bluuebunny/crossref_metadata_2025 huggingface dataset:
The RPTRA Geographic Information System Application in Central Jakarta City Using the Dijkstra Algorithm Based on Android
Authors: Sugiharja Danur , Pahlevi Omar , Widyastuti Reni
Published: March 2019

Child Friendly Integrated Public Space or also known by the abbreviation RPTRA is the concept of public space in the form of green open spaces or parks that are equipped with various interesting games. Currently RPTRA is already widely available in all DKI Jakarta, especially in Central Jakarta, but there are still many people who do not know the location of the location of RPTRA. The dijkstra algorithm applied to this Android-based RPTRA geographic information system application in the City of Central Jakarta is to use google maps as a navigation map, where the Algorithm: {When users select the Map menu in the main menu, users will see maps and points of all RPTRA locations in Central Jakarta City, select one of the RPTRA location points, after the user selects one RPTRA location point, select the image on the right bottom route, then the user will go to google maps to get the route to the selected RPTRA. } The location of RPTRA directly takes coordinates at each RPTRA located in Central Jakarta City. The results achieved in testing the application went well able to provide accurate data on the location points of RPTRA in Central Jakarta.
Property Sales Data Processing Information System (SiPendar)
Authors: Suparni Suparni , Utami Lilyani Asri , Selviana Elsa Dwi
Published: March 2019

PT. Pratama Mega Konstruksindo is one of the companies engaged in Property, especially Housing. One of the fields that requires technological progress is one of them is the property sector, the rapid development in the property sector is currently urging property service companies to meet the demands of the wider community. Implementation of work related to housing sales. In managing the data, this company still uses a manual system, starting from the recording and calculation aspects so that its performance has not been effective. At PT Pratama Mega Konstruksindo this still manages data using Ms Excel. As well as down payment, cash payments and consumer data are recorded using Ms Excel. This can cause errors in recording transactions, data security that is not guaranteed confidentiality, ineffective employees at work because it requires more time to input and make sales reports and even loss of data. Therefore, PT. Pratama Mega Konstruksindo requires a system that can solve the problem. This data processing system is designed web-based using the PHP and MySql programming languages as data storage databases. With the existence of this website, it can help processing sales data more effectively and efficiently, reports can be printed in realtime and data security can be maintained
Light Control Design by Using Social Media Telegram Applications Based on Internet Of Things (IOT)
Authors: Candra Rudi Arif , Ilham Dirja Nur , Hardisal Hardisal , Sriwahyuni Sriwahyuni
Published: March 2019

Internet of things (IoT) is a concept with the aim of expanding the connectivity of  internet network connected to global networks. Internet of Things (IoT) is used to control electronic device that utilizes internet technology to perform control processes such as lamp. This study aims to build control device that utilizes internet technology to carry out the light control process by utilizing social media telegram applications. With NodeMCU V3 as a Digital controller that supports TCP / IP technology. The testing method is carried out using 4 lights and 4 channel relays. The results obtained by the testing process by using commands on the telegram have been successful, the delay time is very dependent on internet connectivity or Wifi.
PREDIKSI KEBANGKRUTAN MODEL SPRINGATE PADA INDUSTRI TELEKOMUNIKASI
Authors: Fifrianti Riani , Wahyu Santosa Perdana
Published: March 2019

This study purposes to analyze of corporate bankruptcy prediction of telecommunication industry in Indonesia with Springate model. The data used in the form of financial statements published by the telecommunications industry at Indonesia Stock Exchange for 2009-2013
period. The sampling technique of this study was determined by purposive sampling method for six samples from Indonesia Stock Exchange (IDX). The results using Springate model shows that two companies, PT Bakrie Telecom, Tbk and PT Smartfren, Tbk could potentially
bankrupt in the future and three companies For PT Indosat, Tbk, PT XL Axiata, Tbk and PT Inovisi Infracom, Tbk are classified have financial distress problem. The company that very good results is PT Telekom Indonesia, Tbk and categorized has no bankruptcy problem. In
general analysis telecommunication caompany have no good financial condition because business risk and financial risk are higher relatively than other industry.
HUBUNGAN LARANGAN MEROKOK DI RUMAH DENGAN KEBERHASILAN BERHENTI MEROKOK
Authors: Ramadhan Kadar
Published: March 2019

The Global Adult Tobacco Survey (GATS) in 2011 indicated that despite the intention of tobacco user to cease smoking, only a few people that succeed to stop the smoking habit. This research aimed to investigate correlation between smoking bans at home and smoking cessation. The GATS design was a cross-sectional study. Resident ≥ 15 y.o as the target population and as much as 8.305 respondents were recruited by stratified multistage cluster sampling (4 stages) and only 1.376 respondent who had tried to quit smoking were chosen as the sample and being analyzed. The dependent variable was the achievement of smoking cessation. The descriptive statistic was reported in weighted proportions. Logistic regression analysis and adjustment for confounders were applicated. Smoking bans at home increased the odds of smoking cessation achievement by 200 % (OR: 2,0; 95%CI 1,1-3,4) compared to the inexistence of such rule at home. As a conclusion, smoking bans at home was able to increase the smoking cessation achievement in the stop smoking program.
Pengaruh Aktivitas Fisik Terstruktur Terhadap Peningkatan Persentase Massa Otot Pada Anggota Sanggar Senam
Authors: Zahida Farah , Taufik Fatimah Eliana , Muchtar Diniwati
Published: March 2019

