bluuebunny/crossref_metadata_2025 huggingface dataset:
Publishing computational research - a review of infrastructures for reproducible and transparent scholarly communication
Authors: Konkol Markus , Nüst Daniel , Goulier Laura
Published: July 2020

Background

The trend toward open science increases the pressure on authors to provide access to the source code and data they used to compute the results reported in their scientific papers. Since sharing materials reproducibly is challenging, several projects have developed solutions to support the release of executable analyses alongside articles.

Methods

We reviewed 11 applications that can assist researchers in adhering to reproducibility principles. The applications were found through a literature search and interactions with the reproducible research community. An application was included in our analysis if it (i) was actively maintained at the time the data for this paper was collected, (ii) supports the publication of executable code and data, (iii) is connected to the scholarly publication process. By investigating the software documentation and published articles, we compared the applications across 19 criteria, such as deployment options and features that support authors in creating and readers in studying executable papers.

Results

From the 11 applications, eight allow publishers to self-host the system for free, whereas three provide paid services. Authors can submit an executable analysis using Jupyter Notebooks or R Markdown documents (10 applications support these formats). All approaches provide features to assist readers in studying the materials, e.g., one-click reproducible results or tools for manipulating the analysis parameters. Six applications allow for modifying materials after publication.

Conclusions

The applications support authors to publish reproducible research predominantly with literate programming. Concerning readers, most applications provide user interfaces to inspect and manipulate the computational analysis. The next step is to investigate the gaps identified in this review, such as the costs publishers have to expect when hosting an application, the consideration of sensitive data, and impacts on the review process.
Comparing the effect of aromatherapy with peppermint and lavender on the sleep quality of cardiac patients: a randomized controlled trial
Authors: Mahdavikian Somayeh , Rezaei Mansour , Modarresi Masoud , Khatony Alireza
Published: July 2020

Background

Sleep disorder is a critical problem in cardiac patients. This study aimed to compare the effects of aromatherapy ‌with peppermint and lavender essential oils on the sleep quality of cardiac patients.

Methods

A total of 105 patients were randomly allocated to three groups of peppermint essential oil, lavender essential oil, and control. In each experimental group, the patients inhaled three drops of lavender and peppermint essential oils, whereas the control group received aromatic distilled water. Data were collected using the Pittsburgh Sleep Quality Index (PSQI). The participants completed PSQI before and after the intervention.

Results

There was a significant difference in the mean score of PSQI in each of the experimental groups before and after the intervention; however, the difference was not statistically significant between the experimental groups.

Conclusion

Aromatherapy with lavender and peppermint essential oils can improve the sleep quality of cardiac patients. Therefore, use of this non-pharmacological intervention, as an effective and simple approach, is recommended for cardiac patients.

Trial registration

IRCT, IRCT201601244736N10. Registered 4 November 2016.
Improvement work in mental healthcare: an example from Region Jönköping County, Sweden
Authors: Ros Axel , Österström Anna , Henriks Göran , Andersson-Gäre Boel
Published: July 2020

Region Jönköping County (RJC) in Sweden is a healthcare system that is characterised by sustainable work with quality in healthcare and long-term system-wide improvement. This article describes important factors behind the improvement work in RJC, and how the improvement methods and initiatives have been adopted also in mental healthcare. For example, patients otherwise eligible for admission to a psychiatric department were treated at home after introduction of home treatment teams. Patient satisfaction was high and the number of visits to the emergency department, hospital admissions and hospital stay decreased.
Cryo-EM of human Arp2/3 complexes provides structural insights into actin nucleation modulation by ARPC5 isoforms
Authors: von Loeffelholz Ottilie , Purkiss Andrew , Cao Luyan , Kjaer Svend , Kogata Naoko , Romet-Lemonne Guillaume , Way Michael , Moores Carolyn A.
Published: July 2020

The Arp2/3 complex regulates many cellular processes by stimulating formation of branched actin filament networks. Because three of its seven subunits exist as two different isoforms, mammals produce a family of Arp2/3 complexes with different properties that may be suited to different physiological contexts. To shed light on how isoform diversification affects Arp2/3 function, we determined a 4.2 Å resolution cryo-EM structure of the most active human Arp2/3 complex containing ARPC1B and ARPC5L, and compared it with the structure of the least active ARPC1A-ARPC5-containing complex. The architecture of each isoform-specific Arp2/3 complex is the same. Strikingly, however, the N-terminal half of ARPC5L is partially disordered compared to ARPC5, suggesting that this region of ARPC5/ARPC5L is an important determinant of complex activity. Confirming this idea, the nucleation activity of Arp2/3 complexes containing hybrid ARPC5/ARPC5L subunits is higher when the ARPC5L N-terminus is present, thereby providing insight into activity differences between the different Arp2/3 complexes.
Response to: Lipid content of whale blubber cannot be measured using biopsies
Authors: Christiansen Fredrik , Sprogis Kate R. , Gross Jasmin , Castrillon Juliana , Warick Hunter A. , Leunissen Eva , Bengtson Nash Susan
Published: July 2020

Ryan, C. (2020). Lipid content of whale blubber cannot be measured using biopsies. J. Exp. Biol. 223, jeb227710. doi:10.1242/jeb.227710
Consistent Morning Exercise May Be Beneficial for Individuals With Obesity
Authors: Schumacher Leah M. , Thomas J. Graham , Raynor Hollie A. , Rhodes Ryan E. , Bond Dale S.
Published: July 2020

