bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGARUH MODEL PROBLEM BASED INSTRUCTION PADA KONSEP PENCEMARAN TERHADAP KEMAMPUAN PEMECAHAN MASALAH
Authors: Luzyawati Lesy 
Published: July 2018

ABSTRACTThe study aims to determine the effect of Problem Based Instruction learning model on the concept of pollution to the problem solving ability of high school students. This research is a kind of quantitative research. Population in this research is student of class X SMA Negeri 1 Lohbener. Cluster random sampling technique was taken by two classes and obtained by X-MIPA 4 students as experiment class by using Problem Based Instruction and X-MIPA 2 as control class by using discussion method. The instrument used is in the form of five essay questions in accordance with the problem-solving indicator that is restricted to the C3-C5 cognitive domain that has been tested for its validity and reliability. After a different treatment, each posttest is given. Based on the result of the research, the average value of experimental class is 72.25 and the control class average 58.95. Then by using t test, obtained tcount = 4.092> ttabel = 1.680. Based on hypothesis testing can be stated that Ho is rejected. So that the problem-based instruction model influences student's problem solving abilities. Keywords: pollution, problem based instruction, and problem solving ability. ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh penggunaan model pembelajaran Problem Based Instruction pada konsep pencemaran terhadap kemampuan pemecahan masalah siswa SMA. Bentuk penelitian eksperimen berdesain postest only control group design. Populasi dalam penelitian ini adalah siswa kelas X SMA Negeri 1 Lohbener. Teknik pengambilan sampel secara cluster random sampling diambil dua kelas dan didapatkan siswa kelas X–MIPA 4 sebagai kelas eksperimen dengan menggunakan model pembelajaran Problem Based Instruction. Instrumen yang digunakan adalah berupa lima soal essai sesuai dengan indikator pemecahan masalah yang dibatasi pada ranah kognitif C3-C5 yang telah diuji validitas dan reabilitasnya. Setelah dilakukan perlakuan yang berbeda, masing-masing diberikan posttes. Berdasarkan hasil penelitian, diperoleh nilai rata-rata kelas eksperimen 72,25 dan rata-rata kelas kontrol 58,95. Kemudian dengan menggunakan uji t, diperoleh thitung=4,092 > ttabel=1,680, maka H0diterima. Disimpulkan bahwa model pembelajaran Problem Based Instruction berpengaruh terhadap kemampuan pemecahan masalah siswa. Kata Kunci: pencemaran, problem based instruction, dan kemampuan pemecahan masalah.
Aplicación de Holt-Winters para pronósticos de inventarios
Authors: Mira-Segura Laura Leonor , Trejo-Martínez Alfredo , López-Cruz Daniel 
Published: July 2018

El artículo pretende difundir la aplicación de la técnica Holt-Winters a partir de pronósticos en una empresa de cosméticos en la región oriente de la Ciudad de México. Dicha empresa, actualmente cuenta con un catálogo de más de 36 mil artículos, lo que dificulta el control de inventarios con técnicas tradicionales. Particularmente, para la toma de decisiones se ha recurrido a datos históricos, cuestión que anteriormente no se realizaba y con la aplicación del principio de Pareto y la técnica ABC, se desarrolla la gestión de compras y control de inventarios.
Contemporary radiosurgery of cerebral cavernous malformations: Part 2. Treatment outcome for hemispheric lesions
Authors: Nagy Gábor , Stokes Stuart S. , Erőss Loránd G. , Bhattacharyya Debapriya , Yianni John , Rowe Jeremy G. , Kemeny Andras A. , Radatz Matthias W. R. 
Published: July 2018