Health is very important in life. They are many ways for life healthy such as by doing structured physical activity. Physical activity has positive effect to prevent the decrement of muscle mass. Muscle mass is important for energy, performance and metabolism regulation. Therefore, the purpose of this study is to find out the effect of the structured physical activity with the increment of muscle mass percentage on member of gymnastics studio This study is used the one group pretest postest design. The population and the sample are the member of R and K gymnastic studio in Cempaka Putih and Johar Baru with 36 people. The samples are chosen by purposive sampling. The data are collected by measuring the respondent's body with Bioelectrical Impedance Analysis on the begining and the ending of this study. The data is analyzed with t-test used Wilcoxon method. Fourteen respondents (56%) from twenty-five have their muscle mass percentage increased with the p value 0,253. There are no significant effect within the strucured physical activity and the increase of muscle mass percentage on member of gymnastics studio.
Supplementary Materials: Checklist of Molluscs (Gastropoda and Bivalvia) of Malaysia Exclusive Economic Zone (EEZ) in Sarawak Waters
Authors: PONNUSAMI JAYASRI , AZIZ FAZIMAH
Published: March 2019

Most of the molluscs studies in Malaysia have focused only on their diversity and the knowledge on their relationship with the water depth are lacking. The hypothesis tested in this research was water depth influence the density of marine gastropods and bivalves of Malaysia Exclusive Economic Zone (EEZ) in Sarawak waters. The aim of the study was to determine the gastropod and bivalve species in Malaysia EEZ of Sarawak waters and the relationship of the species density with water depth. The sampling was conducted from 15th August 2015 until 9th October 2015. The gastropods and bivalves were collected from 32 stations of various depths using the Smith-McIntyre grab. The depth of the stations was from 20 m to 200 m. A total of 95 taxa (61 Gastropoda and 34 Bivalvia) were found in this study. The dominant molluscs species of Sarawak waters in Malaysia EEZ were Limopsis sp., Turitella cingulifera, Pitar citrinus, and Cavolinia globulosa. Species density was about 10 ind./m2 to 610 ind./m2 and the total density was between 250 ind./m2 (Station 22) and 1,940 ind./m2 (Station 2). The total density of gastropods and bivalves showed weak correlation and negative relationship with the depth of water. The findings of this study will aid future studies in Malaysia EEZ. 

Keywords: Bivalves, gastropods, Malaysia EEZ, Sarawak waters
AN EMPIRICAL ANALYSIS OF CONSUMPTION EXPENDITURE IN CHINA:A CASE STUDY OF CHANGCHUN CITY
Authors: Lu Wenliang , Lau Sim-Yee
Published: March 2019

This paper conducted a case study on Changchun—a city with 7.6 million populations located in the northeastern part of China—that analyzes consumer behavior in China. The empirical analysis is based on the AIDS model propounded by Deaton and Muellbauer (1980). The data used in this econometric analysis is a time series cross sectional panel data from 300-household survey responses collected from January 2009 to December 2011. The empirical results show that “food” and “education, culture and recreation” are necessity goods for the people in Changchun. These two items cover 44% of total expenditure share in the data set. At the same time, these two items are Giffen goods because their expenditure share increases even with rise in their prices. The findings suggest that “housing” is a luxury good but it is also a Giffen good. From this point, it is plausible to argue that the growth of real income across China in general and in Changchun in particular has been lagging behind the rise in prices of “housing”. Additionally the estimated own-price elasticity of demand in “education, culture and recreation” suggests that people in Changchun will spend more on these items in order to acquire a higher quality of education despite price increases. The estimated compensated cross-price elasticity of demand of various pairs of goods like “food and housing,” “food and education, culture and recreation,” “clothing and housing,” “clothing and medical” and others indicate that the theoretical assumption of a diminishing MRS does not hold for our data set. The analytical results show that people’s demand in “medical” is not being influenced by its price and people’s disposable income.Keywords: AIDS; Income Elasticity Of Demand; Cross-Price Elasticity Of Demand; Compensated Cross-Price Elasticity Of Demand; Net Substitute Goods; Net Complement Goods.
Blue Nile Flower Rituals from the Perspective of Transpersonal Psychology - The Role of Nuciferine and its Putative Value as an Antipsychotic Drug
Authors: Keppel Hesselink Jan M
Published: March 2019

Pharmaco- or psycho-active compounds in traditional medicines or in plants used during neoshamanic rituals can sometimes lead to the (re-) discovery of new drugs for chronic pain, anxiety, depression or schizophrenia. Neoshamanic rituals fulfill the needs for healing and transformation of a number of people, who are partly dissatisfied with the absence of certain healing aspects in western medicine. A recent neoshamanic ritual is based on the administration of a resin from the Blue Nile Flower (Nymphaea caerulea), also referred to as Blue Lotus or Sacred Blue Lily of the Nile). This extract contains a number of alkaloids such as aporphine and nuciferine, although the quality of commercial available extracts is highly variable. We will discuss the biological effects of nuciferine, a compound which may be of value for the treatment of psychiatric disorders, and discuss the use of Blue Nile Flower in rituals from a transpersonal psychological perspective. Nuciferine has an enriched pharmacological profile, with affinities for a number of serotonergic and dopaminergic receptors. Nuciferine and its derivatives might lead to a new family of atypical antipsychotic compounds. Furthermore, a recent identified mechanism of action related to its anti-inflammatory activity, suggest this molecule might also play a role in the treatment of depression and posttraumatic stress disorder.
Treatment Of Multiple Adjacent Recession Defects With Zucchelli’s Modified Coronally Advanced Flap With And Without Adjunctive Use Of Platelet Rich Fibrin: A Case Report
Authors: Prashar Pallavi , . Vandana , Kaur Surpreet , Kapoor Surbhi , Kaur Karandeep
Published: March 2019