This review explores the hypothesis that a consistent exercise time, especially consistent morning exercise, improves exercise adherence and weight management for individuals with overweight or obesity. We discuss data supporting this premise, identify limitations of current research, and outline directions for future research on exercise timing to more robustly evaluate our thesis.
Assessment of Neuroplasticity With Strength Training
Authors: Aagaard Per , Bojsen-Møller Jens , Lundbye-Jensen Jesper
Published: July 2020

Including a brief overview of current investigative approaches, the present Perspectives for Progress article offers an overview of potential future experiments in the field of exercise-related neuroplasticity to strength training. It is proposed that the combination of specific experimental approaches and recently developed techniques holds the potential for unraveling spinal and supraspinal mechanisms involved in the adaptation to strength training.
Myocellular Adaptations to Low-Load Blood Flow Restricted Resistance Training
Authors: Vissing Kristian , Groennebaek Thomas , Wernbom Mathias , Aagaard Per , Raastad Truls
Published: July 2020

Low-load blood flow restricted resistance exercise (BFRRE) can stimulate whole-muscle growth and improve muscle function. However, limited knowledge exists on the effects at the myocellular level. We hypothesize that BFRRE has the ability to produce concurrent skeletal muscle myofibrillar, mitochondrial, and microvascular adaptations, thus offering an alternative strategy to counteract decay in skeletal muscle health and function in clinical populations.
Engineering Person-Specific Behavioral Interventions to Promote Physical Activity
Authors: Conroy David E. , Lagoa Constantino M. , Hekler Eric , Rivera Daniel E.
Published: July 2020

Physical activity is dynamic, complex, and often regulated idiosyncratically. In this article, we review how techniques used in control systems engineering are being applied to refine physical activity theory and interventions. We hypothesize that person-specific adaptive behavioral interventions grounded in system identification and model predictive control will lead to greater physical activity than more generic, conventional intervention approaches.
Kaszubska postpamięć
Authors: Kalinowski Daniel
Published: July 2020

Kashubian Post-memory. Some Contemporary Examples The article contains analyses of several contemporary literary texts concerning the category of post-memory written in the background of the Kashubian culture. It mainly interprets prose works (Drewz, Bunda, Drzeżdżon) as well as the novel on which the film Kamerdyner was based. The analyses led to determining the phenomena defined by Sigmund Freud related to psychoanalysis and referring to the works by A. and J. Assmann, M. Hirsch and D. LaCapra. Thus Kashubian literature, written in Polish and Kashubian, shows post-memory mechanisms in the form of crowding out, transferring, repeating and overcoming the trauma of World War II.
Temporal Distance and Price Responsiveness: Empirical Investigation of the Cruise Industry
Authors: Joo Mingyu , Gauri Dinesh K. , Wilbur Kenneth C.
Published: July 2020

Temporal distance refers to the time between purchase and consumption in advanced-sales industries. We explore how the response of aggregate demand to price changes with temporal distance in a large, proprietary data set of Florida cruise prices, bookings, and product attributes. We offer the first evidence that cruise demand becomes more sensitive to price during the advance sales period, unlike extant findings in other settings. The results also show that demand is greatest late in the advance sales period, providing the first finding that a late-season high-demand period coincides with a late-season increase in aggregate price sensitivity. The high-demand effect more than offsets the high-price-responsiveness pattern, leading the firm to increase prices throughout the advance sales period. Although the data do not disentangle multiple competing explanations for the main findings, they are large enough to appear in simple data visualizations and robust enough to replicate across many model specifications, parameterizations, and partitions of the data.

This paper was accepted by Matthew Shum, marketing.
Gluteal projection and augmentation using polycaprolactone-based filler: a promising new indication
Authors: Santaella-Sosa Erick
Published: July 2020

Buttock improvement and augmentation have become a whole new challenge to the medical aesthetics field. Nowadays, besides surgical options, the only available non-surgical treatment for gluteal augmentation is the injection of biocompatible fillers. Nevertheless, these minimally invasive treatments have their own limitations. In the quest to find a better option to treat this specific area, the idea of using polycaprolactone (PCL) to enhance the gluteal area emerged.

The case of a 26 year-old female patient who desired a non-surgical buttock enhancement is presented. She was treated with PCL-based filler to achieve such an improvement. The clinical photographic results were outstanding, with a nine out of 10 overall satisfaction subjective score.

In conclusion, using PCL could become a new alternative to non-surgical gluteal enhancement. Due to the collagen biostimulation property of the filler, the treatment will also enhance the skin quality, giving the buttocks an overall improvement.
On the Violence of Self-Determination: The Palestinian Refugee as the Ontological Other
Authors: Tareh Muna S.
Published: July 2020

The discourse on migration and refugee studies continues to be framed around two main principles: sovereignty and identity. In contemporary politics, however, the refugee subject is defined and managed from a universal framework where the language of rights elevates the potency of liberalism as both a discourse and an instrument of domination. This article examines refugeehood from a framework that transcends the sovereignty/identity dichotomy. It offers a more nuanced contextual approach through which this mass socio-political phenomenon can be better understood. To validate the article's new methodology, it sets out to examine the Palestinian refugee question, the oldest unresolved refugee problem in the history of the modern Middle East. The article makes visible the performative role of question framing by giving particular attention to historical transfigurations in the conceptualization of the people's right to self-determination. As a discourse-based analysis, the article demonstrates how current discursive formations produce colonial knowledge that can facilitate the development of new social and political tools of population control. The article concludes by showing how conceptual transfiguration of the right to self-determination incited the orientalist scholarship on the Palestinian refugee question in the interest of legitimizing and normalizing Israel as a Western colonial establishment.
Maritime Economy and Gwadar Port: A Growth Catalyst
Authors: Kalim Inayat , Syed Areeja
Published: July 2020

