bluuebunny/crossref_metadata_2025 huggingface dataset:
Estimated Guaranteed Life for a System Model with Redundancy of Heterogeneous Elements
Authors: Pavlov I.V. , Razgulyaev S.V.
Published: December 2019

The paper focuses on the problem of confidence estimation of reliability indicators for a system model with loaded redundancy of elements of various sub-systems. The lower confidence limits are constructed for the system reliability function, as well as for the indicator associated with it, the indicator having a given guaranteed level of the system uptime, i.e., its gamma-percentile life. Within the research, we obtained approximate asymptotic --- for the case of high reliability --- expressions for confidence estimates of these basic indicators of system reliability. Rather simple approximate analytical calculation formulas based on these asymptotic expressions are given for the lower confidence boundary of the system reliability function and a similar confidence boundary for the guaranteed system life.
Magnetic Reconnection in the Absence of Three-Dimension Null Point
Authors: Al-Hachami Ali K.H.
Published: December 2019

In this study, a numerical examination is portrayed which explores the idea of 3D reconnection, in the absence of magnetic null points focuses, at a segregated non-ideal region. We center around the subsequent conduct of the magnetic flux, which has been appeared D.I. Pontin et al. (2004), to be on a very basic level diverse in the kinematic routine from the natural two-dimensional conduct. The point of this numerical investigation is to test whether the new properties of 3D kinematic reconnection, depicted by D.I. Pontin et al. (2004) finish to the dynamical routine, where magnetohydrodynamics equations are unraveled. We point likewise specifically to check (or something else) the arrangement by G. Hornig and E.R. Priest (2003) for kinematic 3D reconnection without an magnetic null point.
Study of Properties of "Water–Anionic SAA–Tincture of Blueberry Fruit" System
Authors: Flyurik E.A. , Kohanskaya M.V. , Bushkevich N.V.
Published: December 2019

This study is dedicated to the development of a new shampoo based on plant raw material using water tinctures of high-quality blueberry fruit Vaccinium corymbosum L. We used blueberry fruit of Bluecrop sort, the choice of this variety is based on its popularity and wide spread in the Republic of Belarus. This paper introduces a method of obtaining the tincture of blueberry fruit: the size of crushed raw material is 0.3--1.0 mm; the raw material : extractant ratio is 1 : 10; the extractant is drinking-water; the infusion time is 1 day. We analyzed the complex of biologically active substances in the tincture, contained in it, such as anthocyanins, tannins, carbohydrates, flavonoids. To choose the concentration of anionic SAA, i.e., water solution of sodium laureth sulfate, its foam forming properties in a concentration range of 0.01--5.00 % (ln c from --4.6 to 1.6) were previously determined. It was established that optimal concentration of SAA which provides foam forming properties on the required level for hygienic detergents is 0.02%. The effect of the tincture of blueberry fruit on the properties of water solutions that contain SAA was also investigated. Findings of research show that to meet the requirements for hygienic detergents, which means that the foam number of shampoo should be at least 100 mm, and foam stability should be not less than 80 %, the concentration of the tincture of high-quality blueberry fruit in solution of sodium laureth sulfate should be no more than 10 %.
The Impact of UV Irradiation of Winter Wheat Seeds on Enzymatic Activity in the Germination Period
Authors: Simonova E N , Ayrapetyan M M , Eroshenko A A , Vertiy N S
Published: December 2019

There have been conducted comprehensive studies of the effect of UV irradiation on enzymatic activity in the germination period of winter wheat seeds under different irradiation regimes. They have identified the maximum increase in amylase activity on the fourth day from the beginning of seed germination in variants with three and five minute UV irradiation and this indicator’s value exceeded that of the control variant on 58.6 % and 64.1%, respectively. Catalase activity was of its maximum value by the fourth day from the beginning of seed germination in variants with three and five minute UV irradiation and exceeded the value of the control variant on 14.7% and 17.7%, respectively. Peroxidase activity was of its maximum on the eighth day from the beginning of seed germination in all experimental variants. In a variant with three minute UV irradiation, peroxidase activity exceeded the control values of this indicator on 50% and in a variant with five minute UV irradiation on 55%. The use of a mercury-quartz lamp BNPO 2-30-001U3.5 to stimulate physio-logical and biochemical processes in germinating seeds made it possible to identify different enzymatic activities depending on the time exposure to UV irradiation.
Comparative Study between Wavelet Artificial Neural Network (WANN) and Artificial Neural Network (ANN) Models for Groundwater Level Forecasting
Authors: Kumar Ananda , Babu B Maheshwara , Kumar U Satish , Reddy G.V Srinivasa
Published: December 2019

Groundwater level fluctuation modeling is a prime need for effective utilization and planning the conjunctive use in any basin.The application of Artificial Neural Network (ANN) and hybrid Wavelet ANN (WANN) models was investigated in predicting Groundwater level fluctuations. The RMSE of ANN model during calibration and validation were found to be 0.2868 and 0.3648 respectively, whereas for the WANN model the respective values were 0.1946 and 0.1695. Efficiencies during calibration and validation for ANN model were 0.8862 per cent and 0.8465 per cent respectively, whereas for WANN model were found to be much higher with the respective values of 0.9436 per cent and 0.9568 per cent indicating substantial improvement in the model performance. Hence hybrid ANN model is the promising tool to predict water table fluctuation as compared to ANN model.
Effect of Nitrogen and Phosphorus Levels on Growth and Yield of Finger Millet [Eleusine coracana (L.)] During Summer
Authors: Krishna K Vamshi , Deepthi C H , Reddy M Devender , Raju P S , Pal Arunabha
Published: December 2019