When there are multiple recession defects affecting adjacent teeth, patient related considerations suggest the selection of the surgical techniques that allow simultaneous correction of all gingival defects with soft tissue close to the defects themselves. The present case report highlights the effectiveness of Zucchelli’s modified coronally advanced flap with envelope technique along with use of Platelet Rich Fibrin for the treatment of multiple recession defects in patients with aesthetics demands.

Key Words
Gingival recession, Zucchelli’s modified coronally advance flap, platelet rich fibrin, root coverage
Hemisection an Alternative to Extraction - Practice Management
Authors: Patil Chitra , Gaikwad Rajesh , Attar Nilofar
Published: March 2019

The recent advances in healthcare services have increased our life expectancy and so is true of the periodontally involved tooth. The tooth affected by severe periodontitis with furcation involvement can be treated by procedures such as root resection or hemisection. Hemisection is surgical removal of root with associated part of the crown. Splitting of tooth with two roots into separate parts is called as bicuspidisation. The root and corresponding crown can then be restored to function by fabrication of prosthesis. Endodontic therapy should be performed prior to the hemisection procedure. It is frequently performed with mandibular 1st molar. We report the case of hemisection of right mandibular molar followed by restoration of its function with the help of fixed partial denture. Key-words: hemisection , molar tooth, periodontal involvement, endodontically treated
Interferon – Gamma in Health and Disease
Authors: JanakiRamya Namburu , Chandrashekar Poosarla , Reddy Baddam Venkat Ramana
Published: March 2019

Interferon-gamma is immunoregulatory cytokine with a vast complexity of functions. Both progressive and suppressive properties of this cytokine class are being evaluated in past decades. The exact prognostic effects of this moiety are being looked at, in the past few years. Based on the physiological significance, the activity from an allergic disease to cancer immunotherapy is being perused all over the world. There is a crucial role of interferon –gamma in CD4- T helper-1 differentiation, activation of interleukins, immunoglobulins and activation of defence cells. Recent years of research has led to unfold the effect of interferon –gamma to the level of improvising the function of stem cells even in dental pulp and reversal of tumorigenic cells. Key words: interferon-gamma, CD4 , immunomodulotor, cancer
SOCIOHUMANITARIAN HABITUS OF HOMO ECONOMICUS: ECONOMIC EDUCATION IN THE MODERN UKRAINIAN SOCIETY
Authors: Petinova Oksana
Published: March 2019

The article presents a socio-philosophical analysis of economic education as a sociohumanitarian habitus of homo economicus in in the transformational processes of modern Ukrainian society. The article argues that in today's conditions economic education is a strategic resource for improving people's well-being, ensuring national interests, strengthening the authority and competitiveness of the state. The author concludes that a highly educated new economical person is a challenge of time.
Preparación del Docente en la era digital
Authors: Salazar Veloz Tanya Maritza
Published: March 2019

En la actualidad las tendencias de la formación y desempeño del docente se enfrentan a una sociedad que demanda una modalidad diferente de educación; por lo que se debe mejorar y evaluar las políticas de inclusión, cohesión social en poblaciones distantes a la práctica escolar; responder a las exigencias que se vive como el acceso a la televisión digital, adquirir computadoras donde la población se anexa al mundo digital, por lo que las aulas no podían quedar atrás en introducir las TICs para mejorar el aprendizaje y los conocimientos. Desde esta perspectiva se presentó una valoración de la Preparación del Docente en la era digital. El objetivo de este artículo fue referir sobre la preparación del docente en las estrategias metodológicas y didácticas relacionadas a los procesos de enseñanza aprendizaje con las TICs. El contenido del artículo formó parte de una sistematización de las publicaciones que al respecto se han realizado a nivel nacional e internacional. Se partió la dimensión pedagógica – cognitiva, la inserción de las TIC en los contextos educativos, las características de la nueva generación de estudiantes, las condiciones que propone la UNESCO, para aprovechar de manera efectiva en la educación el poder las tecnologías de la información y comunicación, y por último una propuesta de estándares que se construyó a partir de la experiencia nacional e internacional. Se emplearon métodos teóricos como el análisis y la síntesis, de lo abstracto a lo concreto y el histórico lógico, que permitieron realizar la valoración de la Preparación del Docente en la era digital.
Viabilidad del uso de tubérculos como materia prima para la elaboración de galletas
Authors: Pantoja Rodríguez Janet Patricia , Avilés Flor Teresa Yolanda , Vera Gutiérrez Sidia
Published: March 2019

