bluuebunny/crossref_metadata_2025_split huggingface dataset:
Vimentin is required for normal accumulation of body fat
Authors: Wilhelmsson Ulrika , Stillemark-Billton Pia , Borén Jan , Pekny Milos 
Published: April 2019

Abstract
Intermediate filaments (nanofilaments) have many functions, especially in response to cellular stress. Mice lacking vimentin (Vim
−/−) display phenotypes reflecting reduced levels of cell activation and ability to counteract stress, for example, decreased reactivity of astrocytes after neurotrauma, decreased migration of astrocytes and fibroblasts, attenuated inflammation and fibrosis in lung injury, delayed wound healing, impaired vascular adaptation to nephrectomy, impaired transendothelial migration of lymphocytes and attenuated atherosclerosis. To address the role of vimentin in fat accumulation, we assessed the body weight and fat by dual-energy X-ray absorptiometry (DEXA) in Vim
−/− and matched wildtype (WT) mice. While the weight of 1.5-month-old Vim
−/− and WT mice was comparable, Vim
−/− mice showed decreased body weight at 3.5, 5.5 and 8.5 months (males by 19–22%, females by 18–29%). At 8.5 months, Vim
−/− males and females had less body fat compared to WT mice (a decrease by 24%, p < 0.05, and 33%, p < 0.0001, respectively). The body mass index in 8.5 months old Vim
−/− mice was lower in males (6.8 vs. 7.8, p < 0.005) and females (6.0 vs. 7.7, p < 0.0001) despite the slightly lower body length of Vim
−/− mice. Increased mortality was observed in adult Vim
−/− males. We conclude that vimentin is required for the normal accumulation of body fat.
Prototypical influence in second language acquisition: What now for the Aspect Hypothesis
Authors: McManus Kevin 
Published: April 2019

AbstractThis paper presents empirical evidence on the development of aspect by English- and German-speaking university learners of French L2 collected from a spoken narrative task and a sentence interpretation task. Contrary to the Aspect Hypothesis's predictions, this study's results suggest that increased use of prototypical pairings goes in hand with increased L2 proficiency. Following a small but growing number of studies, this study questions the route of L2 development proposed by the Aspect Hypothesis.
Influence of learners’ prior knowledge, L2 proficiency and pre-task planning on L2 lexical complexity
Authors: Bui Gavin 
Published: April 2019

AbstractAlthough differentiating between fluency, accuracy and complexity, while assessing L2 task performance, is becoming a standard practice, lexical complexity as a distinctive area has received less attention in the task-based language teaching (TBLT) literature. This study re-examines previous frameworks of lexical complexity and investigates three lexical dimensions,lexical diversity, lexical sophisticationandlexical density, using a structured 2 × 2 × 2 split-plot experimental design. The participants were divided into a non-planning group and a planning group and each group was further dichotomised into two proficiency levels. Each participant was assigned one familiar and one unfamiliar oral narrative task. The results show that one’s prior knowledge about a subject is associated with higher lexical diversity and sophistication, while pre-task planning promotes lexical density. The effects of proficiency seem to be largely overridden by the effects of prior knowledge and pre-task planning and show little impact on overall lexical performance. Interestingly, lexical diversity and lexical sophistication are independent of each other, and lexical density is moderately correlated with both lexical diversity and lexical sophistication. The results are discussed with reference to the Levelt model of speech production with some pedagogical implications on content-based language instruction. The exploration of the relationships between the lexical measures reveals a need for deeper and subtler characterisation of L2 lexical complexity.
Inverse Sturm–Liouville problems for non-Borg conditions
Authors: Korotyaev Evgeny L. 
Published: April 2019

Abstract
We consider Sturm–Liouville problems on the finite interval with non-Borg conditions.
Using eigenvalues of four Sturm–Liouville problems, we construct the spectral data and show that the mapping from potential to spectral data is a bijection.
Moreover, we obtain estimates of spectral data in terms of potentials.
Two-sided altruism and time inconsistency
Authors: Aoki Takaaki , Nishimura Kazuo , Yano Makoto 
Published: April 2019