A field experiment was conducted to study the effect of nitrogen and phosphorous on growth and yield of finger millet (Eleusine coracana (L.) at Centurion University, Paralakhemundi during summer (February-May), 2018. The combination of four nitrogen levels (0, 30, 60 and 90 kg ha-1) and three levels of phosphorus (0, 20 and 40 kg ha-1) were tested in Split plot design with three replications. There was a significant improvement in plant height and yield attributes with the application of 90 kg N ha-1 as compared to lower levels of N application. With increase in levels of Phosphorus from 20 and 40 kg ha-1 has significantly increased yield. Significantly higher grain (1054kg ha-1) and straw yield (4369kg ha-1) were recorded with the application of 90kg N ha-1 and 40 kg P2O5 ha-1 while, the minimum yield was observed with 0 kg N ha-1 and 0 kg P2O5 ha-1.
Screening Chickpea Genotypes for Resistance to Rhizoctonia bataticola in Controlled Conditions
Authors: Talekar S C , Viswanatha K P , Lohithasawa H C
Published: December 2019

Among the various biotic stresses, dry root rot caused by Rhizoctonia bataticola is becoming severe in most chickpea growing regions of India where the crop is grown under rain fed conditions causing 30-40 per cent yield loss. In this context, 520 chickpea genotypes were screened in the laboratory condition using Blotter Paper Technique to study the reaction of the genotypes to the Rhizoctonia bataticola and to identify resistance source for the disease. Among 520 genotypes, three were resistant viz., PG 06102, BG 2094 and IC 552137; 21 were moderate resistant viz., IC 15167, IC 2867, JAKI 9218, ICC 9023, ICC-14346, IC-269768, PG 01103, Pule 9801, KGD 120, NbeG 28, WR 315, IC-269488, IC 552198, IC 552178, IC 552132, IC 552320, IC 552214, IC 552232, CLH 29, IC 552102, IC 552224; 76 were moderate susceptible, 337 were susceptible and the rest eighty three were highly susceptible for dry root rot. The identified resistant genotypes may serve as potential donors in chickpea resistance breeding programme for dry root rot.
Effect of Liquid and Charcoal Based Consortium Biofertilizers Amended with Additives on Growth and Yield in Chickpea (Cicer arietinum L.)
Authors: . Anjali , Sharma Poonam , Nagpal Sharon
Published: December 2019

The present study was carried out to compare the shelf life and bio-efficacy of liquid and charcoal based biofertilizers of LGR33+RB1 amended with different additives viz.0.1% CMC, 2% PVP and 10mM trehalose stored at 4oC and 28oC upto 300 days in chickpea. Significantly high viable cell count of bacterial population as well as plant growth promoting (PGP) traits viz. IAA production and P solubilization at an interval of 30 days were recorded in liquid based biofertilizer treatments with additives during the entire study period (300 days) at 4oC and 28oC as compared to charcoal based biofertilizer treatments. However, among different additives amendment with 0.1% CMC showed maximum viable population and PGP traits in both liquid as well as charcoal based biofertilizers. In vivo studies, all liquid as well as charcoal based biofertilizer treatments with additives improved growth parameters in chickpea as compared to recommended consortium treatment without additives. Liquid biofertilizer treatment LGR33+RB1+0.1% CMC recorded maximum plant height, chlorophyll content, number of nodules, dry weight of nodules as well as leghaemoglobin content, soil enzyme activity, total N and P content of shoot and soil along with improvement in grain yield over uninoculated control.
Influence of Different Sources of Plant Nutrients on Soil Fertility, Nutrient Uptake and Productivity of Soybean under Vertisols
Authors: Kumawat Narendra , Tiwari S C , Bangar K S , Khandkar U R , Ashok Awani K , Yadav R K
Published: December 2019

A field experiment was conducted at College of Agriculture (RVSKVV), Indore during kharif 2013 to study the effect of different sources of plant nutrients on productivity, profitability nutrient uptake and soil fertility of soybean in relation to eight nutrient management treatments (T1: RDF- recommended dose of fertilizer (N:P:K:S @ 30:60:30:30 kg/ha), T2: RDF + Rhizobium + PSB (20 g/kg seed), T3: RDF + 50 kg ZnSO4/ha + Rhizobium + PSB, T4: RDF + 1 g (NH4)2MoO4/kg seed + Rhizobium + PSB, T5: RDF + 5 kg Borax/ha + Rhizobium + PSB, T6: RDF + 10 kg FeSO4/ha + Rhizobium + PSB, T7: RDF + 25 kg MnSO4/ha + Rhizobium + PSB and T8: RDF + FYM 5 t/ha + Rhizobium + PSB.). Highest seed yield (844 kg/ha) was obtained under T4, which was at par with T8. The maximum gross returns (`36,376/ha), net returns (`20,132/ha), B:C ratio (2.24), production efficiency (7.47 kg/ha/day) and economic efficiency (`178.16/ha) was also recorded under T4 treatment. Significantly higher nutrient uptake (52.50 and 22.79 kg N, 3.28 and 6.0 kg P, 17.84 and 24.79 kg K, 85.83 and 382.55 g Fe, 67.50 and 313.02 g Mn and 0.27 and 3.96 g Mo/ha by seed and stover, respectively) were obtained under T4. However, the highest uptake of Zn (41.39 and 40.55 g/ha by seed and stover, respectively) was recorded in T3 followed by T8. While the significantly higher uptake of B by seed and stover (24.17 and 40.80 g/ha) was recorded with the application of RDF + 5 kg Borax/ha + Rhizobium + PSB. Application of RDF + FYM 5 t/ha + Rhizobium + PSB (T8) significantly enhanced the available organic carbon (0.40%), N (174.0 kg/ha) and P2O5 (18.67 kg/ha) which was at par with T4. Higher Fe content in soil (4.81 mg/kg soil) was noted with T6, while maximum Mn (2.0 mg/kg soil) was found under T7. Maximum Zn content (0.56 mg/kg soil) was found with the application of T3, whereas, the maximum Mo content (0.048 mg/kg soil) was recorded in T4.
Enhancing Pulse Productivity under Rice Based Production System Through Chickpea and Lentil Based Intercropping Systems in North East India
Authors: Singh N Anando , Sorokhaibam Sakhen , Yumnam Sonika , Konsam Jeti
Published: December 2019