Esta investigación trató la viabilidad de la elaboración de galletas enriquecidas con tubérculos como la remolacha y zanahoria blanca como nutrí-alimento, por su combinación de fibra, antioxidantes y vitaminas. En la época actual la mayoría de los ciudadanos tienen un ritmo acelerado de vida que los expone al descuido en su alimentación, la ingesta de comida no saludable da paso a un desbalance nutricional que afecta el buen funcionamiento del organismo humano ocasionando enfermedades y sobrepeso. En Ecuador, la industria alimentaria junto con el Ministerio de Salud brinda opciones nutritivas y listas de productos para consumir a través de la semaforización nutricional. La investigación fue de tipo bibliográfica-documental se recopiló información acerca de los tubérculos elegidos como materia prima y su procesamiento, las propiedades físico químicas y los análisis que determinan su calidad. Se aplicó un estudio de campo para explorar la percepción de los encuestados, identificando hechos reales sobre la deficiencia nutritiva que aqueja la población. El diagnóstico realizado determinó el alto impacto que la galleta tendrá en el mercado aprovechando las propiedades nutricionales, influyendo de manera favorable en la calidad alimentaria; se evidenció la idoneidad de esta materia prima por su contribución de macronutrientes, sabor, olor, y textura
Relación entre ambición política y producción legislativa: Ecuador 1979- 2010
Authors: Arévalo María Inés
Published: March 2019

Esta ponencia discutió  los factores que afectan la producción legislativa. Se constituye en uno de los primeros aportes que discute la relación entre la ambición política y la producción legislativa en Ecuador. Este tema surge de teorías clásicas de ambición política y conexión electoral, asumiendo que las personas que se interesan en conservar su curul dentro de la legislatura son aquellos que presentan proyectos de ley de mayor alcance y calidad. Se trata de un trabajo descriptivo con una metodología cuantitativa trabajada a través de datos originales que recogen los proyectos de ley presentados por cada legislador, desde el año 1979 hasta el año 2010. Los resultados obtenidos demuestran que la ambición política sí condiciona la producción legislativa, siendo los políticos con carrera legislativa los que promueven leyes y reformas de interés nacional mientras que los de carrera regresiva priorizan leyes de impacto local.
La lectura: una acción pedagógica para el desarrollo de la oralidad en los estudiantes que cursan la carrera de Derecho
Authors: Cuenca Díaz Maritza
Published: March 2019

El artículo tuvo como premisa la concepción de la comunicación como un proceso que integra los procesos de comprensión y construcción de textos, en tal sentido se consideró a la lectura como una acción pedagógica de valor para contribuir al desarrollo de la oralidad en los estudiantes de la carrera de derecho. Se presentaron los resultados de una intervención pedagógica mediante un pre-experimento desarrollado en la Universidad Autónoma Regional de los Andes, que demostró la efectividad de un taller, cuyo proceder metodológico se sustentó en lograr el creciente desarrollo de la comprensión lectora, mediante la toma de conciencia de las estrategias utilizadas para captar el significado del texto, tomando en cuenta la motivación para el desarrollo de la actividad, y los diferentes tipos de análisis textual, de igual modo, se diseñaron acciones que prepararan el proceso de lectura y que condicionan su eficiente ejecución , así como otras que una vez culminado este proceso permitieran comprobar el nivel de comprensión, y por tanto la posibilidad de construir textos orales a partir de la lectura. La comparación de los resultados del diagnóstico inicial del desarrollo de la competencia comunicativa oral, con los obtenidos en el diagnóstico final evidencia el valor de la lectura comprensiva para el perfeccionamiento de la oralidad.
Bretton Woods el Inicio de la Dependencia Económica y Desempleo en el Ecuador
Authors: Chico Frias Angel Enrique , Vásconez Fuentes José Luis
Published: March 2019

En esta investigación se analizó los fundamentos legales, económicos y filosóficos por los que la Republica “soberana” del Ecuador formo parte de los acuerdos monetarios y económicos firmados en Bretton Woods en 1944, en donde se diseño un orden económico internacional basado en la creación de tres organismos para solucionar conflictos monetarios, comerciales y de desarrollo. Para el desarrollo del presente estudio se utilizó la ley de Okun con el cual se calculó las tasas de desempleo. Además se abordó el posible escenario que podría vivir el país en un caso de no haber aceptado las imposiciones de los organismos multilaterales, las cuales se reflejarían en una tasa de desempleo similar a países desarrollados acompañadas con incrementos en la producción real. Como conclusiones se presentó la idea que el balance mundial pudo  haber sido diferente causando una distribución más equitativa de los recursos encontrándose que el país vive escenarios de desempleo programados.
Communications for Peacebuilding: Conflict Resolution Skills and Strategies of Lupon Tagapamayapa in Selected Communities of Sarangani Province
Authors: Jumalon Julnes U. , Pelima Russtum G. , Caday Kloyde A.
Published: March 2019