Today maritime economy recognizes the seas and oceans as the main driving force for the sustainable economic growth across the globe. Pakistan with its unique geographic location is blessed with approximately 1050 km long coastline and the Exclusive Economic Zone (EEZ) covering an area of about 240,000 sq km. In a brief history of globalization, seaborne trade and sea ports have made significant contributions towards socioeconomic development, thereby strengthening economic ties among states of various regions. Similarly, Pakistan's Gwadar port emerges as an ideal hub port in the region due to its unique strategic placement to attract trade from Central Asia, Afghanistan, west China and other countries due to its proximity to the Strait of Hormuz (SoH), which is the main shipping route, and connects the Persian Gulf with the Gulf of Oman and the Arabian Sea. Today, Gwadar's geostrategic positioning enables it to monitor and control the oil trade routes and Sea Lines of Communications (SLOCs) between the regions of South Asia, West Asia, Africa and Central Asia. Gwadar's deep–sea port characteristic is one of the rare features which equips it to expand its operation to the 88 berths and capacity to anchor gigantic vessels from 100,000 DWT to 200,000 DWT. The working capacity of the Gwadar Port is equal to the Persian Gulf ports. This paper attempts to determine the potential and strength of the Gwadar Port as a growth catalyst for Pakistan as the country's international trade is directed through the sea.
Revisiting the History and Historiography of Mughal Pluralism
Authors: Kinra Rajeev
Published: July 2020

The concept ofṣulḥ-i kullis well known as a core feature of the Mughal Empire's state ideology, one that made it, comparatively speaking, arguably the most tolerant and inclusive state in the entire early modern world. Often translated as “peace with all,” the term has become almost synonymous in South Asian historiography with the policies of religious pluralism promoted by the dynasty's most celebrated emperor, Jalal al-Din Muhammad Akbar “the Great” (r. 1556–1605) and his famed courtier and biographer, Abu al-Fazl ibn Mubarak (1551–1602). Surprisingly enough, however, despite its ubiquity in discussions of Mughal attitudes toward religious and cultural pluralism, a comprehensive intellectual history of the termṣulḥ-i kulldoes not, in fact, appear to have ever been attempted. It is often taken for granted thatṣulḥ-i kullwas the obvious term to express the ethos of civility, universal reason, and inclusiveness that Akbar wanted to promote. But why did Akbar and Abu al-Fazl choose this term, specifically? What exactly did they mean by it? And how was the term actually understood in practice, not just in Akbar's era but also in the subsequent decades and indeed centuries? These are the kinds of questions this article seeks to address.
Authorship, Reception, and Memory in Early Modern Bengal: Songs Attributed to Saiyad Sultān
Authors: Irani Ayesha A.
Published: July 2020

This article examines issues of authorial memory and reception pertaining to thirteen Bangla songs (padāvalī) ascribed to the seventeenth-century Bengali Sufi poet, Saiyad Sultān. This author is best known for the Nabīvaṃśa (“The Prophet's Lineage”)—a universal history of the Prophet Muhammad. A manual on Sufi yoga entitled Jñāna Pradīpa (“Lamp of Knowledge”) also holds the authorial signature “Saiyad Sultān,” as does an acrostic poem on esoteric themes, entitled Jñāna Cautiśā (“The Thirty-Four Consonants of Knowledge”). Ten Bangla songs are ascribed likewise, while three others hold the signature of “Sultān.” The Bengali literary historians M. E. Haq and Ahmad Sharif unquestioningly attributed all of these works to a single historical figure. This essay interrogates such simplistic assumptions. After evaluating these songs in light of the authorial voices of the Nabīvamśa and the Jñāna Pradīpa, I examine how authorial memory is encoded in the Bangla literary tradition in multiple, sometimes contradictory, ways. Two frameworks are proposed to interpret the conundrum of authorship of the corpus of works written in the name of Saiyad Sultān.
At what price? Labour politics and calculative power struggles in on-demand food delivery
Authors: Doorn Niels van
Published: July 2020

This article asks what can be gained by making calculability a pivotal demand for wage politics in gig economies characterised by dynamic fee structures. It examines how a small group of Berlin-based food delivery workers attempted to challenge Deliveroo's market power by building their own makeshift calculative equipment to help them ‘reverse engineer’ the company's fee pricing algorithm. It then documents the difficulties these ‘riders’ experienced when attempting to translate their fight for calculable earnings into a more comprehensive labour politics. Finally, the article addresses the limits of market-based struggles over calculative power, against the background of a still pervasive ‘platform exceptionalism’: a socio-legal imaginary that treats platform companies as unique business entities, enabling them to engage in regulatory arbitrage while contractually enforcing the subordination and rightlessness of gig workers.
Tunable bandpass imaging filter based on resonant tunneling through a ball lens assembly
Authors: Harrison T. R. , Scheuer K. G. , DeCorby R. G.
Published: July 2020