A field experiment was conducted during rainy (kharif) and winter (rabi) seasons of 2014-15, 2015-16 and 2016-17 at Imphal, Manipur, to study the performance of intercropping chickpea (Cicer arietinum L.) and lentil (Lens culinaris Medik.) with linseed (Linum usitatissimum L.) and Indian mustard [Brassica juncea (L.) czernj. and cosson] under 2 varying preceding kharif lowland rice (Oryza sativa L) crop durations and also to evaluate the system productivity and profitability. Planting of medium duration rice variety enhanced growth and yield of rabi crops resulting in increase in system productivity in terms of rice equivalent yield (REY) and production efficiency (PE) by 5.4 %, and 14.5%, respectively over planting of late duration rice variety. Seed and biological yields of chickpea, lentil, Indian mustard and linseed were higher in sole cropping than in intercropping systems. Indian mustard and linseed were found dominant and aggressive as compared to chickpea and lentil. Chickpea and Indian mustard intercropping under 4:2 ratio proved more remunerative and recorded higher yield advantage than either of chickpea and linseed or lentil and Indian mustard intercropping as judged by REY (9.7 tonnes/ha), crop productivity (39.9 kg/ha/ day) and net return (` 81,168/ha). Land equivalent ratio (LER) of chickpea with Indian mustard (1.10) remained at par with intercropping chickpea with linseed (1.17), however, lentil intercropped with Indian mustard had less than unity LER of 0.87.
Ascochyta Blight and Weed Density Affected by the Rolling Times and the Packing Force Levels of Land Roller in Chickpea (Cicer arietinum L.) Production
Authors: Gürsoy S , Özaslan C , Türk Z
Published: December 2019

A field experiment was conducted to examine the impacts of the rolling times [pre-emergence and post-emergence] and the packing force levels of land roller [0 kNm-1, 2.15 kNm-1, 2.70 kNm-1, 3.27 kNm-1, 3.84 kNm-1, 4.41 kNm-1] on the disease severity of Ascochyta blight (AB), total weed density, dry weed biomass weight, the density of dominant weed species and grain yield per plant in chickpea (Cicer arietinum L.) production. The effect of land rolling time on total weed density, dry weed biomass weight and grain weight per plant was not significant, but land rolling at post-emergence (61.34%) had significantly higher disease severity of AB than that at pre-emergence (51.87%). The packing force levels of land roller had a significant effect on the disease severity of AB, total weed density, dry weed biomass weight and grain yield per plant. The increased packing force of land roller increased the disease severity of AB. The dry weed biomass weight and total weed density was the highest at the 2.70 kNm-1 of the packing force while the 3.27 kNm-1 of the packing force resulted in the highest grain weight per plant among treatments.
Mídias, estratégias políticas e comunicação. Redefinições das características da esfera pública no contexto da midiatização
Authors: De Souza Paes Paula
Published: December 2019

Este artículo se interesa en las redefiniciones de la noción de esfera pública y su relación con la política desde una perspectiva informativa y comunicativa. Abordaremos estos cambios teniendo en cuenta, principalmente, el trabajo de dos investigadores que se han dedicado a comprender el funcionamiento de la esfera pública en los tiempos contemporáneos: Bernard Miège y Peter Dahlgren. La atención está centrará en las mutaciones que afectaron la esfera pública, causando su fragmentación y expansión. Dicha dinámica se explica por los cambios en las prácticas comunicativas en general, especialmente la comunicación política, y en las prácticas periodísticas y el fomento de la democracia. Estas prácticas serán tratadas como prismas para comprender la esfera pública, ya que ésta depende, entre otros factores, de interacciones e intercambios mediados.
Financeirização, midiatização e dataficação como sínteses sociais
Authors: Grohmann Rafael
Published: December 2019

El artículo teoriza acerca de las interrelaciones entre financiarización, mediatización y datificación, consideradas, según plantea Sohn-Rethel (2017), síntesis sociales. En ese marco, el trabajo se ocupa se pensar el papel de los procesos comunicacionales en la interacción entre la circulación de capital y la circulación de significados, y se sostiene que la comunicación, como organizadora de la financiarización, sedimenta los sentidos de la racionalidad neoliberal y el capitalismo de plataforma involucrados en la circulación de algoritmos y datos.
Ativação de dispositivos comunicacionais. Um estudo da noção de dispositivo em eleições recentes em Goiânia, Brasil
Authors: Signates Luiz , Faria Campos Paulo Alexandre
Published: December 2019

Este artículo procura discutir un dispositivo interinstitucional, declarando su amplitud como una construcción capaz de ayudar a analizar los episodios de comunicación al mismo que afirma una composición para un dispositivo que incluye, entre sus elementos, un activador de sema y un punto de partida para su demarcación. En cuanto al alcance del instrumento, el artículo presenta las ventajas de la noción de interacción del dispositivo comunicacional, en relación a la ideología y a la coherencia vigentes en los modelos tradicionales de análisis de la comunicación, anclados en la función de mediación. Cualitativa que analizó los efectos de los programas de televisión electorales en 2016 en la ciudad de Goiânia, Goiás, y con algunas inferencias sobre una elección presidencial de 2014, no en Brasil, o sobre un dispositivo de comunicación funcional identifica un elemento desencadenador, una estructura inicial, a partir de la cual es posible reconocer una producción simbólica en circulación, indicando un corte para una extensión del dispositivo en relación a los vectores involucrados.
Macri y la memoria traumática. La campaña presidencial de 2015*
Authors: Castelo Heymann Santiago
Published: December 2019

En este trabajo llevamos a cabo un análisis discursivo de las diferentes apariciones y versiones del relato del secuestro que el ex presidente argentino Mauricio Macri (2015-2019) sufrió en 1991. Tomamos para ello un corpus de enunciados producidos durante la campaña presidencial de 2015, en los cuales el entonces candidato relata su propia experiencia traumática. Pretendemos contribuir al estudio de la “memoria traumática” como una expresión del espacio biográfico de los candidatos y líderes políticos y, en el caso concreto de Macri, como una estrategia de construcción de personalidad y liderazgo durante la campaña. A través del estudio de este caso, buscamos responder: ¿qué es lo que lleva a un candidato o candidata a narrar un suceso traumático? Reflexionaremos sobre el papel que estos relatos ocuparon en las estrategias de personalización y humanización del candidato argentino. Específicamente, abordaremos cuatro dimensiones que, a nuestro parecer, caracterizan la presentación de sí del candidato: victimización, humanización, compasión y superación.

