bluuebunny/crossref_metadata_2025 huggingface dataset:
Gamma-Ray Urgent Archiver for Novel Opportunities (GUANO): Swift/BAT Event Data Dumps on Demand to Enable Sensitive Subthreshold GRB Searches
Authors: Tohuvavohu Aaron , Kennea Jamie A. , DeLaunay James , Palmer David M. , Cenko S. Bradley , Barthelmy Scott
Published: August 2020

We introduce a new capability of the Neil Gehrels Swift Observatory to provide event-level data from the Burst Alert Telescope (BAT) on demand in response to transients detected by other instruments. We show that the availability of these data can effectively increase the rate of detections and arcminute localizations of gamma-ray bursts (GRB) like GRB 170817 by >400%. We describe an autonomous spacecraft-commanding pipeline purpose built to enable this science; to our knowledge, this is the first fully autonomous extremely low-latency commanding of a space telescope for scientific purposes. This pipeline has been successfully run in its complete form since 2020 January, and has resulted in the recovery of BAT event data for >800 externally triggered events to date (gravitational waves, GWs; neutrinos; GRBs triggered by other facilities; fast radio bursts; and very high-energy detections), now running with a success rate of ∼90%. We exemplify the utility of this new capability by using the resultant data to (1) set the most sensitive upper limits on prompt 1 s duration short GRB-like emission within ±15 s around the unmodeled GW burst candidate S200114f, and (2) provide an arcminute localization for short GRB 200325A and other bursts. We also show that using data from GUANO to localize GRBs discovered by other instruments, we can increase the net rate of arcminute-localized GRBs by 10%–20% per year. Along with the scientific yield of more sensitive searches for subthreshold GRBs, the new capabilities designed for this project will serve as the foundation for further automation and rapid target of opportunity capabilities for the Swift mission, and have implications for the design of future rapid-response space telescopes.
On the Formation of Lyman β and the O i 1027 and 1028 Å Spectral Lines
Authors: Hasegawa Takahiro , Noda C. Quintero , Shimizu Toshifumi , Carlsson Mats
Published: August 2020

We study the potential of Lyman β and the O i 1027 and 1028 Å spectral lines to help in understanding the properties of the chromosphere and transition region (TR). The oxygen transitions are located in the wing of Lyman β, which is a candidate spectral line for the solar missions Solar Orbiter/Spectral Imaging of the Coronal Environment and Solar-C (EUVST). We examine the general spectroscopic properties of the three transitions in the quiet Sun by synthesizing them assuming nonlocal thermal equilibrium and taking into account partial redistribution effects. We estimate the heights where the spectral lines are sensitive to the physical parameters, computing the response functions to temperature and velocity using a 1D semiempirical atmospheric model. We also synthesize the intensity spectrum using the 3D enhanced network simulation computed with the Bifrost code. The results indicate that Lyman β is sensitive to the temperature from the middle chromosphere to the TR, while it is mainly sensitive to the line-of-sight (LOS) velocity at the lower atmospheric layers, around 2000 km above the optical surface. The O i  lines form lower in the middle chromosphere, being sensitive to the LOS velocities at heights lower than those covered by Lyman β. The spatial distribution of the intensity signals computed with the Bifrost atmosphere, as well as the inferred velocities from the line core Doppler shift, confirms the previous results. Therefore, these results indicate that the spectral window at 1025 Å contains several spectral lines that complement each other to seamlessly trace the thermal structure and gas dynamics from the middle chromosphere to the lower TR.
The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release
Authors: Lyke Brad W. , Higley Alexandra N. , McLane J. N. , Schurhammer Danielle P. , Myers Adam D. , Ross Ashley J. , Dawson Kyle , Chabanier Solène , Martini Paul , Busca Nicolás G. , Mas des Bourboux Hélion du , Salvato Mara , Streblyanska Alina , Zarrouk Pauline , Burtin Etienne , Anderson Scott F. , Bautista Julian , Bizyaev Dmitry , Brandt W. N. , Brinkmann Jonathan , Brownstein Joel R. , Comparat Johan , Green Paul , Macorra Axel de la , Gutiérrez Andrea Muñoz , Hou Jiamin , Newman Jeffrey A. , Palanque-Delabrouille Nathalie , Pâris Isabelle , Percival Will J. , Petitjean Patrick , Rich James , Rossi Graziano , Schneider Donald P. , Smith Alexander , Vivek M. , Weaver Benjamin Alan
Published: August 2020