We describe a ball lens assembly, which functions as a broadly tunable bandpass filter and polarizer with imaging capabilities. The physical basis is resonant tunneling of light through an air gap between two half-ball lenses symmetrically coated by few-layer (

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2

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a

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5

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) admittance matching stacks. Tuning is achieved by simultaneous adjustments of the incident angle and the air gap thickness. Individual filters with operational ranges spanning visible (

∼

400

−

700

n
m

) and near-infrared (

∼

1000

−

1800

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m

) wavelengths were assembled using 10 mm diameter lenses. We show that these filters, configured as a stand-alone scanning spectrometer, can provide a resolving power

∼

100

and

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-number

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2.5

for a fiber-compatible input aperture

<

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in diameter. We also demonstrate that, with supplementary optics, the tunable ball filter might be used to implement a compact hyperspectral imaging system.
Engineering multimodal dielectric resonance of TiO2 based nanostructures for high-performance refractive index sensing applications
Authors: Abbas Muhammad Aamir , Zubair Amna , Riaz Kashif , Huang Wei , Teng Jinghua , Mehmood Muhammad Qasim , Zubair Muhammad
Published: July 2020

Optical metasurface based refractive index (RI) sensors find applications in chemical, environmental, biomedical, and food processing industries. The existing RI sensors based on metals suffer from the plasmonic loss in the optical regime; in contrast, those based on Fano-type resonances generated by dielectric materials are either polarization-sensitive or are based on complex geometrical structures prone to fabrication imperfections that can lead to severe performance degradation. Here, we demonstrate that careful engineering of resonance modes in dielectric metasurfaces based on simple symmetric meta-atoms can overcome these limitations. More specifically, we have designed low-loss high-performance RI sensors using all-dielectric metasurfaces composed of TiO2 based nanostructures of three different shapes (i.e., cylindrical, square and elliptical) operating at near-infrared (NIR) wavelengths, which are robust against the perturbations of geometric parameters. In terms of physics, this work reports sensor structures achieving sharp resonant dips of high Q-factor in the transmission spectra corresponding to multiple dielectric resonance modes (i.e., electric quadrupole, magnetic dipole, and electric dipole) with superior performance as compared to the state-of-the-art. Four absolute liquids (water, ethanol, pentanol, and carbon tetrachloride) with a refractive index ranging from 1.333 to 1.453 are used to numerically validate the performance, and a maximum sensitivity of 798 nm/RIU with FOM up to 732 has been achieved.
Approaches for deep-ultraviolet surface plasmon resonance sensors
Authors: Moreira Cleumar , Wang Yunshan , Blair Steve , Chadwick Ember , Lee Ji-Young , Oliveira Leiva , Lima Antonio , Cruz Rossana
Published: July 2020

Aluminum (Al) is a preferred metal for designing deep-ultraviolet (DUV) surface plasmon resonance (SPR)-based sensors. The native oxide layer (alumina), which grows when the Al film is exposed to air, adds an extra layer to the multilayer stack and consequently affects the DUV-SPR sensing performance. To mitigate the performance loss in DUV-SPR-based sensing, new, to the best of our knowledge, approaches are considered here. We first consider chromium, indium (In), nickel, and platinum as alternative plasmonic materials to Al. In-film-based DUV-SPR sensors exhibit the best performance parameters compared to these alternative materials. We next consider the approach of replacing the native oxide layer by an ultrathin gold (Au) layer on top of bare Al or In. With an optimal Au thickness, higher sensitivity as compared to oxidized metals is observed. The next approach adds one or more graphene layers on top of the bare metal film. In this case, the performance depends on the number of graphene layers, but improvement in sensor characteristics in the DUV is also obtained. The use of Au or graphene overlayers increases the refractive index sensing dynamic range, which can be significant for In with these overlayers under certain operating conditions.
On-chip high-efficiency wavelength multicasting of PAM3/PAM4 signals using low-loss AlGaAs-on-insulator nanowaveguides
Authors: Qin Jun , Shu Haowen , Chang Lin , Xie Weiqiang , Tao Yuansheng , Jin Ming , Wang Xingjun , Bowers John E.
Published: July 2020

Nonlinear optics-based optical signal processing (OSP) could potentially increase network flexibility because of its transparency, tunability, and large bandwidth. A low-loss, high nonlinearity, and compact integrated material platform is always the pursuit of OSP. In this Letter, a high-efficiency, one-to-six wavelength multicasting of 10 Gbaud pulse-amplitude modulation (PAM3/PAM4) signals using a 6 cm long

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l

0.2

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a

0.8

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-on-insulator nanowaveguide is experimentally demonstrated for the first time, to the best of our knowledge. The low-loss, combined with the high nonlinear coefficient of the AlGaAsOI platform, enables us to achieve

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average conversion efficiency clear eye diagrams and

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power penalty at KP4-forward error correction threshold (

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) for all the output PAM3/PAM4 multicasting channels. This result points to a new generation of nonlinear OSP photonic integrated circuits.
Single-photon computational 3D imaging at 45  km
Authors: Li Zheng-Ping , Huang Xin , Cao Yuan , Wang Bin , Li Yu-Huai , Jin Weijie , Yu Chao , Zhang Jun , Zhang Qiang , Peng Cheng-Zhi , Xu Feihu , Pan Jian-Wei
Published: July 2020

