bluuebunny/crossref_metadata_2025_split huggingface dataset:
Aktivitas Antioksidan Sediaan Lipstik Kombinasi Ekstrak Buah Naga Merah dan Umbi Bit
Authors: Rakhmayanti Regia Desty , Hastuti Rini Tri , Lukito Pradea Indah 
Published: September 2020

Background: The National Agency of Drug and Food Control of Republic Indonesia (BPOM) report in 2016 showed that 43 cosmetics contains hazardous ingredients such as synthetic red dye K3 and K10. The use of synthetic dyes can cause poisoning, cancer and accelerate aging. Some plants that contain natural dyes are red dragon fruit (Hylocereus polyrhizus)and beetroot (Beta vulgaris L.). Red dragon fruit contains betalain color pigment which can be used as natural coloring agent and has antioxidant activity. The red-purple pigment in beetroot is a derivative of betacyanin and betanin which has antioxidant activity. Methods: This study used red dragon fruit and beetroot which was formulated into lipstick formula and determine the antioxidant activity with DPPH method using spectrophotometer UV-Vis. Results: The organoleptic test of lipstick formula 1-5 showed maroon to pink color and control formula was white. The lipstick smells like chocolate. The homogenity test showed that all of the formula was homogeneous. The smear test showed that formula 1-5 was transparent maroon to pink and control formula was colorless. The pH value of all formula was 5. The melting point was F1 (63,7°C), F2 (64,3°C), F3 (64,2°C), F4 (64,5°C) and control (64°C). The breaking point of all formula was F1 (166,7 gram), F2 (170 gram), F3 (163,3 gram), F4 (166,7 gram), F5 (170 gram) and K (170 gram). The result of antioxidant activity test showed that IC50 of all formula was F1 (12,6 ppm), F2 (13,99 ppm), F3 (13,29 ppm), F4 (13,33 ppm) dan F5 (14,17 ppm). This means that the lipsticks has a very strong antioxidant activity. The SPPS test showed there are no different between all the formula with significant value 0,07-0,9>0,05. Conclusion: The lipstick that was made fulfilled the physical test requirements and has a very strong antioxidant activity with IC50 levels > 50 ppm.
İslam Hukuk Usulünde Müşterek Lafzın Manaya Delaletine Dair Tartışmalar
Authors: SAMAR Mahmut 
Published: September 2020

Kitap ve sünnet İslam hukukunun tarihi süreç içerisinde metin halini almış iki temel kaynağıdır. Bu iki kaynakta yer alan nasları anlamak ve bunun için doğru bir yöntem belirlemek İslam hukuk usulünün en önemli konularından biridir. Fıkıh usulünde lafızlar (elfâz) bahsi bu anlamda ihtiyaç duyulan kuralları içeren önemli bir bölümdür. Fıkhî anlamdaki ihtilafların çoğu nasları inşa eden lafızlara yüklenen manalara ve bu manalardan elde edilen hükümlere dayanır. Çünkü lafızlar (elfâz) bahsi, naslardan hüküm çıkarmada ihtiyaç duyulan kuralları ihtiva eder. Bu nedenledir ki fıkıh usulü alanında kaleme alınmış eserlerde lafızlara genişçe yer verildiği görülür. Lafızlar, farklı açılardan taksime tabi tutularak incelenir. Bu çerçevede dört kategoride yirmi dört lafız üzerinde titizlikle durulmaktadır. Çünkü lafızların tasnifi, birbiriyle ilişkisi, hiyerarşisi bilinmeden nasların doğru bir şekilde anlaşılması oldukça güçtür. Söz konusu taksime göre ilk sırada “vaz‘ olunduğu mana bakımından lafızlar” yer alır. Kapsadığı mana bakımından veya şümul bakımından lafızlar olarak da bilinen bu kate-goride dört lafız türü bulunur. Bunlar; âm, hâs, müşterek ve müevvel lafızlardır. Bun-lardan hâss lafız ise emir, nehiy, mutlak ve mukayyed kısımlarına ayırılır. İkinci sırada kullanıldığı mana bakımından lafızlar incelenir. Bu grupta hakikat, mecaz, sarih ve kinaye lafızları yer alır. Üçüncü olarak manaya delaletinin açık veya kapalı olması bakımından lafızlar ele alınır. Bunlar; dördü açık, dördü de kapalı olmak üzere sekiz lafızdan oluşur. Açık lafızlar; zahir, nass, müfesser ve muhkem. Kapalı lafızlar; hafî, müşkil, mücmel ve müteşabih. Son sırada manaya delaletinin şekli bakımından lafızlar üzerinde durulur. Bu lafızlar da ibarenin delaleti, işaretin delaleti, nassın delaleti ve iktizanın delaleti olmak üzere dört kısımdır. Bu taksim Hanefî/fukahâ metodunu be-nimseyen usûlcülere aittir. Mütekellimin/Şâfiî usûlcüleri de bu lafızları incelemişlerdir. Ancak iki yöntem arasında taksimde, sıralamada vs. bazı farklar söz konusudur.
Virtual education in the Colombian context: teaching practices in public and private education
Authors: Acevedo-Rincón Jenny Patricia , Flórez-Pabón Campo Elías 
Published: September 2020