We present the final Sloan Digital Sky Survey IV (SDSS-IV) quasar catalog from Data Release 16 of the extended Baryon Oscillation Spectroscopic Survey (eBOSS). This catalog comprises the largest selection of spectroscopically confirmed quasars to date. The full catalog includes two subcatalogs (the current versions are DR16Q_v4 and DR16Q_Superset_v3 at https://data.sdss.org/sas/dr16/eboss/qso/DR16Q/): a “superset” of all SDSS-IV/eBOSS objects targeted as quasars containing 1,440,615 observations and a quasar-only catalog containing 750,414 quasars, including 225,082 new quasars appearing in an SDSS data release for the first time, as well as known quasars from SDSS-I/II/III. We present automated identification and redshift information for these quasars alongside data from visual inspections for 320,161 spectra. The quasar-only catalog is estimated to be 99.8% complete with 0.3%–1.3% contamination. Automated and visual inspection redshifts are supplemented by redshifts derived via principal component analysis and emission lines. We include emission-line redshifts for Hα, Hβ, Mg ii, C iii], C iv, and Lyα. Identification and key characteristics generated by automated algorithms are presented for 99,856 broad absorption-line quasars and 35,686 damped Lyman alpha quasars. In addition to SDSS photometric data, we also present multiwavelength data for quasars from the Galaxy Evolution Explorer, UKIDSS, the Wide-field Infrared Survey Explorer, FIRST, ROSAT/2RXS, XMM-Newton, and Gaia. Calibrated digital optical spectra for these quasars can be obtained from the SDSS Science Archive Server.
Exploring the potential of metabarcoding to disentangle macroinvertebrate community dynamics in intermittent streams
Authors: Laini Alex , Beermann Arne J. , Bolpagni Rossano , Burgazzi Gemma , Elbrecht Vasco , Zizka Vera M. A. , Leese Florian , Viaroli Pierluigi
Published: August 2020

Taxonomic sufficiency represents the level of taxonomic detail needed to detect ecological patterns to a level that match the requirement of a study. Most bioassessments apply the taxonomic sufficiency concept and assign specimens to the family or genus level given time constraints and the difficulty to correctly identify species. This holds particularly true for stream invertebrates because small and morphologically similar larvae are hard to distinguish. Low taxonomic resolution may hinder detecting true community dynamics, which thus leads to incorrect inferences about community assembly processes. DNA metabarcoding is a new, affordable and cost-effective tool for the identification of multiple species from bulk samples of organisms. As it provides high taxonomic resolution, it can be used to compare results obtained from different identification levels. Measuring the effect of taxonomic resolution on the detection of community dynamics is especially interesting in extreme ecosystems like intermittent streams to test if species at intermittent sites are subsets of those from perennial sources or if independently recruiting taxa exist. Here we aimed to compare the performance of morphological identification and metabarcoding to detect macroinvertebrate community dynamics in the Trebbia River (Italy). Macroinvertebrates were collected from four perennial and two intermittent sites two months after flow resumption and before the next dry phase. The identification level ranged from family to haplotype. Metabarcoding and morphological identifications found similar alpha diversity patterns when looking at family and mixed taxonomic levels. Increasing taxonomic resolution with metabarcoding revealed a strong partitioning of beta diversity in nestedness and turnover components. At flow resumption, beta diversity at intermittent sites was dominated by nestedness when family-level information was employed, while turnover was evidenced as the most important component when using Operational Taxonomic Units (OTUs) or haplotypes. The increased taxonomic resolution with metabarcoding allowed us to detect species adapted to deal with intermittency, like the chironomidCricotopus bicinctusand the ephemeropteranCloeon dipterum. Our study thus shows that family and mixed taxonomic level are not sufficient to detect all aspects of macroinvertebrate community dynamics. High taxonomic resolution is especially important for intermittent streams where accurate information about species-specific habitat preference is needed to interpret diversity patterns induced by drying and the nestedness/turnover components of beta diversity are of interest to understand community assembly processes.
L’émergence de la pulsion de vie dans le corpus freudien : de la biologie helmholtzienne à la métapsychologie
Authors: Tran The Jessica
Published: August 2020

À travers une archéologie de l’émergence des questionnements relatifs aux principes de régulation du fonctionnement psychique dans le corpus freudien, nous tenterons d’éclairer la manière dont la notion métapsychologique de « pulsion de vie » a pu émerger dans l’œuvre de Freud. Nous pourrons observer que, dès leurs débuts, les considérations théoriques freudiennes ont présenté une autonomie manifeste au regard d’un point de vue strictement biologique. Après nous être intéressés aux fondements physiques du modèle épistémologique de Freud, et notamment à l’influence de l’École de Helmholtz et du principe thermodynamique d’entropie, nous pourrons nous pencher sur les remaniements introduits par la définition de la pulsion de vie en 1920, pour préciser comment, loin de réhabiliter une théorie du vivant dans la pensée freudienne, elle vient au contraire redoubler l’émancipation et l’autonomie du concept métapsychologique de pulsion au regard de toute considération biologique.
Pulsion de vie : lier coûte que coûte, investir sans fin, espérer toujours, aimer encore…
Authors: Lavallée Guy
Published: August 2020