Single-photon light detection and ranging (lidar) offers single-photon sensitivity and picosecond timing resolution, which is desirable for high-precision three-dimensional (3D) imaging over long distances. Despite important progress, further extending the imaging range presents enormous challenges because only a few echo photons return and are mixed with strong noise. Here, we tackled these challenges by constructing a high-efficiency, low-noise coaxial single-photon lidar system and developing a long-range-tailored computational algorithm that provides high photon efficiency and good noise tolerance. Using this technique, we experimentally demonstrated active single-photon 3D imaging at a distance of up to 45 km in an urban environment, with a low return-signal level of

∼
1

photon per pixel. Our system is feasible for imaging at a few hundreds of kilometers by refining the setup, and thus represents a step towards low-power and high-resolution lidar over extra-long ranges.
¿Aprender con robótica en Educación Primaria? Un medio de estimular el pensamiento computacional
Authors: Caballero-González Yen Air , García-Valcárcel Ana
Published: July 2020

La tecnología ha transformado el escenario social incorporando estrategias, técnicas y métodos para obtener procesos educativos más significativos. Una de las principales iniciativas que se promueve es el fortalecimiento de habilidades y competencias sobre programación y pensamiento computacional. Este artículo evidencia el efecto de un programa formativo utilizando robótica educativa en la adquisición de habilidades de pensamiento computacional y programación en niños de corta edad. El diseño de la investigación es de tipo cuasi-experimental, con medidas pretest y postest, con grupo experimental y control. La muestra la integran 46 estudiantes del primer curso de Educación Primaria, con edades entre 6 y 7 años, pertenecientes a un centro educativo español. El pensamiento computacional se mide a través de las dimensiones: pensamiento algorítmico-secuencias, abstracción-patrones y depuración. Las actividades de aprendizaje utilizadas en las sesiones de intervención fueron una adaptación de las acciones formativas propuestas en el programa de estudio en robótica “TangibleK”. Los resultados obtenidos muestran efectos positivos en relación con el desempeño alcanzado por los participantes en las actividades desarrolladas. Lo que manifiesta un efecto significativo en el fortalecimiento de habilidades vinculadas al pensamiento computacional. Las diferencias encontradas entre las medidas pretest y postest del grupo experimental son estadísticamente significativas y superiores a las que presenta el grupo control. De esta forma se concluye que los participantes del programa formativo en robótica y programación obtienen un mayor avance en las tres dimensiones de la competencia computacional explorada.
Aprender la Física a través de anotaciones de vídeos en línea
Authors: Marçal J. , Borges M. M. , Viana P. , Carvalho P.
Published: July 2020

El soporte de vídeo en el ambiente de aprendizaje se usa hoy en día para muchos fines, ya sea para demostración, investigaciones o para compartir. Está pensado para reforzar el espacio antes y después de la clase e introducir una nueva dinámica e interacción en el aula. La innovación pedagógica puede lograrse mediante diferentes enfoques para motivar a los estudiantes y obtener mejores resultados. El contenido didáctico audiovisual se ha difundido en los últimos años en el dominio de Física, principalmente a través de la plataforma de YouTube. Muchos aspectos de las actividades de producción de vídeo pueden aumentar la autoestima de los estudiantes, aumentar su satisfacción con la experiencia de aprendizaje, promover una actitud positiva hacia la materia, proporcionar a los estudiantes un nivel de comprensión inferior con una amplia tutoría individual, alentar a los estudiantes a discutir entre ellos, intercambiar sus opiniones, y comparar los resultados de las actividades de laboratorio. Por otro lado, el vídeo puede apoyar las actividades de investigación, ofreciendo al investigador acceso a una agregación de datos rica para investigar los procesos de aprendizaje. Este documento presenta una revisión de la literatura sobre el potencial del uso de la anotación de vídeo en el contexto educativo y las perspectivas del uso de los maestros de los sistemas de anotación colaborativa, para promover la reflexión, específicamente en el dominio de la Física, utilizando una herramienta de anotación de código abierto. Se analiza la creación de referencias audiovisuales, ya sea para el acceso rápido a partes del contenido de video anotado organizado por el profesor, la creación de conocimientos o la revisión por y para otros estudiantes. Este estudio se complementa con un banco de pruebas, que muestra el potencial de usar contenido audiovisual anotado dentro de un contexto k-12. Se invitó a los estudiantes a seleccionar contenido de vídeo, anotar, organizar y publicar las anotaciones, lo que podría apoyar el proceso de aprendizaje en el dominio de la física. Los resultados muestran que la mayoría de los aspectos bajo análisis recibieron una evaluación positiva y los estudiantes expresaron un beneficio de las conferencias orales y el acceso a nuevas fuentes de aprendizaje. La única excepción se relaciona con la capacidad del enfoque de los estudiantes motivados para estudiar Física, ya que la mayoría de los estudiantes no vieron esta metodología demasiado motivadora. El impacto de esta investigación se relaciona con métodos alternativos de enseñanza / aprendizaje dentro del dominio de la Física, utilizando la anotación de vídeo en línea en apoyo de las metodologías tradicionales de exposición y memorización.
Is Sugar the New Tobacco? Sugar in New Era: Yin or Yang
Authors: Saxena Arpita
Published: July 2020

Dental caries is a prevalent non-communicable chronic disease worldwide. It is a diet dependent bacterial disease. Excessive consumption of sucrose always supports the growth of S. mutans at a high frequency and with no/little oral hygiene, it leads to caries supported environment. Eating patterns and food choices are vital to people for the betterment of oral health as well as proper body growth. Over-consumption of sugar dense edibles if often compared to drug addiction. In fact, sugar is as or more addictive than cocaine.