*Este artículo se enmarca en el proyecto de doctorado titulado: “El espacio biográfico en comunicación política. Un análisis de su papel en las estrategias electorales de Argentina 2015 y Ecuador 2017 y de sus efectos en millennials urbanos” (2017 - DI 059). Dicho proyecto se lleva adelante en la Universidad Pompeu Fabra, España.
The mediatized nation. Identity, agency and audience in nation branding campaigns
Authors: Bolin Göran
Published: December 2019

Nation branding es una práctica dinámica que se desenvuelve de manera rápida, es un subproceso de un proceso de mediatización más amplio, utilizada para promover o reajustar imágenes de un Estado-Nación para turistas o inversores. Especialmente, los Estadios-Naciones jóvenes, sienten la necesidad de crear nuevas imágenes de sí mismos a los ojos del mundo, pero, como esos Estados-Nación también tienen una historia de soberanía aún breve, precisan simultáneamente, construir una solidaridad
social y una comunidad interna a fin de formar una base necesaria para la construcción de una Nación. Este artículo parte de esa tensión y abordar tres temas: agencia, audiencia e identidad, que consideramos es necesario de una mayor teorización debido a que la práctica está intentando aún encontrar su forma. Estos temas son discutidos en relación a los esfuerzos de creación de marca del nuevo Estado de Ucrania, en Europa oriental, en la última década. Se concluye que hoy las campañas de Nation branding, son orquestadas también por agencias de relaciones públicas internas (a lo contrario del dominio anterior de las agencias británicas) que tienen en consideración el público interno de otras maneras, diferentes de las campañas de branding anterior, y que traen cuestiones de construcción de identidad mucho más complejas de las que fueron utilizadas anteriormente. El caso ucraniano ilustra, así, la mediatización de símbolos nacionales en la sociedad contemporánea.
Eliseo Verón. Midiatização da política: trajetórias
Authors: Fausto Neto Antonio , Weschenfelder Aline
Published: December 2019

El trabajo se detiene en la obra de Eliseo Verón y tiene el propósito de configurar algunos momentos claves de sus investigaciones, publicadas en diferentes idiomas, sobre el proceso de mediatización de la política. El recorte está organizado como una suerte de enunciación guía y permite observar un mapeo de conceptos e ideas desplegadas por Verón a lo largo de su extensa trayectoria académica e intelectual acerca de la articulación entre mediatización, enunciación política, televisión, estrategias discursivas, Internet y nuevos actores colectivos.
İBN TEYMİYYE'NİN İBN ARABÎ ELEŞTİRİSİ
Authors: KUBAT Mehmet
Published: December 2019

İslâm
düşünce tarihinde fikirleri, düşünceleri, yaşam tarzı ve duruşuyla Müslüman
halklar üzerinde büyük tesir eden âlimlerden biri Selefî düşünüşün VIII.
asırdaki temsilcisi İbn Teymiyye’dir. İbn Teymiyye, Selefî düşünüşün tabiî bir
sonucu olarak tarihsel süreçte oluşan birbirlerinden oldukça farklı
İslâm anlayışlarını Kitap ve Sünnet’in ışığında yeniden değerlendirmeye tâbi
tutmuş, bu yolla öze dönüşü hedeflemiştir. Aynı saikle Hıristiyanlığı
eleştiriye tabi tutan İbn Teymiyye, İslâm mezheplerinden Şia’ya reddiyeler
yazmış, felsefeci ve kelâmcılara
da eleştiriler yöneltmiştir. Ancak onun en sert eleştiriye tâbi tuttuğu kesim
sûfiler olmuştur. Nitekim kendinden yaklaşık bir asır önce yaşamış olan ve sufî
düşüncenin zirvesi kabul edilen Muhyiddîn İbn Arabî de onun sert eleştirilerinden
nasibini almıştır. İbn Teymiyye, başta vahdet-i vücûd olmak üzere onun hemen
bütün görüşlerini şiddetli bir eleştiriye tâbi tutmuştur. Bu makalede önce iki
zirve âlim İbn Teymiyye ve İbn Arabî’nin kısa hayat öyküsünden söz edilecek, daha
sonra başta vahdet-i vücûd olmak üzere İbn Arabî’nin görüşleri kısaca aktarılacak
ve ardından İbn Teymiyye’nin bu düşüncelere yönelttiği eleştiriler ele alınıp
incelenecek, en sonunda da nasslar ve İslâm âlimlerinin görüşleri doğrultusunda
bu iki büyük düşünürden hangisinin görüşlerinde isabet ettiği belirlenmeye
çalışılacaktır.
II. Meşrutiyet’ten Cumhuriyet’e Kur’an Tercümelerine Osmanlı Aydınlarının Yaklaşımı
Authors: KARACAN Osman , YAŞAR Bülent
Published: December 2019

