bluuebunny/crossref_metadata_2025_split huggingface dataset:
Análise de Sentimento para Reviews Apresentados em Vídeos: Modelo de Redes Neurais Treinado em Base de Reviews Escritos/ Sentiment Analysis for Reviews Featured in Videos: Neural Network Model Trained on Written Reviews Database
Authors: Costa João Paulo Vieira , Barros Romulo Baldez de , Dantas Caio César Silva , Sousa Raquel Cristina de , Gouveia Cristiano Gonçalves Nascimento , Mirapalheta Gustavo Correa 
Published: January 2021

A análise de sentimentos tem sido apresentada como uma técnica importante para avaliação de reviews em grandes volumes de dados disponibilizados nas redes sociais. Este trabalho apresenta uma abordagem de busca dos textos a partir de transcrições de vídeos disponibilizados sobre reviews de smartphones e aplica a análise de sentimentos neste context a partir do treinamento de modelo de Redes Neurais Convolutivas em uma base de dados com 10.063.255 reviews escritos de um site de compras online e avaliado o seu desempenho em classificações dos trechos de reviews classificados manualmente pelos pesquisados. Como resultado, conclui-se que o aproveitamento do padrão textual observado em uma base de dados de reviews escritos pode trazer resultados positivos mesmo aplicado em um padrão diferente e que não esteja disponível ou classificada para uma tarefa de aprendizado supervisionado.
Identification and Mitigation of a Vibrational Telescope Systematic with Application to Spitzer
Authors: Challener Ryan C. , Harrington Joseph , Jenkins James , Kurtovic Nicolás T. , Ramirez Ricardo , McIntyre Kathleen J. , Himes Michael D. , Rodríguez Eloy , Anglada-Escudé Guillem , Dreizler Stefan , Ofir Aviv , Peña Rojas Pablo A. , Ribas Ignasi , Rojo Patricio , Kipping David , Butler R. Paul , Amado Pedro J. , Rodríguez-López Cristina , Palle Enric , Murgas Felipe 
Published: January 2021

Abstract
We observed Proxima Centauri with the Spitzer Space Telescope Infrared Array Camera five times in 2016 and 2017 to search for transits of Proxima Centauri b. Following standard analysis procedures, we found three asymmetric, transit-like events that are now understood to be vibrational systematics. This systematic is correlated with the width of the point-response function (PRF), which we measure with rotated and nonrotated-Gaussian fits with respect to the detector array. We show that the systematic can be removed with a novel application of an adaptive elliptical-aperture photometry technique, and compare the performance of this technique with fixed and variable circular-aperture photometry, using both BiLinearly Interpolated Subpixel Sensitivity (BLISS) maps and nonbinned Pixel-Level Decorrelation (PLD). With BLISS maps, elliptical photometry results in a lower standard deviation of normalized residuals, and reduced or similar correlated noise when compared to circular apertures. PLD prefers variable, circular apertures, but generally results in more correlated noise than BLISS. This vibrational effect is likely present in other telescopes and Spitzer observations, where correction could improve results. Our elliptical apertures can be applied to any photometry observations, and may be even more effective when applied to more circular PRFs than Spitzer’s.
Narrowband Observations of Comet 46P/Wirtanen during Its Exceptional Apparition of 2018/19. I. Apparent Rotation Period and Outbursts
Authors: Farnham Tony L. , Knight Matthew M. , Schleicher David G. , Feaga Lori M. , Bodewits Dennis , Skiff Brian A. , Schindler Josephine 
Published: January 2021