As a result of the global pandemic, Colombian education is facing great challenges in the virtual world. Currently, social, economic and cultural gaps are widening, especially between public and private universities in Colombia. It is therefore necessary to investigate teaching practices in the virtual world under different social conditions. This article aims to describe and analyze experiences, which constitute a baseline for the projection of didactic and pedagogical strategies for the teaching of disciplinary knowledge in the human and exact sciences. This research is of a qualitative nature and is developed under a descriptive perspective of experiences with interdisciplinary contributions from the human and exact sciences. Among the experiences, the gamification and reasonable adjustments needed to universalize learning in the classroom stand out.
Keywords: Virtuality. Methodological innovation. Colombian university. Public university. Private university.
Astraea: Predicting Long Rotation Periods with 27 Day Light Curves
Authors: Lu Yuxi(Lucy) , Angus Ruth , Agüeros Marcel A. , Blancato Kirsten , Ness Melissa , Rowland Danielle , Curtis Jason L. , Grunblatt Sam 
Published: September 2020

Abstract
The rotation periods of planet-hosting stars can be used for modeling and mitigating the impact of magnetic activity in radial velocity measurements and can help constrain the high-energy flux environment and space weather of planetary systems. Millions of stars and thousands of planet hosts are observed with the Transiting Exoplanet Survey Satellite (TESS). However, most will only be observed for 27 contiguous days in a year, making it difficult to measure rotation periods with traditional methods. This is especially problematic for field M dwarfs, which are ideal candidates for exoplanet searches, but which tend to have periods in excess of the 27 day observing baseline. We present a new tool, Astraea, for predicting long rotation periods from short-duration light curves combined with stellar parameters from Gaia DR2. Using Astraea, we can predict the rotation periods from Kepler 4 yr light curves with 13% uncertainty overall (and a 9% uncertainty for periods >30 days). By training on 27 day Kepler light-curve segments, Astraea can predict rotation periods up to 150 days with 9% uncertainty (5% for periods >30 days). After training this tool on these 27 day Kepler light-curve segments, we applied Astraea to real TESS data. For the 195 stars that were observed by both Kepler and TESS, we were able to predict the rotation periods with 55% uncertainty despite the wild differences in systematics.
BVRCIC Observations and Analysis of the UV LEO-type Binary, the Pre-WUMa, V1023 Persei
Authors: Samec Ronald , Caton Daniel , Faulkner Danny R. , Morgan Shannon 
Published: September 2020