The Lupon Tagapamayapa (LT) of the two barangays in Sarangani Province- Barangay Baliton in Glan and Barangay Upo in Maitum- were studied as to the skills and strategies they employ in resolving petty conflicts as a means of communication towards building peace in the community. Using qualitative-content analysis, multiple sources of data were used namely FGD, KII, Venn Diagram and Observation with video and note taking. It was found out that the LTs of both barangays Baliton (mostly populated by Blaan indigenous people) and Upo (with the Tboli natives)—applied similar processes and procedures in resolving conflicts prescribed by the Local Government Code such as: Greetings and Introduction, Conflict Settlement Proper and The Settlement and Resolution. On language use and communication skills, both LTs demonstrated competence both in verbal and non-verbal communications. In verbal communication, the LT used carefully chosen words, aphorism, rhetorical question and analogy; while in non-verbal communication, the LT regulated the tone and volume of the voice, used appropriate hand gestures and eye contact. Further, the LT employed strategies such as collaboration, compromise, spiritual advice, and active listening. Land conflict is the most common case resolved by the LT. This is followed by debts and assault. Misunderstanding and differences in principles and value judgment are the most common factors that cause conflicts in the community. Aside from these, jealousy, theft, selfishness, vices, and broken relationships were also identified. The study also revealed factors that could hinder or facilitate the conflict resolution, which were differing goals and levels of compromise and frustration. With the personal, interpersonal, cultural, and structural changes among the members of the LT, the study recommends further research on the competence of LT among remote communities and or other indigenous groups in Mindanao for a broader and more enhanced justice system in the barangays.

Read full article here.
PERSONAL AND COLLECTIVE TRANS-MYTHOLOGIES: CREATIVE ATTITUDES TO GENDER INCONGRUENCE AMONG TRANSGENDER INDIVIDUALS
Authors: Kłonkowska Anna Maria , Bonvissuto Stephanie
Published: March 2019

Embedded within the biographies of some transgender people are narratives elements more frequently found in culturally-specific legends settings and the interplay of mythological figures. Individuals who specifically identify as transsexuals (unlike other, non-binary or gender-queer transgender people) sometimes report the wish, the dream, and/or the desire to understand or alleviate their experienced gender incongruence in a surprisingly creative way: through some type of magical transformation. Calling upon recently collected interviews, this study examines those narratives and their use of such elements, noting their reliance on binary gender formations. Through philosophical and cultural-anthropological analyses, we suggest that these fields grant powerful and imaginative personal allowances, opportunities and perceptions to transsexual identifying transgender individuals – magical transformations and justified transpositions to alleviate dysphoria, a surrender of personal responsibility to unseen universal forces, and especially an inherent wisdom gifted during transitional liminality – that neither scientific nor academic evaluations of gender transition can. While these creative allowances are fictive, fantastical, and temporary, they nevertheless articulate a need if not an imperative for understanding, expression and ultimately action on behalf of the transitioning individual.
COMPARATIVE ANALYSIS OF THE BUCKLING FACTOR OF THE STEEL ARCH BRIDGES
Authors: Žilėnaitė Sigutė
Published: March 2019

The dominant axial compressive force makes the arches become extremely sensitive to the loss of stability. Their stability analysis was first initiated in the late 20th century. The first stability research of single arches was carried out inplane at the elastic stage of the arches. Later the behaviour of arches in the elastic-plastic stage, the initial stresses and geometric imperfections before the arch buckles were also assessed, the effective length of the arches and the out-of-the-plane arch strength conditions were being identified as well as the effect of the temperature on the stability of the arch. The expression of the critical force of the arches connected by vertical hangers with a chord and its dependant elements were defined by Petersen in the late 20th century. The design methodology for the formal design of arches connected by vertical hangers with a stiffening girder is presented in Annex D of the Eurocode 1993-2. Nevertheless, the area of application and the main assumptions are not defined. The first part of the comparative analysis identifies the assumptions for arch bridge modelling under which the buckling factor β dependence curves in Figure D.4 of Annex D to Eurocode 1993-2 can be applied. In the second part a comparison of the the normative βEC factor value and the one established by the numerical experiment with the increase in the number of hangers and change in the hanger network form is presented.
Carbon Abundance Inhomogeneities and Deep Mixing Rates in Galactic Globular Clusters
Authors: Gerber Jeffrey M. , Briley Michael M. , Smith Graeme H.
Published: March 2019

Among stars in Galactic globular clusters the carbon abundance tends to decrease with increasing luminosity on the upper red giant branch, particularly within the lowest metallicity clusters. While such a phenomena is not predicted by canonical models of stellar interiors and evolution, it is widely held to be the result of some extra mixing operating during red giant branch ascent which transports material exposed to the CN(O)-cycle across the radiative zone in the stellar interior and into the base of the convective envelope, whereupon it is brought rapidly to the stellar surface. Here we present measurements of [C/Fe] abundances among 67 red giants in 19 globular clusters within the Milky Way. Building on the work of Martell et al., we have concentrated on giants with absolute magnitudes of M
V ∼ −1.5 within clusters encompassing a range of metallicity (−2.4 < [Fe/H] < −0.3). The Kitt Peak National Observatory (KPNO) 4 m and Southern Astrophysical Research (SOAR) 4.1 m telescopes were used to obtain spectra covering the λ4300 CH and λ3883 CN bands. The CH absorption features in these spectra have been analyzed via synthetic spectra in order to obtain [C/Fe] abundances. These abundances and the luminosities of the observed stars were used to infer the rate at which C abundances change with time during upper red giant branch evolution (i.e., the mixing efficiency). By establishing rates over a range of metallicity, the dependence of deep mixing on metallicity is explored. We find that the inferred carbon depletion rate decreases as a function of metallicity, although our results are dependent on the initial [C/Fe] composition assumed for each star.
Hints for a Turnover at the Snow Line in the Giant Planet Occurrence Rate
Authors: Fernandes Rachel B. , Mulders Gijs D. , Pascucci Ilaria , Mordasini Christoph , Emsenhuber Alexandre
Published: March 2019