Abstract
We obtained broad- and narrowband images of the hyperactive comet 46P/Wirtanen on 33 nights during its 2018/2019 apparition, when the comet made a historic close approach to the Earth. With our extensive coverage, we investigated the temporal behavior of the comet on both seasonal and rotational timescales. We used CN observations to explore the coma morphology, revealing that there are two primary active areas that produce spiral structures. The direction of rotation of these structures changes from pre- to postperihelion, indicating that the Earth crossed the comet’s equatorial plane sometime around perihelion. We also used the CN images to create photometric light curves that consistently show two peaks in the activity, confirming the two source regions. We measured the nucleus’s apparent rotation period at a number of epochs using both the morphology and the light curves. These results all show that the rotation period is continuously changing throughout our observation window, increasing from 8.98 hr in early November to 9.14 hr around perihelion and then decreasing again to 8.94 hr in February. Although the geometry changes rapidly around perihelion, the period changes cannot be primarily due to synodic effects. The repetition of structures in the coma, both within a night and from night to night, strongly suggests that the nucleus is in a near-simple rotation state. We also detected two outbursts, one on December 12 and the other on January 28. Using the apparent velocities of the ejecta in these events, 68 ± 5 and 162 ± 15 m s−1, respectively, we derived start times of 2018 December 12 at 00:13 UT ± 7 minutes and 2019 January 27 at 20:01 UT ± 30 minutes.
Evidence for Prescribed NK Cell Ly-49 Developmental Pathways in Mice
Authors: Millan Alberto J. , Hom Bryan A. , Libang Jeremy B. , Sindi Suzanne , Manilay Jennifer O. 
Published: January 2021

Abstract
Previous studies of NK cell inhibitory Ly-49 genes showed their expression is stochastic. However, relatively few studies have examined the mechanisms governing acquisition of inhibitory receptors in conjunction with activating Ly-49 receptors and NK cell development. We hypothesized that the surface expression of activating Ly-49 receptors is nonrandom and is influenced by inhibitory Ly-49 receptors. We analyzed NK cell “clusters” defined by combinatorial expression of activating (Ly-49H and Ly-49D) and inhibitory (Ly-49I and Ly-49G2) receptors in C57BL/6 mice. Using the product rule to evaluate the interdependencies of the Ly-49 receptors, we found evidence for a tightly regulated expression at the immature NK cell stage, with the highest interdependencies between clusters that express at least one activating receptor. Further analysis demonstrated that certain NK clusters predominated at the immature (CD27+CD11b−), transitional (CD27+CD11b+), and mature (CD27−CD11b−) NK cell stages. Using parallel in vitro culture and in vivo transplantation of sorted NK clusters, we discovered nonrandom expression of Ly-49 receptors, suggesting that prescribed pathways of NK cluster differentiation exist. Our data infer that surface expression of Ly-49I is an important step in NK cell maturation. Ki-67 expression and cell counts confirmed that immature NK cells proliferate more than mature NK cells. We found that MHC class I is particularly important for regulation of Ly-49D and Ly-49G2, even though no known MHC class I ligand for these receptors is present in B6 mice. Our data indicate that surface expression of both activating and inhibitory Ly-49 receptors on NK cell clusters occurs in a nonrandom process correlated to their maturation stage.
Comparative Antibacterial Activity of Five Brands of Ciprofloxacin Injectables in Nigeria
Authors: Idowu P. A. , Shonubi E. O. 
Published: January 2021

Background: Ciprofloxacin, a widely used antimicrobial agent, is available in Nigeria in various tablet and injectable dosage forms. In this era of fake and substandard drugs, it is important to be sure of the quality and antimicrobial potency of ciprofloxacin injectables imported and sold in Nigeria.Objectives: This study is aimed at evaluating and comparing the antibacterial efficacy of five different brands of ciprofloxacin infusion available in Nigeria against clinical bacterial isolates.Method: Ultraviolet-visible (UV-VIS) spectroscopy was used to determine the percentage content of active pharmaceutical ingredient in each brand, while antibacterial activities were compared against five bacterial strains including: Escherichia coli (E), Klebsiella pneumoniae (K), Pseudomonas aeruginosa (Ps), Proteus mirabilis (Pr), Staphylococcus aureus (St) and Salmonella typhi (Sa). Minimum inhibitory concentrations (MICs) and the minimum bactericidal concentration (MBCs) were determined by broth dilution method. Statistical analysis of the results obtained was done by ANOVA.Result: The percentage content of all the five brands of ciprofloxacin injection was not less than the specification (95-105%) of the British Pharmacopoeia, BP (2009). The susceptibility test showed that 16 out of 30 (53.3%) isolates were multidrug resistant. Ciprofloxacin was active on most of the clinical isolates which justify its wide use in treating infections in Nigeria; however, resistance to ciprofloxacin is increasing.Conclusion: Comparing the different brands, there was slight variation but no significant difference (p> 0.05) in their antibacterial activity (p= 0.96, 0.999 for sensitivity at 10μg/ml and MIC respectively).
Keywords: Ciprofloxacin brands, Fake drugs, Physicochemical analysis, Antibacterial, Antimicrobial resistance
Kemampuan Mengenal Huruf Hijaiyah Melalui Media Kartu Bergambar
Authors: Hasan Syahrizal  , Sukarno  , Abdul Muntholib  
Published: January 2021