La pulsion de vie est une élaboration de l’excitation de vie. Comme telle, elle s’exprime à la fois par une constante activité de liaison hallucinatoire et positive, un affect d’Espoir, des capacités d’investissement significatives, et surtout un mouvement psychique amoureux qui se déploie jusqu’aux extrêmes. La défense maniaque accompagne l’Éros dans sa lutte contre le risque entropique d’effondrement du moi. La destructivité provient surtout des défenses du moi fourvoyant l’Éros en utilisant notamment l’emprise (hétérodestructrice) et l’envie (auto et hétérodestructrice). Avec nos patients, adultes et adolescents, dans l’analyse de la négativité, comment nous situer « du côté de la vie » ? Si nous y parvenons, la question du bonheur comme affect de vie peut se poser.
Amour et mélancolie dans les analyses de femmes par des femmes
Authors: Jozef Perelberg Rosine
Published: August 2020

Dans la cure analytique de femmes par des femmes, on rencontre parfois un noyau mélancolique au centre de la situation transféro-contre‐transférentielle, qui est l’expression de la perte de l’objet maternel primaire, perte qui n’a jamais fait l’objet d’un travail de deuil. L’attachement à l’objet primaire perdu peut subsister sous une forme mélancolique et invisible, et le désir qui lui est lié ne parvenir à l’état de représentation que dans l’après‐coup du processus analytique. L’auteure explorera les liens qui unissent cet amour primaire à la mélancolie et à l’irreprésentable dans la cure des femmes. Ces cures illustrent l’éminence de la dimension somatique. L’internalisation du corps de la mère, une condition nécessaire au développement de la femme, peut revêtir des qualités effrayantes, caractéristiques des objets partiels fragmentés. L’auteure présente et discute le cas d’une analyse à cinq séances par semaine.
À propos du texte de Rosine Jozef Perelberg : « Amour et mélancolie dans les analyses de femmes par des femmes »
Authors: Chabert Catherine
Published: August 2020

Le texte de Rosine Perelberg à propos des cures de femmes avec des femmes ouvre des voies associatives plurielles, à la fois cliniques et métapsychologiques. D’une part, le transfert « homosexuel » et l’excitation qu’il génère peuvent être combattus par une idéalisation exacerbant le narcissisme ; d’autre part, l’actualisation des angoisses de séparation et de perte se heurte au noyau mélancolique. Les deux sont susceptibles de se conjuguer dans un même mouvement que l’auteur rattache à une érotique mélancolique prise dans le double courant des pulsions de vie et des pulsions de mort. Enfin, le retournement mélancolique de la haine contre le moi et la libération des fantasmes homosexuels tentent de masquer la rivalité mortifère avec l’analyste.
Lacan et le péché du savoir
Authors: Robion Jacques
Published: August 2020

Le Manque-à-être, où prend sa source le Désir, se creuse, selon Lacan, dans le moment où nous voulons accéder à un savoir de nous-mêmes. Nous nous perdons à vouloir nous connaître dans et par l’acte langagier. En réalité, ce Manque n’est que l’éternelle punition que nous inflige Lacan le religieux, pour notre coupable désir de Savoir. Le Manque incomblable est le châtiment que nous méritons de subir d’avoir voulu prétendre au Savoir. Mais heureusement une cure psychanalytique, lacanienne, pourra nous apporter le salut grâce à un savoir de notre impuissance à savoir. Grâce à elle, nous ne manquerons plus désormais du savoir de notre manque-à-être et de notre impuissance à savoir.
Nueva especie de Leistus Fröhlig, 1799 de las Islas Canarias (Coleoptera: Carabidae, Nebriinae)
Authors: Machado Antonio
Published: August 2020