OBJECTIVEThe role of radiosurgery (RS) in treating superficial cavernous malformations (CMs) is insufficiently studied in part because of the disappointing results of early experimental attempts as compared to the mostly safe and effective microsurgery. Nonetheless, because of lesion- or treatment-specific factors, a therapeutic alternative may be required. In this study, the authors aimed to assess the safety of RS in treating superficial CMs and to analyze its long-term effect on hemorrhage rates and epilepsy control.METHODSThe authors conducted a retrospective analysis of 96 patients with 109 CMs located in the cerebral or cerebellar hemispheres and treated with RS between 1995 and 2014. A median of 15 Gy (range 10–25 Gy) was given to the 50% prescription isodose level, lesion volume was 604 mm3 (4–8300 mm3), and the prescription isodose volume was 638.5 mm3 (4–9500 mm3). Outcomes were compared to those of 206 deep-seated lesions reported on in another study. Ninety-five patients had available follow-up, which was a median of 7 years (1–21 years). Median patient age was 42 years (0.5–77) at presentation and 45 (3–80) at treatment. Seventy-one CMs presented with symptomatic hemorrhage, and 52 caused seizures.RESULTSIn the nonhemorrhagic group (37 lesions), one bleed occurred during the follow-up period, for an annual bleed rate of 0.4% per lesion. The lifetime annual bleed rate of CMs having a single hemorrhage prior to treatment was 2.5%. The rebleed rate in the single-bleed group decreased from 1.8% within the first 2 years after RS to 0.7% thereafter. The pretreatment rebleed rate for lesions having multiple bleeds prior to RS was 14.15%, which fell to 3.85% for the first 2 years after RS and declined to 1.3% thereafter. Multivariate analysis showed younger age, deep lesion location, and multiple pretreatment hemorrhages as significant predictors of posttreatment hemorrhage.Pretreatment hemorrhages led to permanent deficits in 41.4% of the cases with a single bleed and in 46.1% of cases with multiple bleeds. Only mild (modified Rankin Scale score 1) and a low rate of permanent neurological deficits were caused either by posttreatment hemorrhages (4.3%) or by radiation (2%).The rate of improvement in epilepsy was 84.9% after RS in patients with at least one seizure prior to treatment, not depending on the presence of hemorrhage or the time interval between presentation and treatment. Favorable outcome occurred in 81% of patients whose seizures were not controlled with antiepileptic medication prior to RS.CONCLUSIONSRadiosurgery for superficial CMs is safe and appears to be effective, offering a real treatment alternative to surgery for selected patients. Given their relatively benign natural history, superficial CMs require further study to verify the long-term benefit of RS over the lesions’ natural history.
The posterior superior iliac spine and sacral laminar slope: key anatomical landmarks for freehand S2-alar-iliac screw placement
Authors: Lin James D. , Tan Lee A. , Wei Chao , Shillingford Jamal N. , Laratta Joseph L. , Lombardi Joseph M. , Kim Yongjung J. , Lehman Ronald A. , Lenke Lawrence G. 
Published: July 2018

OBJECTIVEThe S2-alar-iliac (S2AI) screw is an increasingly popular method for spinopelvic fixation. The technique of freehand S2AI screw placement has been recently described. The purpose of this study was to demonstrate, through a CT imaging study of patients with spinal deformity, that screw trajectories based on the posterior superior iliac spine (PSIS) and sacral laminar slope result in reliable freehand S2AI trajectories that traverse safely above the sciatic notch.METHODSFifty consecutive patients (age ≥ 18 years) who underwent primary spinal deformity surgery were included in the study. Simulated S2AI screw trajectories were analyzed with 3D visualization software. The cephalocaudal coordinate for the starting point was 15 mm cephalad to the PSIS. The mediolateral coordinate for the starting point was in line with the lateral border of the dorsal foramina. The cephalocaudal screw trajectory was perpendicular to the sacral laminar slope. Screw trajectories, lengths, and distance above the sciatic notch were measured.RESULTSThe mean sagittal screw angle (cephalocaudal angulation) was 44.0° ± 8.4° and the mean transverse angle (mediolateral angulation) was 37.3° ± 4.3°. The mean starting point was 5.9 ± 5.8 mm distal to the caudal border of the S1 foramen. The mean screw length was 99.9 ± 18.6 mm. Screw trajectories were on average 8.5 ± 4.3 mm above the sciatic notch. A total of 97 of 100 screws were placed above the sciatic notch. In patients with transitional lumbosacral anatomy, the starting point on the lumbarized/sacralized side was 3.4 mm higher than on the contralateral unaffected side.CONCLUSIONSThe PSIS and sacral laminar slope are two important anatomical landmarks for freehand S2AI screw placement.
Поэтика жанра кантаты и ее претворение в хоровом творчестве С. С. Прокофьева
Authors: Lysenko Nataliya 
Published: July 2018

Статья посвящена рассмотрению исторических и эволюционных путей становления жанра кантаты в западноевропейской и русской музыкально-исторической традиции, а также особенностям претворения ее поэтики в хоровом творчестве С. С. Прокофьева. Жанр кантаты, сопутствующий практически всем периодам деятельности композитора («Семеро их», «Александр Невский» и др.), отразил не только стилевую специфику его творчества, но и культурно-исторические и духовные искания его эпохи.Ключевые слова: кантата, кантата «на случай», хоровое творчество С. С. Прокофьева, мифопоэтика культуры соцреализма.
Репертуар як політика: зміни в музичному житті Львова після вересня 1939 року
Authors: Pochapska Mar’yana 
Published: July 2018