AbstractIn this study, we examine dynamic allocation of resources and consumption over an infinite time horizon in an overlapping-generations model with two-sided altruism. Each generation cares not only about its own consumption and the utility of its successor, but also about the utility of its parental generation. The consumption decisions of different generations could display time-inconsistency in a model of two-sided altruism. Consequently, the outcome solutions could differ depending on whether members of the current generation are naïve and falsely believe that the future generation will comply with their, or are sophisticated and know exactly how the future generation will choose to behave. We assume that the young generation is naïve and behaves as a central planner in allocating capital resources. The capital stocks inherited by each generation from the parental generation are actually realized and used in the joint production of capital stocks and consumption goods. We refer to a sequence of such capital stocks as a two-sided altruistic path. This study examines a more general production function than earlier models of two-sided altruism, and our results prove that any two-sided altruistic path will eventually converge to the two-sided altruistic stationary path.
The Determinants of Corporate Dividend Policy in Poland
Authors: Rój Justyna 
Published: April 2019

[full article and abstract in English]
The purpose of this research is to examine the factors that determine the dividend policy of non-financial firms listed on the Warsaw Stock Exchange (WSE) in Poland and that of the annually paid dividends. Up to now, many empirical studies related to dividend policy were carried out, showing the differentiation of factors affecting the dividend policy and their interaction. Thus, with this study, it would be possible to give a view on the dividend policy of corporations listed on the WSE for the period from 2008 to 2016. The study covers non-financial companies listed on the WSE in Poland. The Tobit regression is used to identify the impact of factors influencing the companies’ distribution of dividends. The variables that may explain a firm’s dividend decision and that were used in this study are selected based on the theory and available empirical researches and then also determined by data availability. These are profitability, investment opportunities, measures of size, leverage, and liquidity. As a result of this study, the factors that determine the dividend policy of companies were verified in the context of the companies listed on the WSE. Moreover, it indicates which of the existing theories on dividend policy could be applied to the capital markets of Poland. Thus, it provides new insights into the theory of dividend policy.
Solution Processing of V2O5-WO3 Composite Films for Enhanced Li-Ion Intercalation Properties
Authors: Cai Chuan , Guan Dongsheng , Wang Ying 
Published: April 2019

AbstractWe have employed a simple and novel solution processing method to prepare V2O5-WO3 composite films which demonstrate enhanced Li-ion intercalation properties for applications in lithium-ion batteries. It should be noted that this solution processing method employs precursors that only contain the elements of V, W, O and H, which avoids impurity elements such as Na that has been commonly used in other solution methods. The V2O5-WO3 composite films show enhanced Li-ion intercalation properties compared to pure V2O5 and WO3 films. For example, V2O5-WO3 film with a molar ratio V2O5/WO3 of 10/1 exhibits a discharge capacity of 254 mA•h/g, while the pure V2O5 film delivers a discharge capacity of 76 mA•h/g at a high current density of 1.33 A/g. Such enhanced Li-ion intercalation properties are attributed to the reduced crystallinity and increased porosity and surface area in the composite films. In addition, the chronopotentiometric curves of the V2O5-WO3 film with a mol ratio of 10:1 are distinctively different from those of pure oxide films and other composite films with different V2O5/WO3 mol ratios, suggesting a different Li-ion intercalation process in the V2O5-WO3 film with the mol ratio of 10/1.
Enhanced Absorption in Amorphous Silicon Solar Cells Using Plasmonic and Photonic Crystals – Measurement and Simulation
Authors: Curtin Benjamin , Biswas Rana , Dalal Vikram 
Published: April 2019

AbstractWe develop experimentally and theoretically plasmonic and photonic crystals for enhancing thin film silicon solar cells. Thin film amorphous silicon (a-Si:H) solar cells suffer from decreased absorption of red and near-infrared photons, where the photon absorption length is large. Simulations predict maximal light absorption for a pitch of 700-800 nm for photonic crystal hole arrays in silver or ZnO/Ag back reflectors, with absorption increases of ~12%. The photonic crystal improves over the ideal randomly roughened back reflector (or the ‘4n2limit’) at wavelengths near the band edge. We fabricated metallic photonic crystal back-reflectors using photolithography and reactive-ion etching. We conformally deposited a-Si:H solar cells on triangular lattice hole arrays of pitch 760 nm on silver back-reflectors. Electron microscopy demonstrates excellent long range periodicity and conformal a-Si:H growth. The measured quantum efficiency increases by 7-8 %, relative to a flat reflector reference device, with enhancement factors exceeding 6 at near-infrared wavelengths. The photonic crystal back reflector strongly diffracts light and increases optical path lengths of solar photons.
Microwave Absorption of Magnetic Antidot Arrays
Authors: Malkinski Leszek M. , Yu Minghui , Scherer Donald 
Published: April 2019