The orbital distribution of giant planets is crucial for understanding how terrestrial planets form and predicting yields of exoplanet surveys. Here, we derive giant planets occurrence rates as a function of orbital period by taking into account the detection efficiency of the Kepler and radial velocity (RV) surveys. The giant planet occurrence rates for Kepler and RV show the same rising trend with increasing distance from the star. We identify a break in the RV giant planet distribution between ∼2 and 3 au—close to the location of the snow line in the solar system—after which the occurrence rate decreases with distance from the star. Extrapolating a broken power-law distribution to larger semimajor axes, we find good agreement with the ∼1% planet occurrence rates from direct imaging surveys. Assuming a symmetric power law, we also estimate that the occurrence of giant planets between 0.1 and 100 au is

for planets with masses 0.1–20 M
J and decreases to

for planets more massive than Jupiter. This implies that only a fraction of the structures detected in disks around young stars can be attributed to giant planets. Various planet population synthesis models show good agreement with the observed distribution, and we show how a quantitative comparison between model and data can be used to constrain planet formation and migration mechanisms.
High-energy Emission from Interacting Supernovae: New Constraints on Cosmic-Ray Acceleration in Dense Circumstellar Environments
Authors: Murase Kohta , Franckowiak Anna , Maeda Keiichi , Margutti Raffaella , Beacom John F.
Published: March 2019

Supernovae (SNe) with strong interactions with circumstellar material (CSM) are promising candidate sources of high-energy neutrinos and gamma-rays and have been suggested as an important contributor to Galactic cosmic rays (CRs) beyond 1015 eV. Taking into account the shock dissipation by a fast velocity component of SN ejecta, we present comprehensive calculations of the nonthermal emission from SNe powered by shock interactions with a dense wind or CSM. Remarkably, we consider electromagnetic cascades in the radiation zone and subsequent attenuation in the pre-shock CSM. A new time-dependent phenomenological prescription provided by this work enables us to calculate gamma-ray, hard X-ray, radio, and neutrino signals, which originate from CRs accelerated by the diffusive shock acceleration (DSA) mechanism. We apply our results to Type IIn SN 2010jl and Type Ib/IIn SN 2014C, for which the model parameters can be determined from the multiwavelength data. For SN 2010jl, the more promising case, by using the the latest Fermi Large Area Telescope Pass 8 data release, we derive new constraints on the CR energy fraction, ϵ

p
 ≲ 0.05–0.1. We also find that the late-time radio data of these interacting SNe are consistent with our model. Further multimessenger and multiwavelength observations of nearby interacting SNe should give us new insights into the DSA in dense environments, as well as pre-SN mass-loss mechanisms.
AstroSat-CZTI Detection of Variable Prompt Emission Polarization in GRB 171010A
Authors: Chand Vikas , Chattopadhyay Tanmoy , Oganesyan Gor , Rao A. R. , Vadawale Santosh V. , Bhattacharya Dipankar , Bhalerao V. B. , Misra Kuntal
Published: March 2019

We present a spectropolarimetric analysis of GRB 171010A using data from AstroSat, Fermi, and Swift to provide insights into the physical mechanisms of the prompt radiation and jet geometry. The prompt emission from GRB 171010A was very bright (fluence >10−4 erg cm−2) and had a complex structure that was composed of the superimposition of several pulses. The energy spectra deviate from the typical Band function to show a low-energy peak ∼15 keV, which we interpret as a power law with two breaks, with a synchrotron origin. Alternatively, the prompt spectra can also be interpreted as Comptonized emission, or a blackbody combined with a Band function. A time-resolved analysis confirms the presence of the low-energy component, while the peak energy is found to be confined in the range of 100–200 keV. The afterglow emission detected by Fermi-LAT is typical of an external shock model, and we constrain the initial Lorentz factor using the peak time of the emission. Swift-XRT measurements of the afterglow show an indication for a jet break, allowing us to constrain the jet opening angle to <6°. The detection of a large number of Compton-scattered events by AstroSat-CZTI provides an opportunity to study the hard X-ray polarization of the prompt emission. We find that the burst has a high time-variable polarization, and the emission has a higher polarization at energies above the peak energy. We discuss all observations in the context of GRB models and polarization arising as a result of physical or geometric effects: synchrotron emission from multiple shocks with ordered or random magnetic fields, a jet dominated by Poynting flux that undergoes abrupt magnetic dissipation, subphotospheric dissipation, a jet consisting of fragmented fireballs, and the Comptonization model.
Contribution to the knowledge of fungal diversity of the Marmore Waterfalls (Umbria, central Italy)
Authors: Venanzoni Roberto , Bini Enrico , Bricchi Emma , Angelini Paola
Published: March 2019