Se describe Leistus kratkyi n. sp. de la isla de La Gomera, en el archipiélago canario. Pertenece al subgé­nero Nebrileistus Banninger, 1925, endémico de la Macaronesia, que cuenta con otras dos especies: Leistus (Nebrileistus) ellipticus Wollaston, 1854 de Madeira, y Leistus (Nebrileistus) nubivagus Wollaston, 1864 de Tenerife y Gran Canaria. La nueva especie comparte caracteres de ambos taxones y se caracteriza por la presen­cia de cuatro setas en el prementón, el pronoto y los élitros con los márgenes testáceos, pronoto muy transverso y los élitros ensanchados cerca de su base.
Development of Motivation for Achieving Professional Success of Technical Specialties Students in Russia during Practical Training at Industrial Enterprises
Authors: Ďuriš Viliam , Chumarov Sergey G. , Vasileva Lidia N.
Published: August 2020

The article deals with the issues of motivation of students of technical universities to professional activity by means of industrial practices. The con-cept of industrial practice is considered, the goals, tasks, and functions of students' practical training in the specialty "Radio Engineering" are clarified. The peculiarities of the practice organization are noted. Based on the results of the diagnostic study, the authors conclude that the origin of students' in-dustrial practice contributes to an increase in the level of need for success. The learning process becomes more interesting, emotionally and personally significant.
O2O Iterative Project-based Teaching Model for Literature Course
Authors: Dai Yin
Published: August 2020

As a main course of Chinese language and literature major in colleges, Literature Course is one of required courses for students majoring in journalism, hosting and broadcasting, which can cultivate students’ favorable humanistic quality and promote their specialty development. However, some problems exist in traditional teaching process, such as low interest in linguistics, insufficient interaction between teachers and students, and single evaluation system. Starting from Merrill’s chief teaching principle and aiming at teaching deficiencies of Literature Course, this study innovatively introduced O2O iterative project-based teaching model to establish an iterative teaching model based on online and offline integration. In combination of the question-based teaching method, four teaching steps including “construction, guidance, tutoring and introspection” were designed under the cooperation of O2O space environment and collaborative mechanism, and a brand-new implementation framework for linguistics teaching was tentatively constructed. To test the effect of this teaching mode, classification and regression tree (CART) algorithm of data mining technology was applied to compare and evaluate teachers’ teaching ability before and after the implementation of this teaching mode. It is found that, this teaching reform contributes to cultivating students’ critical thinking and innovation ability, and enhancing their academic research spirit and ability of language theory application.
Training Strategies for Practical Ability of College Students Majoring in Computer-Aided Design
Authors: Liu Xingde
Published: August 2020

Currently, the college students majoring in computer-aided design (CAD), a discipline under the department of mechanical engineering, generally have a poor ability to solve engineering problems. Therefore, this paper attempts to design effective training strategies to improve the practical ability of the CAD majors. Firstly, the authors highlighted the promoting effect of the CAD on the practical ability of college students, and summed up the prob-lems of college students in the engineering application of the CAD. On this basis, several strategies were put forward to improve the practical ability of the CAD majors from three aspects: CAD curriculum planning, CAD practi-cal training and CAD platform construction. To verify the effectiveness of the strategies, an index system was established based on information entro-py, and organized into an evaluation model through expert scoring. The strategies and evaluation model provide strong supports to the training of practical ability for the CAD majors.
A New Classification for Ad-Hoc Network
Authors: Ragab Ahmed Refaat Sobhy Ahmed
Published: August 2020

This paper focus on developing a new practical classification for ad-hoc networks, were all the past classifications revolve upon three main categories respectively, mobile ad- hoc network (MANET), Vehicle ad-hoc network (VANET) and Flying ad-hoc network (FANET). My new classification will illustrate Underwater vehicle ad-hoc network (UWVANET) as the fourth category in ad-hoc main classification, showing the powerful and the weakness of each category defined.
Interactive Mobile Applications to Support the Teaching of Reading and Writing of Spanish for Children in Primary Education
Authors: Hernández-Campos Eduardo , Jaimez-González Carlos R. , García-Mendoza Betzabet
Published: August 2020

In the educational process, literacy is considered as a fundamental part, which focuses on the ability to read and write. Reading and writing are processes that, although they have features in common, they may not be developed in parallel, but both are encompassed in teaching methods that aim to develop these two skills at the same time. Interactive mobile applications can be part of a strategy to support the teaching of reading and writing skills. This paper presents a review of five interactive mobile applications to support the teaching of Spanish reading and writing skills. Mobile applications were analyzed based on their general features and the activities they have. The following general features were taken into consideration: the existence of voice assistants, supporting characters, language selection, progression of activities, creation of avatars, variable difficulty, progress panel, images, among others. The activities considered for the revision were those that allow completing syllables, completing words from letters, completing words from syllables, completing sentences, relating images to words, among others.
Total Phenolic Compounds of Fruit and Vegetable Powders in Thailand
Authors: Panich Sirirat
Published: August 2020