Improper use of media in introducing arabic alphabets becomes one of the triggers for chldren’s difficulties in recognizing Arabic alphabets which have similarities in form but they are different in pronunciation. They will impact much to children recitation of holy Qur’an. This study aims at supporting media of picture card for introduction of Arabic alphabets to children. The study provided description of the process of introducing Arabic alphabets from several studies related to media of picture card for introducing Arabic alphabets. It also provided activities of introducing Arabic alphabets from the first step to the last of the study. The descriptions provided are about aspects to introducing Arabic alphabets such as pronunciation, pointing out, and distinguishing.
Linguistic and Cultural Shifts of the Aranadan Tribe in Kerala
Authors:   University of Kerala, India, Robert Sam 
Published: January 2021

Language and cultural shifts are the major causes of endangerment of any community, which begins from minor switching of practices and verbal repertoires and ends with a whole change of community, and finally culminates in the community losing its own identity. Language shift usually takes place in a bilingual or multilingual speech community. It is a social phenomenon, whereby one language replaces another in a given society due to underlying changes in the composition and aspirations of the society. This process transitions from speaking the old to the new language. This is not fully a structural change caused by the dynamics of the old language as a system. The new language is adopted as a result of contact with another language community. The term language shift excludes language change which can be seen as an evolution, and hence the transition from older to newer forms of the same language. Contact between two or more cultures often leads to different sociological processes such as acculturation, cultural change, cultural genocide, and cultural shift. Cultural shift occurs when a community gives up its own socio-cultural practices like customs, rituals and traditional beliefs, and is characterized by changes in cultural symbols, rules of behavior, social organizations, or value systems. It differs from the process of cultural change in which a community’s culture can evolve independently. Shifts may take place at the level of an individual speaker who gradually forgets or shifts to another language and consequently this language spreads to an entire community. This phenomenon can be seen among the Aranadans, a primitive tribal community found mainly in the Malappuram district and in other Northern districts such as Kasargode and Kannur of Kerala, owing to their irreverence towards the preservation of their own language and culture. The socio-ecological, psychological and educational factors impact their language and cultural shifts. This paper illustrates and clarifies the reasons for the language and cultural shifts of the Aranadan tribal community.
Polysemy of Words Expressing Human Body Parts of The Four Limb Area in Thai Language in Vietnam
Authors:   Tay Bac University, Vietnam, Ha Thi Mai Thanh 
Published: January 2021

The nomenclature and polysemiosis of body parts has constituted a central part of linguistics, and of Linguistic Anthropology. The ramifications of such work make inroads into our understandings of many fields, including language contact, semiotics, and so forth, This current paper identifies the structures and emerging denotations of expressions of human body parts (HBPs) in Thai language, and ways in which these dimensions reflect polysemy. The study thus applies the following methods: Field research methods of linguistics, description, comparison, and collation. As sources of data, this study surveys Thai rhymes, fairy tales, riddles and riddle songs, rhyming stories, children’s songs and linguistic data of daily speeches in the northwest of Vietnam. The paper uses theories on word meaning and the transformation of word meaning. To aid analysis, this paper applies methods of analyzing meaning components so to construct significative meaning structures of words expressing HBPs in Thai language, thus identifying the semantemes chosen to be the basis for the transformation. In the polysemy of words expressing HBPs of the four limbs, the polysemy of words expressing the following parts were studied: khèn - tay, cánh tay (arm); mễ – tay, bàn tay (hand); khà - đùi (thigh); tìn - chân, bàn chân (leg, foot). Directions of semantic transformation of words expressing HBPs in Thai language are as diversified and as multi-leveled as Vietnamese. Furthermore, in Thai language, there occur differences in the four scopes of semantic transformation, as compared with Vietnamese, including “people’s characteristics,” “human activities,” “nomination of things with activities like HBPs’ activities,” and “unit of measurement.” This study contributes to Linguistic Anthropology by suggesting that the polysemy of words expressing HBPs of the four limb area in Thai language will outline a list of linguistic phenomena which serve as the basis to understand cultural and national features, in the light of perception and categorization of the reality of the Thai minority with reference to Vietnamese.
Devising an Orthography for the Cak Language by Using the Cak Script
Authors:   Kyoto University, Japan, Keisuke Huziwara 
Published: January 2021

