusuk pada ikan sehingga dapat digunakan sebagai bahan pengawet alternatif. Sampel Emerita sp. diperoleh dari pesisir pantai Widarapayung,Cilacap. Karakteristik kitosan Emerita sp. dianalisa melalui uji FTIR dan uji proksimat. Aktivitas kitosan Emerita sp. sebagai pengawet ikan, dianalisa melalui uji organoleptik dan uji Total Plate Count (TPC). Ikan belanak direndam dalam larutan kitosan Emerita sp. pada konsentrasi 0,5%, 1,5%, dan 2%. Lama waktu perendaman yaitu 15 menit, 30 menit dan 60 menit. Pengamatan kemunduran mutu dilakukan pada jam ke 0, 10, 15 dan ke 24. Kontrol menggunakan asam asetat 1% dengan perendaman selama 15 menit. Hasil penelitian menunjukkan Nilai Derajat Deasetilisasi (DD) kitosan Emerita sp. adalah 92,5%. Hasil terbaik uji organoleptik ditunjukan pada kosentrasi kitosan 0,5 % dengan lama perendaman selama 60 menit dibandingkan kontrol. Uji (TPC) menunjukkan ikan dengan perendaman kitosan Emerita sp. 2% selama 60 menit, memiliki jumlah bakteri lebih rendah (2,7x106) daripada kontrol (3,2 x106). Bedasarkan hasil uji TPC dan Organoleptik, kitosan Emerita sp. memiliki aktivitas penghambat pertumbuhan mikroorganisme sehingga dapat digunakan sebagai alternatif bahan pengawet.AbstractEmerita sp. can be processed into chitosan as an alternative to fish preservatives. The purpose of this study was to determine chitosan from Emerita sp. in inhibiting the growth of decomposing microorganisms in fish so it can be used as alternative preservatives. Emerita sp. was obtained from the coast of Widarapayung, Cilacap. Characteristics of chitosan from Emerita sp. was analyzed through FTIR profileand proximate content. The activity of chitosan from Emerita sp. as a fish preservative, analyzed through organoleptic and total plate count (TPC) test. Bluespot mullet fish was soaked in chitosan from Emerita sp. at concentrations of 0.5%, 1.5%, and 2%. Soaking process took was 15, 30 and 60 minutes. Observations on fish decay was conducted at the hour of 0, 10, 15 and 24. Control used 1% of acetic acid with soaking process for 15 minutes. The results of the study showed that the degrees of deacetylization (DD) chitosan from Emerita sp. is 92.5%. The best results of organoleptic were shown on 0.5% chitosan concentration with 60 minutes soaked time compared to controls. TPC shows fish with the soaking process in chitosan Emerita sp. 2% for 60 minutes, having a lower number of bacteria (2,7x106) than the control (3,2 x106). Based on the results of the TPC and organoleptic test, chitosan Emerita sp. has activity inhibiting the growth of microorganisms so that it can be used as an alternative preservative.
System Dynamics Simulation Model to Increase Paddy Production for Food Security
Authors: Aprillya Mala Rosa , Suryani Erma , Dzulkarnain Anisa
Published: May 2019

Background: Food security is a world problem that often affects developing countries, one of them in Indonesia. Along with the increasing population growth population in Indonesia, this will affect the level of demand for rice for food needs. The problem of rice consumption and its fulfillment is an important agenda. If Indonesia does not want to depend on rice imports, then paddy production must continue to be increased. Therefore, food availability in each region is maintained to realize food security. Objective: The purpose of this study is to analyze the factors that influence the increase paddy production in terms of cultivation and postharvest using a system dynamics model approach as the basis for policy strategy preparation.Methods: System Dynamics (SD) approach with the consideration that this framework offers the ability to study and manage complex feedback systems and the ability to model non-linear behavior. Then do a series of decision scenarios to get the best results using computer assistance.Results: Scenario results indicate that increasing paddy production to meet demand in Indonesia can be done by increasing the adoption of postharvest harvesting mechanisms coupled with the application of appropriate GAP (Good Agricultural Practice). It will increase paddy production in East Java so that it will make a large contribution to rice production in East Java.Conclusion: This research can be used to improve paddy production to food security by improving harvesting mechanisms. For further research, we can consider increasing rendement paddy in supporting increased rice production.
The Effect of Service Quality on T-Cash Customer Satisfaction using System Dynamics Framework
Authors: Octabriyantiningtyas Dhyna , Suryani Erma
Published: May 2019

Background: Every year, the number of T-Cash users is increasing significantly. However, the increase is not in sync with the number of T-Cash transactions. In this year, it was noted that active T-Cash users were only 35%. Some clinical studies have established an assessment of the quality of services, there are several dimensions assessed according to the topic of research. The dimensions of service quality used in this study are dimensions of efficiency, reliability, responsiveness, privacy, and security.Objective: This study aims to build general models and simulations in increasing customer satisfaction with the quality of T-Cash services and produce the best scenarios that can be used by policymakers in increasing customer satisfaction.Methods: System dynamics framework is utilized for the development of the model and scenarios. Because by using a system dynamics framework can predict service quality sometime in the future so that it can produce policies for the company.Results: The simulation results are considered valid because they produce E1 values of 3% (E1 valid when E1 ≤ 5%) and E2 of 7% (E2 valid when E2 ≤ 30%). E1 is mean comparison and E2 is error variance. Based on these 2 scenarios, a policy can be taken that scenario 1 significantly increases customer satisfaction compared to scenario 2.Conclusion: Based on the simulation that has been done, it can be concluded that the dimensions of responsiveness, privacy, reliability, security, and efficiency have an effect on improving service quality. On the scenario 1, it can be concluded that with the addition of the user friendliness dimension, the service quality will experience a significant increase over the next 5 years.
Pengaruh Model Pembelajaran Berbasis Masalah dan Regulasi Diri Terhadap Hasil Belajar PKn Kelas V di MI Muhammadiyah Kabupaten Sidoarjo
Authors: Fihayati Zuyyina
Published: May 2019

The role of students is needed to improve student learning outcomes, in this case the students are expected to be able to manage or manage himself. This study aims to prove the difference between problem-based learning model and lecture learning. In addition, it also proves that the use of Problem-Based learning model and lecture learning in children who have high regulation and children who have low regulation of the results of learning Civics and to prove the interaction of the implementation of Learning and self-regulation affect the results of learning Civics class V in MI Muhammadiyah district Sidoarjo. The results of this study indicate 1. There are differences in the results of learning PKN class V by using Problem-Based Learning Model with the use of Lecture Learning in MI MuhammadiyahSidoarjo district; 2. There are differences in the results of Civics learning in grade V children who have high self-regulation and children who have low regulation; 3. There is an interaction of the application of learning and Self Regulation has an effect on the learning result of VII C grade in MI Muhammadiyah of Sidoarjo Regency.