Fruits and vegetables pack with various antioxidant compounds which are known as an essential constituent for maintaining health. Unfortunately, the shelf life of fresh produces is short after harvesting. As a result, a dehydration process by converting freshly harvested parts into powders can be an alternative to extend the storage period. The powder delivers not only nutrients, flavor, color, and texture, but the dehydrated form is also easy for storage, transportation, and is used as an ingredient in healthy products. However, the loss of essential nutrients can besides occur during the dehydration process. In order to develop superfoods, choosing the type of fruits and vegetables which can maintain the highest both favor and nutritional is the most crucial consideration to gain the highest phytonutrients after the preservative process. This study was designed to explore and evaluate the potential of tropical Thai’s fruit and vegetable powders on antioxidant activity based on total phenolic compound (TPC) compared with the commercial superfoods outside the country. The TPC was assessed based on the Folin–Ciocalteu reagent (FCR), correlating with antioxidant capacities. Gallic acid equivalents (GAE) in milligrams per gram dry of the sample was expressed. The highest GAE of the imported product (from a total of nine samples) was found to be 11.32+0.09 mg whereas the highest level of the total polyphenols was found in Thai’s veggies (Teaw) and fruit (Emblica) at 152.16+11.10 and 134.82+2.27, respectively. These GAE values are higher than the GAE values of selected imported fruits and veggies, which are well known as superfood constituents.
Improvement of Mechanical Properties of Polylactic Acid/Oil Palm Fiber Composites by Alkali Treatment
Authors: Srinara Thikampon , Lowrattanaounjit Nantawan , Chaochanchaikul Kantima
Published: August 2020

The aim of this work is the improvement of mechanical properties of oil palm fiber (OPF) reinforced polylactic acid (PLA) composites by using sodium hydroxide (NaOH) treatment. NaOH concentrations (0 to 15 %wt.) and treatment times (0 to 30 min) were varied to determine the suitable condition for surface treatment of OPF. Aspect ratio (L/D) and the surface texture of OPF were investigated by using an optical microscope and scanning electron microscope (SEM), respectively. The result suggested that the most suitable condition for surface treatment of OPF was NaOH concentration of 10 %wt. at immersion time of 20 min. Aspect ratio and surface roughness of OPF increased after alkali treatment. For the effect of alkali treatment on the mechanical properties of the composite, it was evaluated by tensile and impact testings and SEM technique. The results showed that surface treatment with NaOH led to enhance mechanical properties of the composite due to improvement of interfacial adhesion.
Effects of Glycine, L-Arginine and their Complexation with Polyvinylpyrrolidone on Tetrahydrofuran Hydrate Formation
Authors: Rong Ke Sheng , Shi Xiao Mei , Gong Jia Qin , Wang Qi Bing , Liu Ke Cheng , Qu Yuan Zhi , Yao Xu Yang
Published: August 2020

Hydrophilic amino acids as a new type hydrate inhibitor is a hot topic for scholars. In this paper, the influence of glycine and L-arginine, and their complexation with polyvinylpyrrolidone (PVP) on hydrate formation were clarified by tetrahydrofuran (THF) hydrate formation simulation experiments, and the intrinsic influence mechanism was revealed by many experimental methods. The results show that glycine has a strong inhibitory effect on water molecules because of its strong disturbance to water molecules, and the inhibitory effect is the best when the addition of glycine is 1.0 wt%. Due to the disturbance and binding of hydrophilic amino acids to water molecules, the effect of PVP on the semi-cage structure of water molecules as well as the adsorption and encapsulation of hydrate crystal particles, the combination of glycine and L-arginine and PVP has synergistic inhibitory effect on the formation of THF hydrate. When the total amount of hydrate inhibitor is 1.0 wt%, the synergistic inhibition ability of glycine and PVP is stronger. The results obtained in this paper provide an experimental and theoretical basis for the research and development of new hydrate inhibitors.
IL-21 Promotes Intestinal Memory IgA Responses
Authors: Huang Xiangsheng , Yang Wenjing , Yao Suxia , Bilotta Anthony J. , Lu Yao , Zhou Zheng , Kumar Pawan , Dann Sara M. , Cong Yingzi
Published: August 2020