Cak (ISO 639-3 ckh) represents a Tibeto-Burman language spoken in the Chittagong Hill Tracts, Bangladesh. The language is known as Sak in Rakhaing State, Burma. The total number of native speakers of the language is estimated at approximately 3,000 in Bangladesh and 1,000 in Burma (Simons and Fennig eds. 2017). Although Cak and Sak are mutually understandable where native words are concerned, comprehensibility becomes arduous with Bangla loan words in Cak, and with Arakanese/Burmese loan words in Sak. Until recently, Cak/Sak did not have a script of its own. However, by the beginning of the 21st century, the Cak script was developed and finally published as Ong Khyaing Cak (2013), in which its fundamental system is described. Although well designed overall, the current Cak writing system found in Ong Khyaing Cak (2013) has several shortcomings. Huziwara (2015) discusses the following five instances: (a) No independent letter for /v/, (b) unnecessary letters for the non-phonemic elements such as the voiced aspirated stops and the retroflexes, (c) the arbitrary use of short and long vowel signs, (d) a frequent omission of high tone marks in checked syllables, and (e) multiple ways to denote coda consonants. In this paper, Huziwara (2015) will first be reviewed. Then, the basic phonetic correspondences between Cak in Bangladesh and Sak in Burma will be examined. Finally, based on these two discussions, an orthography to be employed in the forthcoming Cak-English-Bangla-Burmese dictionary, a revised version of Huziwara (2016), will be demonstrated.
State of the dentoalveolar system in children from mothers with gestational hypertension
Authors: L. A. Saidova  , N. N. Khabibova  
Published: January 2021

Development of diagnostic and practical criteria for arterial hypertension and complications in children from mothers with gestational hypertension against the background of the use of calcium channel inhibitors.
In 2018, new European recommendations on cardiovascular diseases during pregnancy and European recommendations on arterial hypertension were published, which have special sections on hypertension in pregnant women. The recommendations draw attention to the fact that hypertensive disorders during pregnancy are the most common medical complications affecting 5-10% of pregnancies worldwide, and remain the main cause of maternal, fetal and neonatal morbidity and mortality. The fetus is at high risk of intrauterine growth retardation (25% of cases in preeclampsia (PE), prematurity (27% of cases in PE), and intrauterine death (4% of cases in PE). Women with a high or moderate risk of developing PE are recommended to take 100-150 mg of acetylsalicylic acid daily between 12 and 36-37 weeks of pregnancy (recommendation class 1, evidence level A). In addition, to prevent PE in women with low calcium intake (<600 mg/day), it is recommended to introduce calcium into the diet (1.5-2 g/day, orally), which should begin after the first visit to the women's consultation. The recommendations specifically draw attention to the fact that vitamins C and E do not reduce the risk of PE.
Influence of environmental factors on binding of hybrid grains of interspecific wheat hybrods
Authors: I.Sh. Jabbarov  , T.R. Madjidova  
Published: January 2021

According to the results of the study, it was found that the percentage of hybrid grain setting in inter specific wheat hybrids depends both on the genotypic characteristics of the crossing forms and on environmental factors. Therefore, the study of the influence of environmental factors on the setting of hybrid grains should be carried out in various climatic conditions that provide the maximum possible modification variability.
Nutritional composition and sensory properties of raw and roasted “Niri” (Citrullus vulgaris) puree extended beef sausages
Authors: ADUA Edward Ayinbila , ADZITEY Frederick , TEYE Gabriel Ayum , ABU Alexander 
Published: January 2021