AbstractThree antidot arrays with FeNi alloy thickness of 20, 50 and 100 nm have
been patterned using magnetron sputtering followed by the electron-beam
lithography and lift-off technique. Ferromagnetic resonance technique was
used to study dynamic properties of the antidot arrays. These results were
compared with the measurements of continuous films with the same composition
and thickness. Two distinct resonant fields have been observed for the bias
field aligned with the edges of the square holes. Resonance peaks shifted
towards each other and eventually merged when the in-plane bias field was
rotated towards diagonal of the squares. This dependence has been explained
in terms of magnetostatic energy associated with the square holes. The
magnitude of this effect was decreasing for the arrays with the reduced
thickness. The perpendicular and lateral quantized standing spin wave modes
were detected in the reference films and the antidot arrays due to the
perpendicular and lateral dimensional confinements.
FARKLI DİZ AÇILARI VE SÜRELERDE YAPTIRILAN STATİK GERMENİN, SIÇRAMA PERFORMANSI ÜZERİNE AKUT ETKİSİ
Authors: İnce Gonca , Yıldırım A. Serhan 
Published: April 2019

Statik germenin, vertikal sıçrama
performansına akut etkisinin olumsuz olduğu ile ilgili bilimsel çalışmalar
yapıldıktan sonra, antrenörlerin sporcu ısınma protokollerinde statik germe
egzersizlerini kullanmadıkları görülmüştür. Bu araştırma, farklı diz açıları ve
sürelerde yaptırılan statik germenin, vertikal sıçrama performansı üzerine akut
etkisini tespit etmek amacıyla yapılmıştır. Araştırmaya, Çukurova Üniversitesi
Spor Kulübü’nde oynayan 19 erkek futbolcu gönüllü olarak katılmıştır.
Katılımcıların vertikal sıçramaları, farklı diz açılarında (1500-1300)
ve sürelerde (0sn-15sn-30sn-45sn) uygulanmıştır. Ölçümler, 1500
(birinci gün) ve 1300 (ikinci
gün)diz açısında 4 farklı sürede (0sn-15sn-30sn-45sn) statik germe
ve vertikal sıçrama yaptırılmıştır. Her sıçrama sonrası, germe süresi kadar
dinlenim verilmiştir. Katılımcıların vertikal sıçramaları Takei marka Jump
Meter ile yapılırken, diz açıları baseline marka plastik goniometer (30cm) ile
ölçülmüştür. Verilerin analizinde; SPSS 21 paket programı kullanılmıştır. Verilerin
normal dağılımlarında; Shapiro-Wilk testine bakılmıştır. Sadece 45sn statik
germe değerlerinin normal dağılım göstermediği tespit edilmiştir (p=0,046). Bu
nedenle grup içi; nonparametrik testlerden Wilcoxon Testi ile gruplararası
karşılaştırmalarda ise; Mann Whitney U Testi kullanılmıştır. Normal dağılım
gösteren parametreler için; grupiçi paired t-testi, gruplararası independent
t-testi yapılmıştır. Katılımcıların sadece 1300 lik diz açısında
45sn statik germe sonunda yaptıkları vertikal sıçramanın 0sn deki sıçramadan
daha iyi olduğu tespit edilmiştir (p=0,04). Ancak, aynı diz açısında 15sn
statik germenin ise vertikal sıçramayı negatif etkilediği görülmüştür (p=0,05).
Diğer ölçümler arasında anlamlı bir farklılık çıkmamıştır (p&gt;0,05). Sonuç
olarak; sporcu ısınmalarında statik germenin belirli bir diz açısı ve sürede
yapılmasının, vertikal sıçrama performansında olumsuzluk yaratmayabileceği
vurgulanabilir.
Matematik Öğretmen Adaylarının Ders Planlarının Teknoloji Entegrasyonu Açısından Değerlendirilmesi
Authors: YİĞİT KOYUNKAYA Melike , TATAROĞLU TAŞDAN Berna 
Published: April 2019