The role of IL-21, produced mainly by Th17 cells and T follicular helper cells, has been intensively investigated in B cell differentiation and Ab class switch. However, how IL-21 regulates memory IgA+ B cell development and memory IgA responses in the intestines is still not completely understood. In this study, we found the total IgA+ B cells as well as CD38+CD138−IgA+ memory B cells were significantly increased in intestinal lamina propria (LP) of TCRβxδ−/− mice after transfer of microbiota Ag-specific Th17 cells but not Th1 cells. Although IL-21R−/− mice or IL-17R−/− mice showed decreased Ag-specific memory IgA production in the intestines upon infection with Citrobacter rodentium, the percentage of IgA+CD38+CD138- memory B cells in Peyer’s patches and LP was decreased only in IL-21R−/− mice, but not in IL-17R−/− mice, after reinfection with C. rodentium compared with wild-type mice. Blockade IL-21 in vivo suppressed intestinal C. rodentium–specific IgA production as well as IgA+CD38+CD138− memory B cells in Peyer’s patches and LP. Furthermore, IL-21 significantly induced B cell IgA production in vitro, with the increased expression of genes related with class-switching and memory B cell development, including Aicda, Ski, Bmi1, and Klf2. Consistently, Aicda and Ski expression was decreased in B cells of IL-21R−/− mice after C. rodentium reinfection. In conclusion, our study demonstrated that IL-21 promotes intestinal memory IgA B cell development, possibly through upregulating differentiation-related and class switching–related genes, indicating a potential role of IL-21 in memory IgA+ B cell responses in the intestines.
Zebrafish F-box Protein fbxo3 Negatively Regulates Antiviral Response through Promoting K27-Linked Polyubiquitination of the Transcription Factors irf3 and irf7
Authors: Li Zhi , Fan Sijia , Wang Jing , Chen Xiaoyun , Liao Qian , Liu Xing , Ouyang Gang , Cao Hong , Xiao Wuhan
Published: August 2020

FBXO3, belongs to the F-box family of proteins, which has been reported to involve in host autoimmune and inflammatory responses by promoting its substrates for ubiquitylation. However, thus far, its physiological function in antiviral immunity remains elusive. In this study, we report that overexpression of zebrafish fbxo3 suppresses cellular antiviral responses. Moreover, disruption of fbxo3 in zebrafish increases the survival rate upon spring viremia of carp virus exposure. Further assays indicate that fbxo3 interacts with irf3/irf7 and specifically catalyzes K27-linked ubiquitination of irf3 and irf7, resulting in proteasomal degradation of irf3 and irf7. However, the F-box domain of fbxo3 is not required for fbxo3 to interact with irf3/irf7 and to inhibit transactivity of irf3 and irf7. This study provides novel insights into fbxo3 function and the underlying mechanisms. In addition, it sheds new light on the regulation of IFN-I signaling by F-box proteins.
LA HISTORIA Y LAS CRISIS ENTRE CUBA Y LOS ESTADOS UNIDOS
Authors: García Gaitán VICTOR , Guzmán De Armas ALEJANDRO
Published: August 2020

En el artículo se trata de tal aspecto de las relaciones cubano-norteamericanas del siglo XX como la así llamada Mini Crisis del Caribe de 1979
Language learning as a factor of social cohesion in multilingual society: rection on the functional change of teaching and learning foreign languages
Authors: Fernández Bueno Aída
Published: August 2020

Teaching / learning foreign languages in Spain has improved a signi cant functional change in recent years, motivated directly by the social changes, and especially, by immigration. To the group of students from more traditional and large pro le is added another, multinational, for whom Spanish is a foreign language. That implies the condition of bridge language. To attend these students causes some adjustments in the obligatory education and in a lesser level at the university. Considering this context of diversi cation of student´s pro le foreign language, the answer only can be encourage language teaching as the unique e ective method to promote social cohesion.
Economic potential of the Spanish language: language as a source of capital and jobs
Authors: Tsareva Natalia
Published: August 2020

The article is devoted to the study of the economic potential of the Spanish language, language that speak 500 million people in the modern world. The growing economic value of the Spanish language is determined by two main factors: rst, the process of economic, political and cultural globalization, and second, the development of the information society and its main attribute - the Internet.
COMBINED APPLICATION PROPOSAL OF VALUE STREAM MAPPING (VSM) AND METHODS TIME MEASUREMENT UNIVERSAL ANALYSIS SYSTEM (MTM-UAS) METHODS IN TEXTILE INDUSTRY
Authors: DEMİRCİ Özlem , GÜNDÜZ Tülin
Published: August 2020