Prevalence of dental caries is directly proportional to the form and frequency in which sugar is consumed. By form, it means to solid, liquid, or sticky consistency. No doubt that sticky consistency is more harmful than the remaining because it adheres to the tooth surface and does not go off easily. The overall aim of the poster is to give readers an insight into the role of sugar and its consequences.
Binding experience-relevant neuronal assemblies through disinhibition
Authors: Garcia-Hernandez Raquel , Caramés José María , Pérez-Montoyo Elena , Canals Santiago
Published: July 2020

Granule cells in the dentate gyrus (DGgc), a brain region important for spatial learning, are part of the engrams formed when an animal explores a new context. Previous work showed that modulation of DGgc activity by perisomatic inhibition bidirectionally regulates memory encoding. Whether this result is due to a differential recruitment of experience-relevant neuronal assemblies or the functional connectivity between them, is not yet known. We combined pharmacogenetic tools (DREADDs) to increase or decrease the activity of parvalbumin (PV)-interneurons in DG while mice encoded spatial information in the Novel Object Location task (NOL). Sixty min after memory encoding in the NOL task animals were sacrificed and their brains processed and quantified for c-Fos staining. Exploration in the NOL task induced a robust increase in the number of c-Fos+ cells across hippocampal subfields. However, the number of c-Fos+ cells, both in the hippocampus and extra-hippocampal structures like the medial prefrontal cortex (mPFC) and the nucleus accumbens, was constant regardless of the inhibitory tone in the DG. Only a moderate increase in c-Fos intensity per cell in DGgc was found in the PV-cell inhibition group. In contrast, we found a significant increase in the correlation between the number of c-Fos+ cells in all quantified neuronal assemblies during PV-inhibition, and a decrease during activation. Together, these data reveal a critical regulatory role of perisomatic inhibition in the dentate gyrus in binding experience-relevant neuronal assemblies in memory.
Do planting methods and nitrogen management interfere with the economic viability of the melon crop?
Authors: Vendruscolo Eduardo Pradi , Bortolheiro Fernanda Pacheco de Almeida Prado , Martins Murilo Battistuzzi , Campos Luiz Fernandes Cardoso , Seleguini Alexsander , De Lima Sebastião Ferreira
Published: July 2020

Proper crop management results in higher profitability and the verification of economic viability is paramount to the definition of the methodologies used. This study aimed to verify the economic viability of seedlings or seeds use, associated with the inoculation with Azospirillum brasilense and nitrogen in topdressing fertilization in Cantaloupe melon production. The experiment was designed in randomized blocks with eight treatments. The treatments were composed of planting methods (seedling or seed), inoculation with Azospirillum brasilense (with or without), and partial application of 120 kg ha-1 of nitrogen as topdressing fertilization (with and without). It was verified that operations and seed acquisition represent the major cost factors. As for treatments, the use of seedling transplants with topdressing fertilization with nitrogen results in an increase of up to 37.01% in fruit production and, consequently, increases the indicators of economic viability. Also, A. brasilense, although not resulting in significantly higher production, raises the profitability. In this way, the seedling transplant, combined with the nitrogen in topdressing fertilization, results in higher profitability, and the use of A. brasilense is a technique with the potential for use in melon cultivation.
Determinants of CO2 Emissions in Emerging Markets: An Empirical Evidence from MINT Economies
Authors: Adebayo Tomiwa Sunday , Awosusi Ayobamiji Abraham , Adeshola Ibrahim
Published: July 2020

CO2 emission is one the major contributor to climate change that the top CO2 emitting countries are always trying to mitigate.  In an attempt to fill the gap in energy and environmental literature, this study explores the interaction between economic growth, energy usage, trade and urbanization on CO2 emission for MINT economies using the time coverage from 1980 to 2018, providing new perspectives into the literature by employing panel data analysis. Aiming to create robust outcomes, this paper deployed both conventional and modern econometric techniques. The panel co-integration test revealed evidence of the co-integration between CO2 and its determinants in the MINT economies. In order to explore the linkages between CO2 and its determinants, the ARDL PMG model was utilized in MINT economies. Findings based on the ARDL PMG reveals; (i) positive interconnection between CO2 emissions and energy usage; (ii) no significant link was found between CO2 and economic growth; (iii) urbanization influence CO2 positively while a negative link was found between CO2 and trade. Furthermore, the Dumitrescu-Hurlin Causality test revealed; (i) uni-directional causality from CO2 to urbanization; (ii) GDP growth cause CO2 while CO2 causes energy usage. Based on these findings, recommendations were put forward.
Karakter Anatomi Daun sebagai Bentuk Adaptasi Tumbuhan Penyusun Zonasi Mangrove di Banggai Kepulauan, Provinsi Sulawesi Tengah
Authors: Tihurua Eka Fatmawati , Agustiani Esthi Liani , Rahmawati Kusuma
Published: July 2020