Abstract
V1023 Per is a polar spotted, but well-detached dwarf binary, very likely a Pre-WUMa eclipsing binary. It was observed on 11 nights in 2015 October, November, and December at Dark Sky Observatory in North Carolina with the 0.81 m reflector of Appalachian State University. The period behavior is complex and may be increasing with a cubic or quadratic ephemeris. Its odd light curves are of high amplitude but have no totality and reach maximum light just before and following the secondary eclipse, indicating that it has polar spots similar to UV Leo. The 28 yr orbital period study calls the attention of observers to further monitor this binary to understand the complex nature of the period evolution. Its presently fixed polar spot does indicate that it must have a strong magnetic field and that it is synchronously rotating. The BVR
c
I
c simultaneous 2016 Wilson–Devinney program (W-D) solution gives fillouts of 68% and 75% for the primary and secondary components, respectively. The polar position of the spot, its radius (24°), and T-fact (0.75) indicate that a strong magnetic field is present. The small ΔT in the components (∼289 K) show that the stars are similar in spectral type despite them being well detached. The inclination is high, ∼85.°19 ± 0.°04, but there is not a total eclipse due to the high mass ratio (∼0.739 ± 0.001). Due to the low galactic position (longitude = 150.°390, latitude = −1.°023), its reddening is addressed. The primary components temperature is estimated to be 5250 ± 250 K.
The Ubiquity of AGN Winds in Seyfert 1 Galaxies at Low Redshift
Authors: Torres-Papaqui Juan Pablo , Coziol Roger , Romero-Cruz Fernando J. , Robleto-Orús Aitor C. , Escobar-Vásquez Gabriela , Morales-Vargas Abdías , Trejo-Alonso J. J. , Chow-Martínez Marcel , Cutiva-Alvarez Karla A. 
Published: September 2020

Abstract
The optical spectra of 3896 Seyfert 1 (Sy1) galaxies detected with WISE at z < 0.4 were analyzed for evidence of outflows. In 37% of the Sy1s in our sample, the outflows appear as broad, blue-shifted, spectrally resolved components of the [O iii]λ5007 Å emission line, with a mean maximum velocity V
max ∼ 1014 km s−1 that is consistent with AGN winds. For each Sy1, we deduced the black hole (BH) mass, bolometric luminosity, Eddington ratio, and power-law index of the continuum, which we compared with the star formation rate (SFR) and host morphology. Having separated our sample in two spectroscopic subgroups—Sy1s with only broad Balmer lines (Sy1B) and those with both narrow and broad (Sy1N) lines—and distinguishing those that show as outflow (Sy1Bw and Sy1Nw), we report the following differences: (1) the BH mass is systematically higher and the power-law steeper in the Sy1B–Sy1Bw than in the Sy1N–Sy1Nw; (2) V
max is higher in the Sy1Bw than in the Sy1Nw, correlated in both groups with the BH mass and bolometric luminosity; (3) the Eddington ratio and SFR are higher in the Sy1 with outflows; and (4) the specific star formation rates (sSFRs) of the Sy1s are normal for their morphology and mass, typical of early-type spiral galaxies in the green valley, far from the quenched regime. From these results, we conclude that AGN winds in Sy1s are triggered by higher accretion rates and probably radiatively launched, and there is no clear evidence of an effect on the star formation.
Submerged Sources of Transient Acoustic Emission from Solar Flares
Authors: Lindsey Charles , Buitrago-Casas J. C. , Martínez Oliveros Juan Carlos , Braun Douglas , Martínez Angel D. , Ortega Valeria Quintero , Calvo-Mozo Benjamín , Donea Alina-Catalina 
Published: September 2020