A list of the macrofungi collected from the Marmore Waterfalls (Umbria, Italy) is reported. In particular, a list of basidiomycetes and ascomycetes collected over a period of about ten years was compiled. A total of 125 species belonging to 78 genera, 46 families, and 15 orders were identified. Forty-four species are recorded in Umbria for the first time. Marmore Waterfalls may represent an important area for the conservation of fungal diversity, due to the presence of 34 species matching those included in Red Lists of several European countries.
The effects of hypersalinity on the growth and skeletal anomalies of juvenile Cape stumpnose, Rhabdosargus holubi (Sparidae)
Authors: Kisten Yanasivan , Strydom Nadine A. , Perissinotto Renzo
Published: March 2019

Estuarine organisms are exposed to hypersaline conditions for prolonged periods during drought conditions and under severely restricted river flow resulting from freshwater abstraction and impoundments. Consequently, marine estuarine-dependent fish such as Rhabdosargus holubi may be subjected to extreme conditions, such as hypersalinity prevailing for long periods ( > 2 months). Hypersalinity may impact the energetic demands of fish due to osmoregulation leading to compromised growth. This study assessed the impact of high salinity on the growth and skeletal development of R. holubi juveniles. Skeletons of juveniles grown at different salinities in the wild and in aquaria were analysed for anomalies. The impact of hypersaline conditions on juvenile R. holubi growth was also determined in aquaria. Aquarium experiments indicated that hypersalinity of 50 did not significantly impact growth rates over two months. Overall, anomalies were rare and vertebral-related anomalies specifically did not differ significantly between salinities. However, fin rays were significantly impacted in fish growing at higher salinities in the wild. It was concluded that the strong osmoregulatory ability of R. holubi offers protection against hypersalinity affecting internal structures, but external structures may remain vulnerable. As such, from a locomotory standpoint, R. holubi may be vulnerable to long periods of exposure to hypersaline conditions.
La comédie de destruction
Authors: Michaud Philippe-Alain
Published: March 2019

Celui qui rit du comique s’empêche d’en comprendre la véritable nature, remarquait Aby Warburg lorsqu’il évoquait, dans sa conférence sur le rituel du serpent, l’irruption des clowns au milieu des danseurs katchinas à laquelle il avait assisté lors de son séjour en territoire Hopi durant l’hiver 1896. Parce qu’il reste confiné dans le registre de la culture populaire, le burlesque cinématographique des premiers temps échappe encore aux conventions sentimentales et morales qui viendront en édulcorer la force au cours des années 1920. Brutal, violent, improvisé, il recueille les principes d’une poétique négative animée par une dynamique de destruction qui affecte à la fois les figures et les éléments de la composition. La comédie n’est pas l’autre de la tragédie : elle en révèle le sens. À la manière du satyre nietzschéen s’avançant sur la scène tragique, l’acteur comique révèle au spectateur, dans un éclat de rire, la profondeur de « l’effroyable nuit » et la nullité du principe d’individuation.
Phytochemical screening, antimicrobial and antioxidant studies of Lannea egregia Engl. and K. Krause (Anacardiaceae) stem bark
Authors: Rafiu Basirat O. , Sonibare Adeola M. , Adesanya Enitan O.
Published: March 2019

Background: A substantial number of drugs are being developed from plants for the treatment of various diseases. Lannea egregia (LE) is a woody perennial plant used traditionally in the management of skin disorders and wounds.Aim: To investigate the biological activities of different solvent extracts of LE bark.Settings: Fresh stem bark of Lannea egregia was collected from Itabo Lanlate, Oyo State, Nigeria. The authentication was done in Forest Herbarium, Ibadan (FHI), Nigeria. The biological activities of the air-dried sample were carried out in the Department of Pharmacognosy, University of Ibadan, Nigeria.Materials and methods: Powdered LE bark sample was extracted by gradient extraction. Phytochemical screening was performed on the extracts using standard procedure. In vitro antimicrobial study was performed on 14 strains of bacteria and 5 fungal strains at a concentration range of 25, 50, 75 and 100 mg/mL of the extract using ciprofloxacin and itraconazole as standard. The minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC) and minimum fungicidal concentration (MFC) were determined. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity and total phenolic content (TPC) of two active extracts were determined spectrophotometrically.Results: The phytochemical screening of LE revealed the presence of tannins, terpenoids, flavonoids, anthraquinones, saponins and alkaloids. The dichloromethane (DCM) extract exhibited the highest activity against all the bacterial strains as well as four of the fungal strains. The zones of inhibition (ZI) of bacteria ranged from 9.0 ± 2.0 to 24.6 ± 2.4 mm, MIC of 0.0008 to 12.5 mg/mL and MBC of 25 to 75 mg/mL, while ZI of the fungal strains ranged from 10.3 ± 4.6 to 18.0 ± 5.3 mm, MIC 0.391 – 0.781 and MFC of 50 mg/mL in all the strains. The TPC values of DCM and ethyl acetate (EtOAc) extracts were 1582.47 ± 6.69 and 1579.89 ± 12.77 µg GAE/mg and inhibitory antioxidant activity of 2.54 ± 0.58 and 2.44 ± 0.54, respectively.Conclusion: These findings provide scientific evidence to support the ethnomedicinal use of Lannea egregia bark for treating skin disorders and wounds.
Aproximaciones estéticas en los medios sociales: Realidad aumentada, arte y snapchat
Authors: Urdaneta García Daniela De Jesús
Published: March 2019