Bu çalışmanın amacı, ortaöğretim matematik öğretmen adaylarının
teknoloji temelli bir ders sonunda hazırladıkları ders planlarının
değerlendirilmesidir. Bu değerlendirmede Teknolojik
Pedagojik Alan Bilgisi Temelli Teknoloji Entegrasyon Değerlendirme Rubriği kullanılmıştır. Nitel
araştırma paradigması benimsenen çalışmada katılımcılar 40 matematik öğretmen
adayıdır. Çalışmanın verileri, öğretmen adaylarının hazırladıkları ders
planlarından oluşmaktadır. Veriler, doküman analizi yöntemiyle analiz
edilmiştir. Ders planlarının içerikleri incelendiğinde dersleri için en çok 10.
Sınıf seviyesindeki konuları seçtikleri, teknoloji entegrasyonunu en çok akıllı
tahta ve dinamik matematik yazılımları kullanarak yaptıkları görülmüştür.
Değerlendirme rubriğine göre, öğretmen adayları öğretim programındaki teknoloji
kullanım hedefini karşılarken, öğretim stratejilerini/yöntemlerini
öğretimlerine yansıtmada sınırlı kalmışlardır. Ayrıca öğretmen adayları,
program hedefleri ve öğretim stratejileri/yöntemleri ile uyumlu ders planları
geliştirirken, alan, pedagoji ve teknolojinin uyumu konusunda zorluk
çekmişlerdir
THE EMPATHY DIFFERENCE OF CHILDREN IN LATE CHILDHOOD SEEN ON THE ATTACHMENT PATTERNS TO MOTHERS
Authors: Fakhruddiana Fuadah , Nur Utomo Unggul Haryanto 
Published: April 2019

Purpose: The purpose of this research is to describe the different empathy for children in late childhood with secure attachment, avoidance attachment, and ambivalent/resistant attachment patterns. The subjects consist of children aged 10/11 – 12/13 years old that were born and lived by the mothers.
Methodology: The method used in this research is the quantitative method by conducting significance testing. The data of child empathy variables are taken by semi-projective measuring tool of questions in order to explore the cognitive, affective, and motivational aspects. On the other hand, the data of attachment patterns for mother-child variables are obtained through the measuring tool in the form of force choices in which each item directly indicates the attachment pattern of the child.
Results: The result of the hypothesis depicts that F = 0.673 with p = 0.415, that is p > 0.05 refers to the decline of the hypothesis. It clearly states that there is no difference found on children in late childhood with secure attachment, avoidance attachment, and ambivalent/resistant attachment.
Implications: As a summary, the child empathy reviewed on each attachment pattern to the mother is not evident. This might happen due to the not-varied data as the research sample which is merely obtained at the school and other factors that affect the development of empathy of children in addition to the attachment pattern of the child with his mother.
INTEGRATING BODY LANGUAGE INTO CLASSROOM INTERACTION: THE KEY TO ACHIEVING EFFECTIVE ENGLISH LANGUAGE TEACHING
Authors: W. Pratolo Bambang 
Published: April 2019

Purpose: The purpose of this paper is to prove the importance of understanding body language to achieve the effectiveness of English language classes.
Methodology: Literature investigation is carried out to confirm the objective of this paper.
Results: In the teaching and learning process, effective communication between a teacher and students is the utmost importance. The failure to establish effective communication in the classroom setting will result in a deficiency of the teaching and learning process.
Implications: It is the fact that many cues of body language are culture-specific and therefore the only way to improve the understanding of body language is by interacting with people from different cultural backgrounds so that they can share socio-cultural and linguistic norms. Thus, the experience will enrich the teacher with cross-cultural nonverbal behavior which benefits his performance in the classroom. Both teachers' and students' knowledge of non-verbal language play very significant roles in making the classroom interaction successful. Therefore, finally, a summary is presented to reconfirm the importance of integrating body language into classroom interaction.
ROLE OF SELF CONCEPT, EMOTIONAL REGULATION, EMPATHY IN PREDICTING FORGIVENESS IN TEENS OF JUNIOR HIGH SCHOOL STUDENTS IN SURABAYA
Authors: Prihastiwi Wiwik Juwarini 
Published: April 2019

Purpose of Study: This research aimed to determine variables which are between self-concept, emotional regulation and empathy are the strongest predictors of forgiveness. The subjects were the teenagers in the 2nd grade of junior high school in Surabaya of Indonesia. The subjects were 111 people that consist of 60 boys and 51 girls.
Methodology: The research design was quantitative which correlated between self-concept, emotional regulation, empathy, and forgiveness. Data analysis was multiple regressions.
Results: The result of the test showed that there was a very significant positive correlation empathy, emotional regulation with forgiveness (significance level p <.05). On the contrary, there was no significant correlation self-concept with forgiveness. All predictors, self-concept, emotional regulation and empathy contributed 31.4% on forgiveness. The result also obtained that emotional regulation that was a stronger predictor of forgiveness (74.1%) compared to empathy (16.1%) and then there were no differences of emotional regulation and forgiveness based on gender, but girls are higher in empathy than boys.
Implications/Applications: The results showed that it gave the contribution to the therapy of forgiveness teenagers.
Dexamethasone implant (Ozurdex®) migration to anterior chamber through a congenital iris coloboma: A case report
Authors: Glidai Yoav , Schwartz Shulamit , Cohen Eyal 
Published: April 2019