Пропонована стаття присвячена детальному розгляду та аналізу репертуару львівської філармонії та оперного театру (на прикладі публікацій в львівських радянських газетах «Вільна Україна», «Ленінська молодь» і «Czerwony sztandar»). Основна мета: виявити впливи, пов'язані зі зміною влади, як і в музичній репертуарній політиці, так і в художньому контексті в цілому. Ключові слова: музична критика, музична публіцистика, оперний репертуар, ідеологія, соцреалізм, В. А. Барвінський.
Проблема соборности как фактор авторского стиля православной литургической традиции
Authors: Osadcha Svitlana 
Published: July 2018

Статья посвящена рассмотрению проблемы соборности в контексте изучения явления авторского стиля православной литургической традиции. На основе знакомства с богословско-философскими трудами конца XIX — начала ХХ века феномен соборности предстает как ведущее понятие и ключевая универсалия православной культуры в целом и певческой культуры в частности.Ключевые слова: соборность, литургический стиль, православная певческая традиция.
Традиції німецької фортепіанної вищої школи у світовому виконавстві
Authors: Rusnak Yuliia 
Published: July 2018

Стаття присвячена розгляду формування німецького фортепіанного мистецтва та зародженню державної музичної освіти Німеччини у XIX столітті у зв’язку з діяльністю Лейпцігської та Веймарської шкіл, згрупованих навколо постатей Ф. Мендельсона-Бартольді та Ф. Ліста. Відзначаються особливості розповсюдження педагогічних традицій в контексті існування вищих музичних учбових закладів та поза їх межами з огляду на творчу діяльність учнів видатних музикантів свого часу. Ключові слова: вища фортепіанна школа, державна музична освіта, німецька фортепіанна традиція, педагогічна традиція, художній напрямок.
Серійні структури в композиціях В. Сильвестрова
Authors: Dovgalenko Nina Sergiivna 
Published: July 2018

Стаття присвячена дослідженню прийомів та принципів застосування серійної техніки у деяких творах В. Сильвестрова 1960-х років. Аналіз зроблений на матеріалі фортепіанних та камерних творів цього періоду. Своєрідність стилістики композитора проявилася в переосмислюванні прийомів серійної та додекафонної техніки і синтезі її з елементами інтонаційно-мотивної системи. Ключові слова: серійна техніка, В. Сильвестров, шістдесятництво, український авангард.
Хоровые полонезы О. Козловского в контексте традиций александровского ампира
Authors: Muravska Olha 
Published: July 2018

Статья посвящена рассмотрению поэтики хоровых полонезов О. Козловского, характеризующихся в русле специфики русской музыкально-исторической традиции рубежа XVIII – XIX столетий и стилевых качеств Александровского ампира.Ключевые слова: ампир, Александровский ампир, имперская придворная культура, полонез, хоровой полонез, творчество О. Козловского.
Вокальные миниатюры Клода Дебюсси 1890-х годов: новый вектор художественных исканий
Authors: Qing Li 
Published: July 2018

Камерно-вокальная музыка Дебюсси неизменно привлекает внимание музыковедов. В этом контексте в числе наиболее актуальных оказываются вопросы периодизации вокальных сочинений. Начало 90-х годов XIX века открывает новый период творчества Клода Дебюсси. Заканчивается «пора ученичества», изменяется жанровая панорама его музыки (на первый план выходят инструментальные сочинения, устанавливается интерес к оперному жанру), но именно вокальные сочинения этих лет позволяют глубже осознать новые векторы художественных исканий композитора. Этот ракурс рассмотрения вокального наследия К. Дебюсси и определил цель данной статьи: выявить изменения творческих принципов композитора в 90-е годы XIX века и уточнить критерии периодизации его камерно-вокальных сочинений.Ключевые слова: Клод Дебюсси, вокальная миниатюра, французская музыка 1890-х годов, Стефан Малларме
До питання виконавської інтерпретації фортепіанної музики М. Метнера
Authors: Shevchenko Tetiana 
Published: July 2018

У статті розглянуто особливості виконання фортепіанної музики Метнера на прикладі інтерпретації «Сонати-спогади» яскравими піаністами ХХ століття Е. Гілельсом і С. Ріхтером. Автором на основі виконавської партитури ремарок виявлені романтично-емоційний тип виконання Гілельса і незграбно-пластичний, стриманий варіант гри Ріхтера.Ключові слова: російська фортепіанна соната, фортепіанний стиль Метнера, Соната-спогад, виконавська партитура ремарок.
Фортепіанний цикл Ф. Ліста «Різдвяна ялинка»: нова концепція дитячої музики
Authors: Xiaole Zhu 
Published: July 2018