Batı modernleşmesi
açısından oldukça önemli olan Martin Luther’in, İncil’i Almancaya tercüme etme girişiminin
bir örneği de Tanzimat’tan sonra Kur’an’ın Türkçeye çevrilmesi adımı ile Osmanlı
modernleşmesinde yaşanmıştır. Tanzimat’ın ilanından sonra gündeme gelen
Kur’an’ın Türkçeye çevrilmesi tartışmaları II. Meşrutiyet döneminde ve
Cumhuriyetin ilk yıllarında yoğunlaşarak devam ederken bu süre içerisinde çok
sayıda tercüme çalışması da yapılmıştır. Hatta 1925 yılında TBMM’nin de
gündemine gelen Kur’an’ın Türkçeye tercümesi meselesi, yapılan görüşmelerin
neticesinde Kur’an’ın sağlıklı bir Türkçe tercümesinin yapılması fikri Meclis
tarafından karar altına alınmış ve bunun için gerekli ödenek ayrılmıştır. Dönemin
siyasi ve fikri konjonktüründen bağımsız olarak ele alınamayacak olan Kur’an’ın
tercümesi meselesi, Osmanlı aydınları arasında yoğun tartışmalara konu
olmuştur. Kur’an tercümesi konusundaki tartışmalarda temelde iki yaklaşım
vardı.  Bazı aydınlar Kur’an’ın fesahat
ve belâgat açısından kesinlikle bir başka dile tercüme edilemeyeceğini
savunarak Kur’an çevirilerine karşı çıkarken bazı aydınlar ise Arapça bilmeyen
Müslümanların Kur’an’ı anlamaları için tercümenin zorunlu bir ihtiyaç olduğu
görüşünden yola çıkarak Kur’an’ın mutlaka tercüme edilmesi gerektiğini
savunmuşlardır. Bu iki yaklaşımın periferisinde gelişen tartışmalar Osmanlı matbuatında
geniş yer tutmuştur. Bu çalışmada Tanzimat’tan itibaren yoğun tartışmalara konu
olan Kur’an-ı Kerim’in Türkçeye tercümesi meselesine yönelik Osmanlı
aydınlarının bakışı ele alınmaktadır.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL CERITA MATEMATIKA BERDASARKAN LANGKAH PENYELESAIAN POLYA
Authors: Rofi'ah Nur , Ansori Hidayah , Mawaddah Siti
Published: December 2019

Soal cerita matematika seringkali dianggap sulit oleh para siswa, sehingga seringkali terdapat banyak kesalahan yang dibuat oleh siswa dalam menjawab soal cerita matematika. Tujuan dari penetian ini adalah menganalisis jenis kesalahan yang dibuat oleh siswa dalam menyelesaikan soal cerita matematika berdasarkan langkah penyelesaian Polya. Penelitian ini menggunakan metode penelitian deskriptif dengan pendekatan kuantitatif. Siswa kelas VII SMP Negeri Se-Kecamatan Banjarmasin Tengah merupakan Populasi dari penelitian ini. Pengambilan sampel dilakukan menggunakan teknik simple random sampling sehingga diambil sampel dari lima sekolah dengan jumlah 422 siswa. Teknik pengumpulan data memakai tes soal uraian serta dianalisis berdasarkan langkah penyelesaian Polya. Data dianalisis menggu­nakan statistik deskriptif. Hasil penelitian menunjukkan bahwa terdapat empat jenis kesalahan yang dilakukan siswa kelas VII SMP Negeri di Kecamatan Banjarmasin Tengah dalam menyelesaikan soal cerita materi Aritmatika Sosial berdasarkan langkah penyelesaian Polya yaitu kesalahan memahami masalah termasuk ke dalam kesalahan dengan kategori kecil. Sedangkan, kesalahan menyu­sun rencana, kesalahan menyelesaikan perencanaan, dan kesalahan memeriksa kembali termasuk ke dalam kesalahan dengan kategori cukup tinggi.Kata kunci: analisis kesalahan, soal cerita matematika,langkah penyelesaian Polya.Abstract: Mathematical word problems are often considered difficult by students, so there are many mistakes made by students in answering mathematical word problems. The research aim is to analyze the types of errors made by students in solving mathematical word problems based on Polya's completion steps. This research uses descriptive research method with quantitative approach. VII grade students of SMP Negeri in Central Banjarmasin District are the population of this study. Simple random sampling technique was used in the research so that five schools with a total 422 students had been choosen. Data collection techniques used test (essay questions) and it was analyzed based on Polya's completion steps. Data were analyzed using descriptive statistics. The results showed that there were four types of errors made by VII grade students of SMP Negeri in Central Banjarmasin District in solving mathematical word problems about Social Arithmetic based on Polya's completion steps, namely error in understanding problems included in errors with small categories. Meanwhile, error in planning, error in completing plans, and error in re-checking are included in the errors with a fairly high category. Keywords: error analysis, mathematical word problems, Polya's completion steps
ÉTICA SOCIAL CATÓLICA E SAÚDE PÚBLICA: EM BUSCA DE UMA BIOÉTICA LIBERTADORA
Authors: Martins Alexandre Andrade
Published: December 2019

Este artigo parte da perspectiva de que a opção pelos pobres oferece um imperativo ético para analisar questões bioéticas para além dos debates tradicio­nais sobre o uso de tecnologia médica e da relação profissional de saúde-paciente. O autor propõe uma bioética em chave libertadora, que integre o ensino social católico às questões do mundo da saúde e os desafios éticos para a promoção da justiça por meio de um sistema público que garanta o direito à assistência à saúde. O texto inicia examinando a opção pelos pobres como ela é apresentada pelo ensino social católico e como essa opção se relaciona com o mundo da saúde. Apresenta uma análise de dados e estudos que mostram a relação entre pobreza, enfermidade e morte precoce e a existência de um círculo vicioso entre pobreza, vulnerabilidade a enfermidades, falta de assistência médica e morte. Esta realidade dramática precisa ser destruída porque é uma ameaça à vida humana. Por fim, o autor sugere que uma bioética capaz de responder aos desafios deste círculo ainda precisa ser construída, e que a integração entre o ensino social católico e a bioética, tendo a opção pelos pobres como imperativo ético, oferece elementos para a construção de uma bioética libertadora.
Pengaruh Pembelajaran Fisika Berbasis STEM Terhadap Kemampuan Motorik Siswa
Authors: Muyassarah Afipah , Ratu Tursina , Erfan Muhammad
Published: December 2019

Abstract: STEM (Science, Technology, Education, and Mathematics) is learning that not only involves scientific and mathematical concepts (cognitive aspects) but also technically about how a concept is obtained (motoric). The aspect of motor ability is one of the aspects obtained by students in the learning process apart from the cognitive and affective aspects, but generally most studies put forward cognitive aspects (learning outcomes) so that motor skills are rarely exposed. Therefore this study aims to find out how much influence the STEM-based Physics Learning has on students' motor skills. This research is a quasi-experimental study with the design of One Groups Pretest-Posttest. Data was collected by student worksheet and Student Motor Skill Assessment Instrument Sheets and analysed by paired sample t-test. The results showed that the results of paired sample t test (t value = -64,761 far below t table) and the obtained N-Gain value was 0.55 (moderate gain) so it can be concluded that STEM-based physics learning is significantly capable of increasing students' motor ability.