Abstract
We report the discovery of ultra-impulsive acoustic emission from a solar flare, emission with a seismic signature that indicates submersion of its source approximately a Mm beneath the photosphere of the active region that hosted the flare. Just over two decades ago V. V. Zharkova and A. G. Kosovichev discovered the first acoustic transient released into the Sun’s interior by a solar flare. These acoustic waves, refracted back upward to the solar surface after their release, make conspicuous Doppler ripples spreading outward from the flaring region that tell us a lot about their sources. The mechanism by which these transients are driven has stubbornly eluded our understanding. Some of the source regions, for example, are devoid of secondary Doppler, magnetic, or thermal disturbances in the outer atmosphere of the source regions that would signify the driving agent of an intense seismic transient in the outer atmosphere. In this study, we have applied helioseismic holography, a diagnostic based upon standard wave optics, to reconstruct a 3D image of the sources of acoustic waves emanating from the M9.3-class flare of 2011 July 30. These images contain a source component that is submerged a full Mm beneath the active-region photosphere. The signature of acoustic sources this deep in the solar interior opens new considerations into the physics that must be involved in transient acoustic emission from flares—and possibly of flare physics at large. We develop analogies to seismicity remotely triggered by tremors from distant earthquakes, and consider prospects of new insight into the architecture of magnetic flux beneath flaring active regions.
All Known SN Ia Models Fail to Reproduce the Observed t0–MN I56 Correlation
Authors: Sharon Amir , Kushnir Doron 
Published: September 2020

Abstract
SNe Ia are likely the thermonuclear explosions of carbon–oxygen white-dwarf stars, but their progenitor systems remain elusive. A few theoretical scenarios for the progenitor systems have been suggested, which have been shown to agree with some observational properties of SNe Ia. However, several computational challenges prohibit a robust comparison to the observations. We focus on the observed

t

0

–

M

N
I
56

relation, where t
0 (the γ-rays’ escape time from the ejecta) is positively correlated with

M

N
I
56

(the synthesized 56Ni mass). Comparing to the

t

0

–

M

N
I
56

relation bypasses the need for radiation transfer calculations, as the value of t
0 can be directly inferred from the ejecta. We show that all known SNe Ia models fail to reproduce the observed

t

0

–

M

N
I
56

correlation.
Effects of Surgical Timing on Surgical Success and Long-term Motor and Sensory Outcomes of Infantile Esotropia
Authors: Muz Omer Ersin , Sanac Ali Sefik 
Published: September 2020

Purpose:
To investigate the effect of surgical timing on long-term motor and sensory outcomes in patients with infantile esotropia.

Methods:
The medical records of patients who underwent strabismus surgery for infantile esotropia were reviewed retrospectively. The patients were divided into three groups according to age at the time of surgery: early group (6 to 11 months), late group (12 to 17 months), and very late group (18 to 27 months). The main outcome measures were final alignment, surgical success rate (the angle of deviation at final follow-up of ≤ 10 prism diopters [PD] of esotropia, no exotropia and no need for reoperation), stereoacuity, visual acuity, and the number of reoperations required during the follow-up.

Results:

A total of 79 patients (44 female, 35 male) met the inclusion criteria. The surgical success rate was 25.9%, 23.1%, and 53.8% in the three groups, respectively (
P
= .035). After a mean follow-up of 96 months, the average number of operations per child was 1.7 ± 0.9, 1.6 ± 0.6, and 1.4 ± 0.6 in the three groups, respectively (
P
= .020). The measurable stereopsis rate was higher in the early group (37% vs 3.8% and 3.8%, respectively) (
P
= .001). The amblyopia rate was similar between groups.

Conclusions:
The results show that performing surgery later in life in patients with infantile esotropia increases the motor success rate of surgery. In addition, orthophoria is achieved with fewer surgical operations. However, earlier surgery may improve stereopsis.

[
J Pediatr Ophthalmol Strabismus
. 2020;57(5):319–325.]
Non‐Clairvoyant Dynamic Mechanism Design
Authors: Mirrokni Vahab , Paes Leme Renato , Tang Pingzhong , Zuo Song 
Published: September 2020

We introduce a new family of dynamic mechanisms that restricts sellers from using future distributional knowledge. Since the allocation and pricing of each auction period do not depend on the type distributions of future periods, we call this family of dynamic mechanisms non‐clairvoyant.We develop a framework (bank account mechanisms) for characterizing, designing, and proving lower bounds for dynamic mechanisms (clairvoyant or non‐clairvoyant). We use the same methods to compare the revenue extraction power of clairvoyant and non‐clairvoyant dynamic mechanisms.
AN OPTIMAL C&D WASTE LOGISTICS NETWORK DESIGN FROM CONTRACTORS’ PERSPECTIVE
Authors: Lin Zhuangqin , Xie Qiu , Feng Yingbin , Zhang Peng , Yang Yu 
Published: September 2020