Mangrove is an essential ecosystem that are located in the transition area of fresh and sea water. Therefore, species that grow are typical species that are able to adapt to the saline environment. The aim of this research is to characterize leaf anatomical structure for every species that compose the communities found in each mangrove zonations, including their similarities and dissimilarities characteristic. Sampling of examined leaf was carried out in the mangrove areas of Peling Island and Bakalan Island by making plots in four sites of the mangrove ecosystem area. Methods for leaf anatomical preparations were carried out using the paraffin-tert-butanol and paradermal sections. Anatomical characters as an adaptation to saline habitat are found in all species of mangrove plants, including thick cuticle and epidermal cells, thick leaves and water-storage tissue (hypodermis). In addition, there is found the presence of cork warts and sclereid as characteristic of the genus Rhizophora. Based on quantitative character observations, the mesophyll (palisade to sponge) ratio range from 0.28 ± 0.04 μm to 1.19 ± 0.42 μm, leaf thickness ratio 289,41 ± 38,21 μm to 695,20 ± 97,50 μm and the highest stomata density is owned by Lumnitzera littorea
Daerah Penangkapan Potensial Tuna Madidihang Thunnus albacares, Bonnaterre, 1788 (Teleostei:Scombridae) di Laut Seram
Authors: Paillin Jacobus Bunga , Matrutty Delly Dominggas Paulina , Siahainenia Stany Rachel , Tawari Ruslan Husen Saban , Haruna Haruna , Talahatu Putri
Published: July 2020

This research aims are to determine the potential fishing grounds of yellowfin tuna based on the approach of sea surface temperature, chlorophyll-a and catches in the Ceram Sea. Overall catches of 407 Individuals. In January the total catches were 66 individuals (14.44%), in February 67 individuals (14.66%), in March 84 individuals (18.38%), in April 116 individuals (25.38%) and in May 124 individuals (27.13%). The distribution of sea surface temperature and chlorophyll-a in the Ceram Sea in January-May 2019 looks varied. In January the average sea surface temperature was 29.13 oC, in February sea surface temperature was 29.54 oC, in March sea surface temperature was 30.12 oC, in April sea surface temperature was 30.12 oC, in May sea surface temperature was 29.77 oC. Chlorophyll-a concentration in January and February was 0.21 mg/m3, March was 0.20 mg/m3, April was 0.16 mg/m3, and May was 0.25 mg/m3. The results of the t-test analysis showed the P-value of sea surface temperature was 0.009<0.05, chlorophyll-a P-value 0.00048<0.05. Determination of potential fishing areas based on sea surface temperature, chlorophyll-a, and CPUE indicators shows that potential fishing areas are found in January, February, March, and May, while in April are in the medium potential category. Penelitian ini dilaksanakan dengan tujuan menentukan daerah penangkapan potensial Tuna madidihang berdasarkan pendekatan suhu permukaan laut, klorofil-a dan hasil tangkapan di Laut Seram.  Secara keseluruhan hasil tangkapan ikan tuna madidihang sebanyak 407 Individu. Bulan Januari total hasil tangkapan sebanyak 66 individu (14.44%), bulan Februari 67 individu (14.66%), bulan Maret 84 individu (18.38%), bulan April 116 individu (25.38%) dan bulan Mei 124 individu (27.13%). Sebaran suhu permukaan laut dan klorofil-a di Laut Seram pada bulan Januari-Mei 2019 terlihat bervariasi. Bulan Januari rata-rata suhu permukaan laut sebesar 29.13 oC, bulan Februari suhu permukaan laut 29.54 o, bulan Maret suhu permukaan laut 30.12 oC, bulan April suhu permukaan laut 30.12 oC, bulan Mei suhu permukaan laut 29.77 oC. Konsentrasi klorofil-a pada bulan Januari dan Februari sebesar 0.21 mg/m3, bulan Maret sebesar 0.20 mg/m3, bulan April sebesar 0.16 mg/m3, dan bulan Mei sebesar 0.25 mg/m3.  Hasil analisis uji t menunjukan nilai P-value suhu permukaan laut sebesar 0,009<0,05, klorofil-a P-value 0,00048<0,05. Penentuan daerah penangkapan ikan potensial berdasarkan indikator suhu permukaan laut, klorofil-a dan CPUE menunjukkan daerah penangkapan ikan potensial terdapat pada bulan Januari, Februari, Maret, dan Mei, sedangkan pada bulan April berada dalam kategori potensial sedang.
Preliminary Study of Polysaccharide and Oligosaccharide Alginate (AOS) as Prebiotic of Probiotic Bacteria
Authors: Yudiati Ervia , Subagiyo Subagiyo , Djarod Muhammad Salauddin Ramadhan
Published: July 2020

Synbiotics are related to pre and probiotic mixture which work synergically and provide the intestine microbial balance in organisms. This study aims to evaluate the potency of alginate polysaccharide and oligosaccharide (AOS) as prebiotic to probiotic bacteria originally from a commercial yogurt. Probiotic bacteria were plated to MRSA and incubated in 24 hrs. Over five isolated bacteria, three probiotic isolate bacteria were defined positively(C11; C14 and C15). The prebiotic test was done by culturing the isolate C14 to MRSB and incubated 24 hrs. After 24 hrs, all the MRSB liquid culture became turbid, showed a positive effect, except the MRSB culture without any alginate enrichment. Probiotic bacteria from MRSB were then plated into MRSA for Total Plate Count (TPC) test and incubated. TPS revealed that 0.1 mg/mL enriched AOS media resulted the highest number of probiotic bacteria (1.193 x 105 CFU/mL) compared to enriched AOS and 0.05 mg AOS/mL media (6 x 103 CFU/mL). These results have proven a high ability to develop AOS as prebiotic.
Key distinguishing characters (KDCs) of official (Boerhaavia diffusa L.) and commonly mistaken (Trianthema portulacastrum L.) sources of Mukkirattai of Siddha
Authors: Brindha S , Remya A , Divya K G , Rubeena M , Erni B , Murugammmal S , Shakila R , Sunil Kumar K N
Published: July 2020