Due to high customer expectations in textile world, companies make great efforts in order to survive. Customers always expect best quality, best price and fastest service time. In this article, the method of VSM (Value Stream Mapping) was used together with MTM-UAS (Methods Time Measurement Universal Analysis System) in the production process of the textile industry. The lean manufacturing system, which is developed to provide optimal service to customers, aims both to eliminate wastes in the process and to reduce the time to minimum including time between delivering and the product design stage. Within the scope of this study, the duration of lead time is reduced by eliminating non value added activities in the flow of process with value stream mapping method which is one of the lean manufacturing tools. In order to accomplish requested sustainability of well-disposed standard procedures, it is preferred to use MTM-UAS methodology in this study. An optimal operational procedure is recreated with the aid of MTM-UAS to standardize human body movements. In consequence of the study, production lead time was reduced, recovery at duration of value-added activities were observed, actual body movements were standardized and unnecessary and extra movements were eliminated by using value stream mapping tool and MTM-UAS in textile industry. As a result, it is observed that production lead time was reduced at the rate of %60 and also, duration of non-value-added activities was improved at the rate of 60%.
Penggunaan Certainty Factor Dalam Sistem Pakar Diagnosa Penyakit Jerawat
Authors: Puteri Aida Gustika , Bhakti R.M.Herdian
Published: August 2020

Jerawat adalah suatu keadaan dimana pori-pori tersumbat sehingga menimbulkan kantung nanah yang meradang. Rata-rata pasien mengalami keluhan jerawat karena masa pubertas, hormon atau keturunan, ataupun kesalahan dalam penggunaam kosmetik. Berdasarkan permasalahan tersebut, maka penelitian ini bertujuan untuk memberikan informasi mengenai jenis-jenis jerawat yang biasa terjadi melalui gejala yang ditimbulkannya serta solusi dalam pengobatannya melalui metode certainty factor. Berdasarkan hasil pengujian secara blackox sistem mampu mendeteksi penyakit jerawat sebesar 100%, selain itu juga sistem dapat mempermudah user untuk berkonsultasi tanpa harus bertemu dengan dokter spesialis.
Rancang Bangun Alat Pendeteksi Kebocoran Gas LPG Menggunakan Sensor MQ-6 Berbasis Arduino
Authors: Fauziyah Intan Nur , Harliana Harliana , Gigih Muhamad Bagas
Published: August 2020

Saat ini banyak masyarakat yang menggunakan kompor gas LPG karena pengaruh dari program pemerintah yang mengkonversi minyak tanah menjadi gas LPG. Namun, penggunaan LPG juga masih memiliki beberapa kekurangan yaitu, bahaya yang ditimbulkan jika terjadi kebocoran gas. Bahaya tersebut dapat menyebabkan ledakan atau kebakaran yang dapat membahayakan keselamatan pengguna. Penelitian ini bertujuan untuk membantu pengguna gas LPG dalam mendeteksi kebocoran pada tabung LPG. Sehingga pada saat sensor MQ-6 mendeteksi adanya kebocoran pada tabung gas LPG, sensor akan mengirimkan data ke mikrokontroler Arduino untuk menghidupkan buzzer dan led. Setelah melakukan serangkaian percobaan maka buzzer dan led akan hidup, ketika nilai ppm yang terdeteksi telah mencapai ambang batas yaitu 500 ppm
Implementasi Algoritma Apriori Untuk Mengetahui Pola Pembelian Di Starcomp Jogja
Authors: Rahim Abdul Mizwar A. , Suni Guido Adolfus , Sasi Setefensius , Pangestu Galang Cahya , Fainsenem Maikel , Arsyad A Muhammad
Published: August 2020

Toko Starcomp Jogja adalah salah satu toko yang bergerak dalam bidang bisnis yakni melakukan penjualan produk-produk Komputer, dimana Toko ini setiap harinya harus memenuhi kebutuhan konsumen dan dituntut untuk mengambil keputusan yang tepat dalam menentukan strategi penjualan. Maka Dengan itu pihak toko dapat memanfaatkan data transaksi penjualan yang telah disimpan sebelumnya dalam bentuk kertas atau yang telah disimpan dalam database agar kedepannya pihak Toko Starcomp Jogja dapat mengetahui kebiasaan pelanggan atau perilaku pelanggan tentang produk Komputer yang sering dibeli. Cara mengetahui produk Komputer yang dibeli secara bersamaan, pihak toko dapat menggunakan aturan asosiasi, yang merupakan teknik data mining untuk menemukan aturan asosiasi dan kombinasi antar item. Proses pencarian asosiasi menggunakan bantuan algoritma apriori untuk menghasilkan pola kombinasi item dan aturan sebagai pengetahuan dan informasi penting dari data transaksi penjualan. Hasil dari penelitian ini adalah dalam bentuk aplikasi untuk menganalisis pola belanja di mana pola yang dihasilkan dapat digunakan sebagai rekomendasi dalam menentukan strategi penjualan oleh toko Starcomp Jogja kedepan
Peramalan Jumlah Mahasiswa Baru Dengan Exponential Smoothing dan Moving Average
Authors: Landia Barkah
Published: August 2020