ABSTRACT
The construction industry is one of the major producers of municipal solid waste. Although there are many studies in municipal solid waste management, the research on the recovery of recyclable building material from construction sites remains limited. This paper addresses the optimal design issue of the construction and demolition (C&D) waste logistics network based on the features of the construction industry from the contractors’ perspective. The purpose of this paper is to provide an optimal C&D waste recycling network decision (RND) model considering the change of construction sites location over time. A multi-period and multi-objective mixed-integer linear programming model was developed to minimize the cost of C&D waste disposal for contractors, and to minimize the carbon emissions from C&D waste transportation. An application study was conducted to assess the performance of the RND model. Through some sensitivity analysis experiments based on an immune genetic algorithm, the influences of environmental policies and carbon tax policy on improving the recycling rate of C&D waste and reduce the carbon emission were explored. The findings of this research suggest that: (1) a RND model with the feature of the construction industry developed in this paper can effectively optimize the C&D waste logistics network; (2) government policies and laws are valid political instruments to improve the recycling rate of C&D waste; (3) the carbon-tax analyses demonstrate that a carbon tax policy can effectively reduce carbon emissions.
SUSTAINABILITY ASSESSMENT OF REINFORCED CONCRETE BEAM MIXES CONTAINING RECYCLED AGGREGATES AND INDUSTRIAL BY-PRODUCTS
Authors: Ahmed Shaikh Faiz Uddin , Hosan Anwar , Biswas Wahidul K. 
Published: September 2020

ABSTRACTA vast amount of construction and demolition (C&D) wastes are generated in Western Australia (WA) of which a major portion goes to landfills. The diversion of C&D waste from landfills would be the single most significant opportunity for WA to improve its recovery performance. C&D waste materials have already been investigated for their appropriateness and use in pavement and concrete. This work is the continuation of the authors’ previous work involving further experimental tests to prove the structural suitability of a building’s structural member (i.e., beam) made of recycled aggregates and industrial by-products. The concrete mixes considered in this study are 100NA+100 OPC (Control), 100RA+100OPC, 50RA+50NA+90OPC+10SF and 50RA+50NA+60OPC+30FA+10SF. The Reinforced Concrete (RC) beam made of 50RA+50NA+60OPC+30FA+10SF concrete mix was found to be the only eco-efficient option. This option has reduced the level of environmental impacts in a cost-competitive manner. The use of this eco-efficient option could also provide new employment opportunities and significant improvements in terms of land and energy resources conservation and bio-diversity enhancement.
Some Questions on the Beidi Huns
Authors: Obrusanszky Borbala 
Published: September 2020

Because of a fierce battle among crown princes of the Huns, the great Hunnic Empire was divided into two parts in 53 BC, when two brother, Huhanye [呼韓邪] and Zhizhi [郅支] fought for the throne of the Huns. The southern part led by Huhanye was submitted to the Han-dynasty. The northern part remained independent for a while, while the southern part, under the guidance of Huhanye Shanyu, concluded an agreement with the Han dynasty. The Huns received a wide ranging autonomy inside the Chinese Empire. A new situation emerged when the Han Empire weakened, from the second half of the 2nd century onward, and, instead of the elected emperors, eunuchs, and later on several warlords, who served the Han dynasty, acquired the main power, took control over certain territories of the former Han dynasty, and gradually created independent kingdoms. The Southern Huns were not able to achieve their independence from the Chinese Empire, because the great warlord Cao Cao [曹操] occupied a big part of the Empire, which contained the territory of the Huns. Right that period [3rd century CE], one significant portion of the Huns – the Beidi Huns – lived in the eastern part of Yellow River, today Shanxi province. The Jin shu chronicle [an official Chinese historical text covering the history of the Jin dynasty from 265 to 420] includes a summary account of their life and short history. I present some important details of that account.
Niveles de comprensión lectora en la educación superior
Authors: Ruiz Xicará Mario Gonzalo 
Published: September 2020