Abstrak: Pembelajaran STEM (Science, Technology, Education, and Mathematics) merupakan pembelajaran yang tidak hanya melibatkan kosep-konsep sains dan matematika saja (aspek kognitif) tetapi juga secara teknis mengenai bagaimana suatu konsep itu diperoleh (motorik). Aspek kemampuan motorik merupakan salah satu aspek yang diperoleh siswa dalam proses pembelajaran selain daripada aspek kognitif dan afektif, namun umumnya kebanyakan penelitian lebih mengedepankan aspek kognitif (hasil belajar) sehingga kemampuan motorik jarang terekspose. Oleh karena itu penelitian ini bertuuan untuk mengetahui seberapa besar pengaruh Pembelajaran Fisika berbasis STEM terhadap kemampuan motorik siswa. Penelitian ini termasuk penelitian kuasi eksperimen dengan desain One Groups Pretest-Posttest. Data dikumpulkan dengan LKPD dan Lembar Instrumen Penilaian Kemampuan Motorik Siswa serta dianalisis dengan uji-t sampel berpasangan. Hasil penelitian menunjukkan bahwa hasil uji paired sample t test (nilai t = -64,761 jauh dibawah t tabel (-1.69092), dan nilai N-Gain yang diperoleh sebesar 0,55 (gain sedang) sehingga dapat ditarik kesimpulan bahwa pembelajaran fisika berbasis STEM secara signifikan mampu meningkatnya capaian kemampuan motorik siswa.
Perhitungan Perubahan Reaktivitas Pada Reaktor Serba Guna G.A. Siwabessy Akibat Pengoperasian Power Ramp Test Facility
Authors: Suparmi A , Setyaningsih Tuti Dwi , Suharyana Suharyana , Anwar Fuad , Riyatun Riyatun
Published: December 2019

Abstract: Power Ramp Test Facility (PRTF) is one of the irradiation facility contained in the Multipurpose Reactor GA Siwabessy. This facility is used to test the reactor fuel element pin-type Pressurized Water Reactor. As a result of the entry of foreign bodies cause changes reactor conditions, one of which is expressed with the amount of reactivity to assess the safety of the reactor due to the operation PRTF. PRTF operation simulation and calculation is done using software neutronics MCNP6. Test UO2 fuel enriched assumed at 5% with constant power reactor operating at 15 MW and test fuel pin placed on PRTF within 0, 20, 40, 60, 80, 100, 120, and 140 mm from the centre of the reactor core. Change of reactivity values required in order to secure the reactor, maximal value is 0,5%.  The calculation were obtained at each position is (;  ;  ; ;; ; ; ). Change of reactivity values smaller than the safe limit. Therefore, the study of reactivity changes PRTF operation to test fuel pin is secure.

Abstrak: Power Ramp Test Facility (PRTF) merupakan salah satu fasilitas iradiasi yang terdapat pada Reaktor Serba Guna G.A. Siwabessy. Fasilitas ini digunakan untuk menguji pin elemen bahan bakar reaktor tipe Pressurized Water Reactor. Akibat dari masuknya benda asing menyebabkan perubahan kondisi reaktor, salah satunya dinyatakan dengan besaran reaktivitas untuk mengkaji keselamatan reaktor akibat pengoperasian PRTF. Simulasi pengoperasian PRTF dan perhitungan netronik dilakukan menggunakan perangkat lunak MCNP6. Bahan bakar uji UO2 diasumsikan diperkaya sebesar 5% dengan daya operasi reaktor konstan sebesar 15 MW. Pin bahan bakar uji diletakkan pada PRTF berjarak 0, 20, 40, 60, 80, 100, 120, dan 140 mm dari arah pusat teras reaktor. Nilai perubahan reaktivitas yang dipersyaratkan agar reaktor aman adalah , sedangkan nilai perubahan reaktivitas dari penelitian pada masing-masing posisi dari pusat reactor adalah (;  ;  ; ;; ; ; ) . Nilai perubahan reaktivitas akibat masuknya pin bahan bakar di PRTF mempunyai nilai perubahan reaktivitas 1/10 kali lebih kecil daripada batas aman. Oleh karena itu, ditinjau dari kajian  nilai perubahan reaktivitas maka pengoperasian PRTF untuk uji pin bahan bakar adalah aman.
Pengaruh Diameter Leher Resonator Helmholtz Pada Alat Pemanen Energi Akustik (Acoustic Energy Harvester) Terhadap Daya Listrik Yang Dihasilkan
Authors: Abdillah Yuanita Fara , Setiawan Ikhsan , Utomo Agung Bambang S
Published: December 2019

Abstract: Acoustic energy (sound) that is wasted in environment has potential to be alternative energy to produce electrical energy. This paper presents an experimental study of the effect of Helmholtz resonator neck diameter on the output electric power of an acoustic energy harvester. The cavity of the resonators is a cube-shaped with size of 30 cm ´ 30 cm ´ 30 cm made of acrylic. The resonator neck is cylindrical and has 8 cm length with four diameter variations of 5,2 cm, 6,9 cm, 8,2 cm, and 10,4 cm. A 6-inches subwoofer loudspeaker is used as acoustic transducers that converts sound into electric current. The experiment is performed by giving sound with SPL of 90 dB in the frequency range of (20-150) Hz. The output rms voltages from the loudspeaker are measured at a 5.0 ohm load resistor. It is found that there are always two peaks in the frequency spectrum that provide maximum electric power, namely at 27 Hz and 55 Hz. These peak frequencies do not depend on the neck diameter. On the other hand, the larger the neck diameter, the higher the generated electrical power. The highest rms electric power produced are 3.03 mW and 2.25 mW at the first and second peaks, respectively.