The rising demand for quality meat products at competitive prices demands that processors explore less costly local feed resources for incorporation into meat products. This study investigated the effects of raw and roasted “Niri” (Citrullus vulgaris) purees (as an extender) on the nutritional and sensory qualities of beef sausages. “Niri” purees (treatments) were randomly assigned to minced beef. That is, raw (RaP) and roasted (RoP) “Niri” purees were separately added to 1kg minced beef at 0% (control), 5%, 15% and 25% inclusion levels. The proximate composition, mineral concertation and sensory attributes were evaluated. The study revealed a significant difference (P<0.05) in all proximate parameters with RaP 25% recording the highest protein, ash and fat content, RoP 25% had the highest carbohydrate content while the control had the highest moisture content in percentage per gram on dry matter basis. There was increasing proximate values as the inclusion levels increased except moisture where there was a reverse. Protein, fat, ash and carbohydrates recorded values that were in the range of 18.14 - 22.02%, 0.42 - 3.07%, 1.31 - 2.16%, and 0.26 - 2.94%, respectively for all samples. pH values ranged from 5.84 - 6.15, with the highest values recorded in high inclusion products. Mineral contents ranged from 2.67 - 3.63mg/g (calcium), 0.20 - 0.34mg/g (iron), 27.33 - 29.92mg/g (potassium), 15.10 - 21.86mg/g (magnesium) and 0.45 - 0.62mg/g (zinc) in all samples. Sausages extended with raw purees generally had significant (P< 0.05) mineral levels than the roasted puree products. There were no significant differences (P> 0.05) in all sensory parameters evaluated except colour and tenderness (P< 0.05). Products extended with raw “Niri” had better colour scores (3.46 - 3.6) than roasted “Niri” puree extended products (1.73 – 2.66). The addition of “Niri” improved the nutritional quality of beef sausages, however, it significantly (P> 0.05) affected the colour and tenderness of beef sausages.
Fashion Trends
Authors: Kim Eundeok , Fiore Ann Marie , Payne Alice , Kim Hyejeong 
Published: January 2021

In a fast-moving global industry how does anyone know what the next trend will be? To answer this question, fashion professionals engage in a systematic, analytical process to predict and understand changes in society and consumer behavior. Forecasting companies and developers collect information related to culture, the economy, politics, and technology that may influence future trends. Gleaning information wherever they can, online or from books, arts, music, movies, fashion, and architecture, fashion forecasters research cultural indicators that signpost new ways of living, shopping, and designing.
Fashion Trends offers a clear pathway into the theory and practice of forecasting fashion, using professional case studies to demonstrate each technique and concept. This revised edition includes expanded coverage of social media, crowd sourcing, digital influencers, and the use of technology such as augmented reality, radio-frequency identification (RFID), and big data. With the rise of individualism, the authors also walk you through the “end of fashion” and what comes next, including clothing subscription and rental services, the circular economy, transparency and traceability, and the role of forecasting in provoking the desire for a sustainable lifestyle.
Dance and Activism
Authors: Mills Dana 
Published: January 2021

This study focuses on dance as an activist practice in and of itself, across geographical locations and over the course of a century, from 1920 to 2020. Through doing so, it considers how dance has been an empowering agent for political action throughout civilisation.
Dance and Activism offers a glimpse of different strategies of mobilizing the human body for good and justice for all, and captures the increasing political activism epitomized by bodies moving on the streets in some of the most turbulent political situations. This has, most recently, undoubtedly been partly owing to the rise of the far-right internationally, which has marked an increase in direct action on the streets.
Offering a survey of key events across the century, such as the fall of President Zuma in South Africa; pro-reproductive rights action in Poland and Argentina; and the recent women’s marches against Donald Trump’s presidency, you will see how dance has become an urgent field of study. Key geographical locations are explored as sites of radical dance – the Lower East Side of New York; Gaza; Syria; Cairo, Iran; Iraq; Johannesburg – to name but a few – and get insights into some of the major figures in the history of dance, including Pearl Primus, Martha Graham, Anna Sokolow and Ahmad Joudah. Crucially, lesser or unknown dancers, who have in some way influenced politics, all over the world are brought into the limelight (the Syrian ballerinas and Hussein Smko, for example).
Dance and Activism troubles the boundary between theory and practice, while presenting concrete case studies as a site for robust theoretical analysis.