Boerhaavia diffusa L. has been used extensively in Siddha system of medicine and is often confused with Trianthema portulacastrum L. due to morphological similarities. This particular study compares, analyses and identifies the key distinguishing features of the two whole plant drugs based on pharmacognostical and phytochemical aspects. The samples were studied for macroscopy, microscopy, physicochemical analysis, preliminary phytochemical analysis and HPTLC following standard procedures. Macroscopic studies showed few notable differences in macro-microscopy of root, stem, leaves and flowers of both the plants. Microscopically root, stem, leaf and petiole of both the plants showed differences in layers of cork, presence of crystals and medullary rays (in root), the thickness of cuticle, cortex and arrangement of vascular bundles (stem), presence of characteristic type of trichomes (leaf) and shape of the petiole. Powder microscopy showed differences in epidermis, crystal types and shape of pollen. Preliminary phytochemical analysis showed the presence of phenol, saponins and coumarins in B. diffusa and was not detected in T. portulacastrum. There were significant differences in the values of quantitative microscopy, physicochemical parameters and HPTLC of both the whole plant samples. The finding of this study will be helpful for the correct identification of the plant.
Irradiation Studies of LED Light Spectra on the Growth and Development of Potato (Solanum tuberosum L.)
Authors: Upadhyaya Chandrama Prakash , Pundir Robin Kumar , Pathak Abhishek , Joshi Neha , Bagri Deepak Singh
Published: July 2020

The study aimed to explore the impacts of distinctive qualities of the LED light (such as to low power consumption, lesser production costs, longer operational lifetime and cool light emission with specific monochromatic wavelength) on potato (Solanum tuberosum L.) growth and development including plant height, number of leaves, root length, fresh and dry weight etc. The accumulation of phyto-pigments, soluble proteins and sugars, free radical scavenging activity and overall tuber yield were also evaluated. Enhanced plant height with increased diameter and branching was observed with the plant growing under the B100 and R30B70 LED light combination. Similarly, total number of leaves, leaf surface area, health index, phyto-pigments and tuber yield of potato was also significantly increased as compared to the plant growing under the W100 as control. Soluble proteins and sugar content and free radical scavenging enzyme activity were also significantly enhanced in the R30B70 LED light combination. Tubers yield per plants were also enhanced under the RB combination of the LED light. The current study indicated that the combination of R and B LED lights proved better for plant growth and development in a controlled environment and the R30B70 is the best combinational spectra for increased growth and tuber yield of potato plants. Therefore, the precise management of the irradiance and wavelength may hold promise in maximizing the economic efficiency of potato production, and quality of this important vegetables grown in controlled environments.
Written corrective feedback, learner-internal cognitive processes, and the acquisition of regular past tense by Chinese L2 learners of English
Authors: Shao Jinshi , Liu Yongcan
Published: July 2020

This article reports on a mixed methods study that investigated the extent to which written corrective feedback (WCF) contributes to L2 learners’ acquisition of regular past tense in English and the cognitive processes that underpin the corrective feedback provided. The study adopted a pretest-posttest-delayed posttest design and involved 113 intermediate-level Chinese learners of English who were assigned to four conditions: indirect WCF, direct WCF, metalinguistic WCF, and control. A picture description task and a grammaticality judgement test were used to measure gains in the target structure. To explore how learners process feedback, nine learners, three from each treatment group, were selected to produce think aloud protocols. The study found that all three types of WCF had a positive effect on the picture description task, though none of them had a clear impact on the grammaticality judgement test. In addition, indirect WCF was found to have an advantage over direct and metalinguistic WCF on the delayed posttest, when compared to the control group. Think aloud data suggested that indirect WCF induced deeper cognitive processes than the other two kinds of feedback, which may account for the superiority of indirect WCF.
Language policy in the internationalisation of Higher Education in Anglophone countries: The interplay between language policy as ‘text’, ‘discourse’ and ‘practice’
Authors: Bonacina-Pugh Florence , Barakos Elisabeth , Chen Qi
Published: July 2020

In order to better compete in an increasing neoliberalised education system, many Higher Education Institutions (HEIs) have developed an internationalisation strategy that aims at incorporating an intercultural and global dimension into curricula and learning environments for all. This internationalisation agenda raises important language policy issues that are often side-lined in the UK and other Anglophone countries where an English monolingual ethos prevails. Centrally, the question arises indeed as to whether internationalisation processes have an impact on HEIs’ language policies in Anglophone countries. This paper takes the case of a Russell Group University in the UK and focuses on two masters programmes that attract annually a ‘multilingual elite’ (Barakos and Selleck 2019). It examines the institution’s language policy adopted at the levels of ‘texts’, ‘discourses’ and ‘practices’ (Bonacina-Pugh 2012), using a critical discourse analysis of policy documents and a conversation analysis of classroom interactions. We argue that language policy is at the core of HEIs’ internationalisation processes even in Anglophone countries and that, methodologically, the articulation of findings from critical discourse and conversational analyses represents a step forward in the field of language policy.