Abstrak: Energi akustik (bunyi) yang terbuang di lingkungan memiliki potensi menjadi salah satu energi alternatif untuk menghasilkan energi listrik. Makalah ini memaparkan tentang studi eksperimental pengaruh diameter leher resonator Helmholtz pada alat pemanen energi akustik terhadap daya listrik yang dihasilkan. Rongga resonator Helmholtz berbentuk kubus berukuran 30 cm ´ 30 cm ´ 30 cm terbuat dari akrilik. Leher resonator berbentuk silinder sepanjang 8 cm dengan empat variasi diameter yaitu 5,2 cm, 6,9 cm, 8,2 cm, dan 10,4 cm. Loudspeaker jenis subwoofer dengan diameter nominal 6 inci dipasang disisi belakang rongga resonator digunakan sebagai transduser akustik yang mengubah bunyi menjadi arus listrik. Eksperimen dilakukan dengan memberikan gelombang bunyi dengan SPL (sound pressure level) 90 dB dalam rentang frekuensi (20 - 150) Hz dan mengukur tegangan listrik rms keluaran dari loudspeaker pada resistor beban 5,0 ohm. Diperoleh bahwa selalu terdapat dua puncak spektrum frekuensi dengan daya listrik maksimum, yaitu pada 27 Hz dan 55 Hz. Frekuensi-frekuensi puncak ini tidak bergantung pada diameter leher resonator. Di sisi lain, ditemukan bahwa diameter leher yang semakin besar menghasilkan daya listrik yang semakin besar. Daya listrik rms terbesar yang dihasilkan (pada diameter 10,4 cm) adalah 3,03 mW dan 2,25 mW masing-masing pada puncak pertama dan puncak kedua.
Survei Keterampilan Berpikir Kritis Mahasiswa pada Materi Usaha dan Energi
Authors: Kassiavera Sujiyani , Suparmi A. , Cari Cari , Sukarmin Sukarmin
Published: December 2019

Abstract: This study aims to determine the critical thinking skills possessed by students. The Subject of this research were 131 students of physics education program from Bengkulu University and Indraprasta University. Subjects consist of 4th semester (56 students) and 6th semester (75 students) who have received the Basic Physics course previously. Instrument of this research using test concept. Based on the results of a survey conducted that students' critical thinking skills are still very low on business work- energy. This survey research will be the main basis for researchers to conduct further research with the same research location.

Abstrak: Penelitian ini bertujuan untuk mengetahui keterampilan berpikir kritis yang dimiliki mahasiswa. Subjek penelitian ini adalah 131 mahasiswa yang terdiri dari semester 4 (56 siswa) dan semester 6 (75 siswa) yang telah menerima materi Fisika Dasar sebelumnya. Teknik pengumpulan data menggunakan metode tes. Berdasarkan hasil survei yang dilakukan bahwa keterampilan berpikir kritis mahasiswa masih sangat rendah pada materi usaha dan energi. Penelitian survei ini akan menjadi dasar utama bagi peneliti untuk melakukan penelitian lanjutan dengan lokasi penelitian yang sama.
Energy Consumption and Economic Growth Nexus in Bangladesh
Authors: Sarker Swati Anindita , Wang Shouyang , Adnan K M Mehedi
Published: December 2019

The empirical investigation that examines the dynamics including the interaction between consumption of energy and economic progress has long been assessed. However, the interaction of these two in developing countries in general and Bangladesh, in particular, is a less explored subject. Hence, with this notion, this study examined the causal relationship among economic growth and energy consumption in Bangladesh. For this purpose, the study used energy consumption, gross domestic product (GDP), labor force, and capital data from 1981 to 2017 from different sources and data is analyzed by augmented Dickey-Fuller (ADF) unit root test, Johansen co-integration test and Granger test of causality. Results determine that energy consumption and economic growth have long term bi-directional relationship. The econometric model is estimated using generalized least squares (GLS) model. It is concluded that, consumption of energy and economic growth positively correlated and economic development highly depend on energy consumption in Bangladesh.
Bioinformatics analysis of Transcriptome genes in osteoarthritis rats treated with pilose antler
Authors: Lin Zhi-Dong , Zhong Li-Lun , Lu He , Lu Yao-Ming , Niu Wei
Published: December 2019

Background Pilose antler (PA) is a common Chinese medicine used to treat patients with osteoarthritis (OA) while its treating mechanism is still unknown. The purpose of our study is to clarify this mechanism by studying the effect of pilose antler on transcriptome genes expression in rats with knee osteoarthritis.MethodsTen Sprague Dawley (SD) rats are randomly divided into two groups, the pilose antler group (PA group) and the osteoarthritis group (OA group). The classic Hulth method was performed on the right knee of all the rats to establish the osteoarthritis model. Six weeks after the surgery, the PA group was given pilose antler and the OA group was given saline. This intervention lasted 6 weeks. Two hours after the last administration, cartilage tissues of all the rats were taken from their right knees. The samples were collected and sent to BGI, the genomic organization, to carry on the RNA-Seq measurement. The comparison of differentially expressed genes (DEGs), enrichment analysis, genes classification, and miRNA-mRNA linked network were studied within Dr.Tom system.ResultsSeveral DEGs(3226 in comparison between OA and PA group) were identified (|log2FC|≥1,Q value < 0.001). Compared with the OA group, 711 up-regulated genes and 2615 down-regulated genes were found in the PA group. According to the enrichment analysis, the up-regulated genes mainly enriched in muscle contraction and the down-regulated-genes are involved in inflammatory response. The miRNA-mRNA regulatory network was performed and the key genes were identified.ConclusionsOur studies have found that PA may alleviate the progression of OA through strengthening the muscle and positively regulate the inflammatory response. We also found some key genes, like Tnni2, Mylpf, Myl1, Actn3, Ifitm6, and Retnlg . These genes may be the potential target of pilose antler in the treatment of OA.
M1 macrophage activation in severe Plasmodium falciparum malaria patients with pulmonary oedema
Authors: Klinkhamhom Aekkarin , Glaharn Supattra , Sris Charit , Ampawong Sumate , Krudsood Srivicha , Ward Stephen A. , Viriyavejakul Parnpen
Published: December 2019