У статті виявляються смислові пласти фортепіанного циклу Ф. Ліста «Різдвяна ялинка» в аспектах «відкриття дитинства», музичної Різдвіяни, мовно-композиторських, композиційних та духовно-філософських засад, що дозволяє виявити низку особливих властивостей форми-змісту цикла, а також спонукає до аналізу музичного матеріалу з позицій амбівалентністі сакрального/театрально-ігрового. Останнє відтворює цілісність дитячого світосприйняття, яке вдалося зберегти умудреному митцю – Ф. Лісту – до кінця життя.Ключові слова: фортепіанний цикл для дітей, «відкриття дитинства», романтизм, Ф. Ліст, різдвяна тема в музиці.
Dopaminergic Effect on Non-Motor Symptoms in Late Stage Parkinson’s Disease
Authors: Rosqvist Kristina , Odin Per , Hagell Peter , Iwarsson Susanne , Nilsson Maria H. , Storch Alexander 
Published: July 2018

Background: Non-motor symptoms (NMS) are common in late stage Parkinson’s disease (PD), as the frequency and severity of most of these symptoms increase with advancing disease. Objective: To assess effect of dopaminergic therapy on NMS in late stage PD and to investigate relationships between dopaminergic effect on NMS and on motor function. Method: Thirty PD patients in Hoehn and Yahr (HY) stages IV and V in “on” were included. Dopaminergic effect on non-motor symptomatology was assessed by the modified version of the Non-Motor Symptoms Scale (NMSS) in the “off” and the “on” state during a standardized L-dopa test, in parallel also assessing motor function. Results: NMS were common and many of the symptoms occurred in >80% of the individuals. The highest NMSS scores were seen within the NMSS domains 3: mood/apathy and 7: urinary in both the “off” and the “on” state. There was a statistically significant ( p < 0.001) improvement in the modified NMSS total score (median) from 79 in “off” to 64 in “on”. There were statistically significant differences between the “off” and the “on” state for domains 2: sleep/fatigue, 3: mood/apathy, 5: attention/memory, 6: gastrointestinal and 7: urinary. The differences in the NMSS score between the “off” and the “on” state were in general larger for motor responders than for motor non-responders. In motor non-responders, differences of the NMSS score between the “off” and the “on” state were found for the total score, domain 3: mood/apathy and its item 11-flat moods. Conclusion: There is an effect of dopaminergic medication on NMS in late stage PD, to some extent also for those with a non-significant response on motor function during L-dopa test. It is therefore of importance to optimize dopaminergic therapy in order to give the most effective symptomatic treatment possible.
New Young Stars and Brown Dwarfs in the Upper Scorpius Association∗
Authors: Luhman K. L. , Herrmann K. A. , Mamajek E. E. , Esplin T. L. , Pecaut M. J. 
Published: July 2018

Abstract
To improve the census of the Upper Sco association (∼11 Myr, ∼145 pc), we have identified candidate members using parallaxes, proper motions, and color–magnitude diagrams from several wide-field imaging surveys and have obtained optical and infrared spectra of several hundred candidates to measure their spectral types and assess their membership. We also have performed spectroscopy on a smaller sample of previously known or suspected members to refine their spectral types and evidence of membership. We have classified 530 targets as members of Upper Sco, 377 of which lack previous spectroscopy. Our new compilation of all known members of the association contains 1631 objects. Although the census of Upper Sco has expanded significantly over the last decade, there remain hundreds of candidates that lack spectroscopy. The precise parallaxes and proper motions from the second data release of Gaia should extend down to substellar masses in Upper Sco, which will greatly facilitate the identification of the undiscovered members.
ASASSN-15nx: A Luminous Type II Supernova with a “Perfect” Linear Decline
Authors: Bose Subhash , Dong Subo , Kochanek C. S. , Pastorello Andrea , Katz Boaz , Bersier David , Andrews Jennifer E. , Prieto J. L. , Stanek K. Z. , Shappee B. J. , Smith Nathan , Kollmeier Juna , Benetti Stefano , Cappellaro E. , Chen Ping , Elias-Rosa N. , Milne Peter , Morales-Garoffolo Antonia , Tartaglia Leonardo , Tomasella L. , Bilinski Christopher , Brimacombe Joseph , Frank Stephan , Holoien T. W.-S. , Kilpatrick Charles D. , Kiyota Seiichiro , Madore Barry F. , Rich Jeffrey A. 
Published: July 2018