La presente investigación pretende generar mediante un análisis documental y fenomenológico una aproximación estética que ayude a comprender las prácticas artísticas desarrolladas en Realidad Aumentada en el espacio público, específicamente en el proyecto Art Around You de Snapchat. Mediante la revisión de experiencias por parte de actores sociales y las posturas de expertos, se compararán las diferentes categorías estéticas existentes con el propósito de obtener los hallazgos necesarios para la construcción de la aproximación.
Editorial
Authors: Revista de Investigación en Artes Visuales ANIAV
Published: March 2019

Editorial del número 4 de la revista ANIAV, revista de Investigacióin en Artes Visuales, donde se resume la orientación de la revista y los artículos aceptados.
A machine learning based global sea-surface iodide distribution
Authors: Sherwen Tomás , Chance Rosie J. , Tinel Liselotte , Ellis Daniel , Evans Mat J. , Carpenter Lucy J.
Published: March 2019

Abstract. Iodide in the sea-surface plays an important role in the Earth system. It modulates the oxidising capacity of the troposphere and provides iodine to terrestrial ecosystems. However, our understanding of its distribution is limited due to a paucity of observations. Previous efforts to generate global distributions have generally fitted sea-surface iodide observations to relatively simple functions of sea-surface temperature (Chance et al., 2014; MacDonald et al., 2014). This approach fails to account for coastal influences and variation in the bio-geochemical environment. Here we use a machine learning regression approach (Random Forest Regression) to generate a high resolution (0.125° x 0.125°, ∼ 12.5 km), monthly dataset of present-day global sea-surface iodide. We use a compilation of iodide observations (Chance et al., 2019b) that is 45 % larger than has been used previously (Chance et al., 2014) as the dependent variable and co-located ancillary parameters (temperature, nitrate, phosphate, salinity, shortwave radiation, topographic depth, mixed layer depth, and chlorophyll-a) from global climatologies as the independent variables. We investigate the regression models generated using different combinations of ancillary parameters and select the ten best-performing models to be included in an ensemble prediction. We then use this ensemble of models, combined with global fields of the ancillary parameters, to predict a new high resolution global sea-surface iodide field. Sea-surface temperature is the most important variable in all of the top ten models. We estimate a global average sea-surface iodide concentration of 106 nM (with an uncertainty of ∼ 20 %), which is within the range of previous estimates (60–130 nM). Similar to previous work, higher concentrations are predicted for the tropics than for the extra-tropics. Unlike the previous parameterisations, higher concentrations are also predicted for shallow areas such as coastal regions and the South China Sea. Compared to previous work, the new parameterisation better captures observed variability. The iodide concentrations calculated here are significantly higher (40 % on a global basis) than the commonly used MacDonald et al. (2014) parameterisation, with implications for our understanding of iodine in the atmosphere. The global iodide dataset is made freely available to the community (DOI: https://doi.org/10/gfv5v3) and as new observations are made, we will update the global dataset through a "living data" model.
Challenges of Teaching English Communication to Arabic Students
Authors: Abdelgadir Ehsan Mohammed
Published: March 2019

The present study carries out to investigate and identify the communication problems that affecting the Teaching / Learning process of ELT. It aims to help teachers and learners to know the cause of these problems and to use and practice (IPA) in English pronunciation. It also sheds light on the most common mistakes of English sounds in relation to their spellings. That the teacher’s knowledge of these errors makes him /her, able to avoid them. The researcher investigates the topic title: Challenges of teaching communication to Arab students. As a type of problems affecting the Teaching /Learning process of ELT. She follows an experimental design method to achieve this purpose. The subjects for the study were undergraduate students from University of Majmaah (Hotat Sudair College of Science and Humanities for girls). With the sample of two groups of fifty students of the same sex, standard, number, and degree of education. A case study in Hotat Sudair College for girls, to collect data from the subjects by observation through an oral test and statistical analysis. The study arrives at the following results: Only 13% of students care for segmental phonemes. Only 21% of students care for the correct pronunciation of words. Few learners use dictionaries to check English words’ sound in their daily presentations. On the other hand, care for transcriptions of sounds when speaking. Many students lack the basics that are supposed to be learned for acceptable pronunciation then mispronounce words. Then the researcher suggests some steps. She also finds new ideas for further investigations to improve the teaching/learning process and to achieve the aims of English communication.
Delayed Response Improves Inhibitory Control in Low- and High-Impulsivity Adolescents: Effects of Emotional Contexts
Authors: Vázquez-Moreno Almitra , González-Garrido Andrés A. , Ramos-Loyo Julieta
Published: March 2019

The purpose of this study was to identify the effects of delayed response on inhibitory control in low- and high-impulsivity adolescents in the presence of an emotional context. Participants performed a Go/No-Go task in 4 conditions: a control context with and without delayed response, and a pleasant context with and without delayed response. The amplitudes and latencies of the N2 and P3 components were evaluated. The delay increased the number of correct inhibitions and omissions but decreased the number of correct responses and N2 and P3 amplitudes during inhibition. The high-impulsivity adolescents showed larger amplitudes in P3NoGo but shorter N2 latencies during the NoGo trials, and the opposite during the Go trials, as they required more processing time than the low-impulsivity adolescents to restart their motor responses. In conclusion, the delayed response did improve inhibitory control and, the beneficial effects of the delay were less pronounced in the high-impulsivity adolescents when the distraction of the pleasant stimuli was present.