BackgroundPulmonary oedema (PE) is a serious complication of severe P. falciparum malaria which can lead to acute lung injury in severe cases. Lung macrophages are activated during malaria infection due to a complex host-immune response. The molecular basis for macrophage polarisation is still unclear but understanding the predominant subtypes could lead to new therapeutic strategies where the diseases present with lung involvement. The present study was designed to study the polarisation of lung macrophages, as M1 or M2 macrophages, in the lungs of severe P. falciparum malaria patients with and without evidence of PE.Methods Lung tissue samples, taken from patients who died from severe P. falciparum malaria, were categorised into severe malaria with PE and without PE (non-PE). Expression of surface markers (CD68- all macrophages, CD40- M1 macrophage and CD163- M2 macrophage) on activated lung macrophages was used to quantify M1/M2 macrophage subtypes.Results Lung injury was demonstrated in malaria patients with PE. The expression of CD40 (M1 macrophage) was prominent in the group of severe P. falciparum malaria patients with PE ( p < 0.05), whereas there was no difference observed for CD163 (M2 macrophage) between PE and non-PE groups.Conclusions The study demonstrates M1 polarisation in lung tissues from severe P. falciparum malaria infections with PE. Understanding the nature of macrophage characterisation in malaria infection may provide new insights into therapeutic approaches that could be deployed to reduce lung damage in severe P. falciparum malaria.
Machine Learning Approaches to Predict Peak Demand Days of Cardiovascular Admissions Considering Environmental Exposure
Authors: Qiu Hang , Luo Lin , Su Ziqi , Zhou Li , Wang Liya , Chen Yucheng
Published: December 2019

Background Accumulating evidence has linked environmental exposures, such as ambient air pollution and meteorological factors to the development and severity of cardiovascular diseases (CVDs), resulting in increased healthcare demand. Effective prediction of situations of demand for healthcare services particularly those associated with peak events of CVDs can be useful in optimizing the allocation of medical resources. However, few studies have attempted to adopt machine learning approaches with excellent predictive abilities to forecast the healthcare demand for CVDs. This study aims to develop machine learning models to predict the peak demand days of CVDs admissions using the hospital admissions data, air quality data and meteorological data in Chengdu, China from 2015 to 2017.Methods Six machine learning algorithms, including logistic regression (LR), support vector machine (SVM), random forest (RF), extreme gradient boosting (XGBoost), light gradient boosting machine (LightGBM) and artificial neural network (ANN), were applied to build the predictive models. The area under a receiver operating characteristic curve (AUC), logarithmic loss function, accuracy, sensitivity, specificity and F1 score were used to evaluate the predictive performances among the six models.Results The LightGBM model exhibited the highest AUC (0.940, 95% CI: 0.900-0.980), which was significantly higher than that of LR (0.842, 95% CI: 0.783-0.901), SVM (0.834, 95% CI: 0.774-0.894) and ANN (0.890, 95% CI: 0.836-0.944), but did not differ significantly from that of RF (0.926, 95% CI: 0.879-0.974) and XGBoost (0.930, 95% CI: 0.878-0.982). In addition, the LightGBM has the optimal logarithmic loss function (0.218), accuracy (91.3%), specificity (94.1%) and F1 score (0.725). Feature importance identification based on LightGBM indicated that the contribution rate of meteorological conditions and air pollutants for the prediction was 32% and 43%, respectively.Conclusion This study suggests that ensemble learning models especially the LightGBM model can be used to effectively predict the peak events of CVDs, which provide decision making for medical resource management.
The Role of Text messaging Intervention in Inner Mongolia among Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Trial
Authors: Wang Xuemei , Liu Dan , Du Maolin , Hao Ruiqi , Zheng Huiqiu , Yan Chaoli
Published: December 2019

Background Short messages service (SMS) provides a practical medium for delivering content to address patients to adherence to self-management. The aim of study was to design some patient-centered health education messages, evaluate the feasibility of messages, and explore the effect of this model. Methods The messages were designed by a panel of experts, and SMS Quality Evaluation Questionnaire was used to evaluate their quality. Two-arm randomized controlled trial was conducted to evaluate the effect of this management model. Participants were randomly divided into an intervention group (IG) who received evaluated messages and a control group (CG) who received regular education. The primary outcomes were changes in plasma glucose and control rates, and secondary outcomes were improvements in diet control, physical activities, weight control, etc. Results A total of 42 messages covering five main domains: health awareness, diet control, physical activities, living habits and weight control were designed, and the average scores of the messages were 8.0 (SD 0.7), 8.5 (SD 0.6), 7.9 (SD 1.0), 8.0 (SD 0.7), and 8.4 (SD 0.9), respectively. In SMS intervention, 171 patients with a mean age of 55.1 years to participate, including 86 in the CG and 85 in the IG. At 12 months, compared with the control group (CG), the decrease of fasting plasma glucose (FPG) (1.5 vs. 0.4, P = 0.011) and control rate (49.4% vs. 33.3%, P = 0.034), the postprandial glucose (PPG) (5.8 vs. 4.2, P = 0.009) and control rate (57.8% vs. 33.7%, P = 0.002) were better in the intervention group (IG). In terms of self-management, improvements in weight control (49.3% vs. 28.2%, P =0.031), vegetables consumption (87.3% vs. 29.0%, P <0.001), fruits consumption (27.5% vs. 7.4%, P =0.022), and physical activities (84.7% vs. 70.0%, P =0.036) were better in the IG than in the CG. Conclusions The overall quality of the messages was high. It was effective and feasible to carry out an SMS intervention to improve the behavioral habits of patients with chronic diseases in remote and undeveloped areas.