Abstract
We report a luminous Type II supernova, ASASSN-15nx, with a peak luminosity of

mag that is between those of typical core-collapse supernovae and super-luminous supernovae. The post-peak optical light curves show a long, linear decline with a steep slope of 2.5 mag (100 day)−1 (i.e., an exponential decline in flux) through the end of observations at phase

. In contrast, the light curves of hydrogen-rich supernovae (SNe II-P/L) always show breaks in their light curves at phase ∼100 day, before settling onto 56Co radioactive decay tails with a decline rate of about 1 mag (100 day)−1. The spectra of ASASSN-15nx do not exhibit the narrow emission-line features characteristic of Type IIn SNe, which can have a wide variety of light-curve shapes usually attributed to strong interactions with a dense circumstellar medium (CSM). ASASSN-15nx has a number of spectroscopic peculiarities, including a relatively weak and triangular-shaped Hα emission profile with no absorption component. The physical origin of these peculiarities is unclear, but the long and linear post-peak light curve without a break suggests a single dominant powering mechanism. Decay of a large amount of

(M
Ni = 1.6 ± 0.2

) can power the light curve of ASASSN-15nx, and the steep light-curve slope requires substantial γ-ray escape from the ejecta, which is possible given a low-mass hydrogen envelope for the progenitor. Another possibility is strong CSM interactions powering the light curve, but the CSM needs to be sculpted to produce the unique light-curve shape and avoid producing SN IIn-like narrow emission lines.
Spiral Arms in Disks: Planets or Gravitational Instability?
Authors: Dong 董 Ruobing 若冰 , Najita Joan R. , Brittain Sean 
Published: July 2018

Abstract
Spiral arm structures seen in scattered-light observations of protoplanetary disks can potentially serve as signposts of planetary companions. They can also lend unique insights into disk masses, which are critical in setting the mass budget for planet formation but are difficult to determine directly. A surprisingly high fraction of disks that have been well studied in scattered light have spiral arms of some kind (8/29), as do a high fraction (6/11) of well-studied Herbig intermediate-mass stars (i.e., Herbig stars >1.5 M
⊙). Here we explore the origin of spiral arms in Herbig systems by studying their occurrence rates, disk properties, and stellar accretion rates. We find that two-arm spirals are more common in disks surrounding Herbig intermediate-mass stars than are directly imaged giant planet companions to mature A and B stars. If two-arm spirals are produced by such giant planets, this discrepancy suggests that giant planets are much fainter than predicted by hot-start models. In addition, the high stellar accretion rates of Herbig stars, if sustained over a reasonable fraction of their lifetimes, suggest that disk masses are much larger than inferred from their submillimeter continuum emission. As a result, gravitational instability is a possible explanation for multiarm spirals. Future observations can lend insights into the issues raised here.
The Carnegie-Irvine Galaxy Survey. VII. Constraints on the Origin of S0 Galaxies from Their Photometric Structure
Authors: Gao 高 Hua 桦 , Ho Luis C. , Barth Aaron J. , Li Zhao-Yu 
Published: July 2018

Abstract
Using high-quality optical images from the Carnegie-Irvine Galaxy Survey, we perform multicomponent decompositions of S0 galaxies (S0s) to derive accurate structural parameters to constrain their physical origin. Many S0s do not host prominent bulges. S0s have a broad distribution of bulge-to-total ratios (B/T) and Sérsic indices (n), with average values of B/T = 0.34 ± 0.15 and n = 2.62 ± 1.02, qualitatively consistent with the notion that S0s define a parallel sequence with and may have evolved from spiral galaxies. This is further reinforced by the incidence of bars and lenses in S0s, which, when compared with the statistics in spirals, supports the idea that lenses are demised bars. However, despite their wide range of prominence, the bulges of S0s form a surprisingly uniform sequence on both the Kormendy and fundamental plane relations. There is no evidence for population dichotomy or other indications of differentiation into classical and pseudo bulges. Most of the S0s reside in the field and in groups; cluster environment is not a necessary condition for S0 production. The properties of S0 bulges show little correlation with environmental indicators, after the dependence of galaxy stellar mass on environment is taken into account. As the bulges of late-type spirals and S0s are intrinsically different, and environmental effects that may account for such evolution appear to be minimal, we conclude that late-type spirals are not plausible progenitors of S0s. The bulges of S0s likely formed at an early epoch, after which secular processes contributed little to their subsequent evolution.