Abstract
Background: Ozurdex® 0.7 mg (dexamethasone 0.7 mg implant, Allergan, Dublin, Ireland), an intra-vitreal biodegradable implant indicated for cystoid macular edema due to variable causes. One of its known complications is implant migration to the anterior chamber, causing corneal edema that in some cases might be irreversible. Reported risk factors for device migration are open or defective lens capsule and prior history of vitrectomy. We present a case of dexamethasone implant migration through a congenital iris coloboma in a pseudophakic patient with intact lens capsule.
Case presentation: 56-year-old pseudophakic man with a history of congenital iris coloboma, myopia, retinal tears and a Branch Retinal Vein Occlusion (BRVO) with subsequent Cystoid Macular Edema (CME) which was resistant to anti-VEGF medications but responsive to corticosteroids. He presented with sudden painless decreased vision in his left eye, eight weeks after dexamethasone implant (Ozurdex®) injection to the same eye. Upon presentation he was diagnosed with corneal edema caused by anterior chamber migration of the implant. He was referred for immediate surgical intervention and the implant was extracted, with the edema completely resolved within two weeks post-op.
Conclusions: This is the first case reported of implant migration through an iris coloboma in the setting of intact posterior capsule. In addition, we describe a novel approach for implant removal surgery that is simple and efficient. This case sheds a light on another risk factor that should be taken into consideration in the management of this patient population.
Water hammer protective performance of a spherical air vessel caused by a pump trip
Authors: Shi Lin , Zhang Jian , Yu Xiaodong , Chen Sheng 
Published: April 2019

Abstract
The use of air vessels is an effective measure to control water hammer in a long-distance water supply system. The traditional shape of such vessels is cylindrical. In this paper, an innovative spherical air vessel is proposed to improve the force characteristics of the tank. A mathematical model of the spherical air vessel was established using the method of characteristics. A comparison was performed of water-hammer protection performance between the spherical air vessel and the cylindrical air vessel based on a practical water supply project. Furthermore, a sensitivity analysis on the parameters of the spherical air vessel was performed. The results showed that the spherical air vessels had better protective performance compared with the cylindrical air vessels. Under the same protection requirements, the spherical air vessel can reduce the total volume and surface area by more than 10%. In addition, for a fixed volume of the spherical air vessel, the protective effect improves with the increase of the initial gas volume. Increasing the connecting pipe diameter of the air vessel is beneficial for low-pressure protection, whereas it is adverse to high-pressure protection; in contrast, altering the installation elevation has little effect on water-hammer protection.
Characteristics of impervious surface and its effect on direct runoff: a case study in a rapidly urbanized area
Authors: Li Chunlin , Liu Miao , Hu Yuanman , Zong Min , Zhao Minghua , Todd Walter M. 
Published: April 2019

Abstract
In recent years, many cities have experienced serious urban flood and non-point pollution issues due to hydrological process changes in rapidly urbanizing areas. Understanding the relationship between impervious surface and direct runoff is important for urban planning to protect the urban hydrological system. In this study, we used a mixed spectral decomposition method to interpret the long-term series of impervious surface of Shenyang, China. Direct runoff was evaluated by an improved SCS-CN (Soil Conservation Service curve number) model, and the relative influences of five underlying surface factors on the direct runoff of each period were analyzed by boosted regression trees. The overall impervious area was significantly increased in both the study area and built-up area from 1984 to 2015. The impervious ratio showed a decreasing trend in the built-up area and increasing trend in the whole study area. The runoff coefficient of the built-up area showed a significantly decreasing trend. The runoff ratio of the built-up area to the whole study area was increased dramatically, reaching 0.26 by 2015. NDVI (normalized distribution vegetation index), vegetation, and impervious surface were the most important urban surface conditions in the study area for direct runoff generation. The relative influence of impervious surface showed a rapidly increasing trend and then gradually decreased from 2000.