El presente artículo tiene como finalidad comprobar los niveles de comprensión lectora de los estudiantes en el proceso de enseñanza-aprendizaje del profesorado de educación física que tiene como sede la Escuela Oficial Urbana Mixta Tipo Federación ubicada en el municipio y departamento de Sololá con una muestra de 46 estudiantes. El proceso de la comprensión lectora es un instrumento eficaz de aprendizaje, posibilita una mejor interacción entre el lector y el texto, con diferentes métodos, estrategias y para realizar la interacción de los diferentes niveles de comprensión “saber qué” procedimentales “saber hacer” y actitudinales “saber ser”. En las aulas universitarias los estudiantes manifiestan dificultades al leer y comprender un texto, solo leen por leer, no entienden lo que leen, no disfrutan la lectura y no aplican estrategias para una lectura provechosa que faciliten los procesos de los aprendizajes de manera satisfactoria y estructurada.
KAJIAN DAMPAK KAWASAN MANDIRI PANGAN DI PULAU TERLUAR PROVINSI ACEH
Authors: Marsudi Helmi, Edy 
Published: September 2020

Ketersediaan pangan secara makro tidak menjamin tersedianya pangan ditingkat mikro (rumah tangga penduduk). Produksi pertanian di lokasi tertentu pada musim panen, mengakibatkan terjadinya konsentrasi ketersediaan pangan di daerah produksi selama musim panen. Metode analisis data yang digunakan dalam kajian ini terdiri dari beberapa alat analisis yaitu : analisis deskriptif, analisis kelembagaan, analisis Comparative Performance Index (CPI) dan LFA (Logical Framework Analysis). Identifikasi dampak program kawasan mapan yang menggunakan 6 instrumen dasar evaluasi yaitu instruktur, manajemen kelompok, permodalan, sarana prasarana, tenaga kerja dan teknologi serta penilaian terhadap dampak program menunjukkan Desa Suka Makmur berada pada peringkat pertama yang memiliki dampak terbesar dari Program Kawasan Mandiri Pangan terhadap masyarakatnya. Setelah itu disusul Desa Pulau Bengkalak berada pada peringkat kedua dan Desa Ujung Tinggi berada pada peringkat ketiga yang memiliki dampak program terhadap masyarakatnya. Kata Kunci : Kawasan Mandiri
PENGARUH APLIKASI POC TERHADAP PERTUMBUHAN DAN PRODUKSI RUMPUT GAJAH PADA PEMOTONGAN PERTAMA
Authors: Khalidin Khalidin, 
Published: September 2020

Penelitian ini dilakukan untuk mengetahui pertumbuhan dan produksi rumput gajah akibat aplikasi POC. Metode yang digunakan adalah Rancangan Acak Kelompok (RAK) yang terdiri dari empat perlakuan dengan enam ulangan. Masing-masing perlakuan adalah P0 (0 ml POC/ltr air sebagai kontrol), P1 (3 ml POC/ltr air), P2 (5 ml POC/ltr air) dan P3 (7 ml POC/ltr air). Parameter yang diamati yaitu tinggi tanaman, jumlah anakan , lingkar batang dan produksi. Hasil penelitian menunjukkan bahwa tinggi, lingkar batang dan produksi rumput gajah sangat nyata dipengaruhi oleh dosis POC yang diaplikasikan yaitu hasil yang tertinggi terdapat pada perlakuan dengan dosis POC 7 ml/liter air. Parameter jumlah anakan rumput gajah berpengaruh nyata akibat dosis POC yang diaplikasikan dimana jumlah anakan terbanyak terdapat pada perlakuan dengan dosis 5 ml/liter air.Kata kunci: POC, rumput gajah, pertumbuhan dan produksi.