Untuk menentukan banyaknya jumlah calon mahasiswa baru, saat ini masih dilakukan berdasarkan intuitif tanpa melakukan analisa dari beberapa data di tahun sebelumnya. Hal ini membuat STIKOM Poltek Cirebon merasa kewalahan dalam mempersiapkan sarana dan prasarana saat jumlah calon mahasiswa baru mengalami peningkatan yang cukup besar. Oleh karena itu penelitian ini akan menggunakan metode single exponensial smoothing dan moving average dalam meramalkan jumlah calon mahasiswa yang akan mendaftar. Berdasarkan hasil penelitian didapatkan bahwa metode exponential smoothing ternyata dapat mengatasi kelemahan moving average yang pembobotannya sama rata setiap tahunnya, sehingga penggunaan exponential smoothing berhasil menutupi kekurangan metode moving average
Contraste de la frecuencia de salida del hogar ante la pandemia por COVID-19
Authors: Egas Andrea , Santander Carmen Elena , Salazar Marcelo , Grijalva Alejandro
Published: August 2020

En el siguiente estudio se evalúa un panorama con respecto al comportamiento sociológico en un preámbulo tanto antes durante y después de esta crisis social que se está viviendo debido a la pandemia de hoy en día. Por ello para sustentar dicha investigación se realizó un censo en el cuál, mediante el uso de herramientas estadísticas, se pudo realizar una comparación entre un antes y un durante de la pandemia, lo cual facilitaría intrínsicamente a la predicción de una denominada post pandemia. En este texto se pretende detallar el proceso y forma de la encuesta, al igual que los resultados obtenidos de la misma. Se proveen, además, posibles explicaciones para estos resultados, guiándose por las restricciones de salud nacionales como posibles razones para el cambio de comportamiento actual. Palabras Clave: coronavirus, pandemia, frecuencia de salida. Referencias [1]P. Byass, «Eco-epidemiological assessment of the COVID-19 epidemic in China, January-February 2020,» Web Of Science, vol. 13, nº 1, 2020. [2]P. Stefanoni, «Brasil: pandemia, guerra cultural y precariedad,» Nueva Sociedad, pp. 49-59, 2020. [3]M. J. Báguena Cervellera, «La pandemia de COVID-19 a la luz de la historia de la medicina,» Investigación y Ciencia , 2020. [4]A. Levy, «La pandemia de COVID-19 podr{ia ayudar a resolver una gran incógnita climática,» Investigación y Ciencia, 2020. [5]T. Marcel Ariel, «Relaciones en tiempos de pandemia: COVID-19 y bienestar animal, ambiental y humano,» Revista Facultad Nacional De Agronomia Medellin, vol. 2, 2020. [6]F. Manrique-Abril, «Modelo SIR de la pandemia de Covid-19 en Colombia/SIR model of the COVID-19 pandemic in Colombia,» Revista De Salúd Publica, vol. 22, pp. 1-6, 2020. [7]D. Arango-Londoño , «Predicciones de un modelo SEIR para casos de COVID-19 en Cali, Colombia/Predictions of a SEIR model for COVID-19 cases in Cali-Colombia,» Revista De Salúd Publica, vol. 22, nº 2, pp. 1-9, 2020. [8]J. Gonzales-Castillo , «Pandemia de la COVID-19 y las Políticas de Salud Pública en el Perú: marzo-mayo 2020/COVID-19 pandemic and Public Health Policies in Peru: March-May 2020,» Revista De Salúd Publica, vol. 22, nº2, pp. 1-9, 2020. [9]A. Valenzuela-Cazés y L. Becerra-Ostos, «Práctica clínica, ámbito laboral y riesgos de la fisioterapia ante el COVID-19/Clinical practice, work and risks of physical therapy in the face of COVID-19,» Revista De Salúd Publica, vol. 22, nº 2, pp. 1-4, 2020. [10]P. Montes-Alarcón y A. Campo-Arias, «Los médicos generales y la salud mental en la pandemia por COVID-19,» Duazary, vol. 17, nº 3, pp. 4-6, 2020.
EVALUACIÓN DE LA LABOR DOCENTE EN LA PRÁCTICA IGUALITARIA DE GÉNERO EN EDUCACIÓN INICIAL
Authors: Pozo Andrea , García Ruth , Casa Erika , Logroño Moisés
Published: August 2020

La inequidad de género en el ámbito educativo se puede considera como un problema social que afecta a nivel mundial. El objetivo de esta investigación fue analizar la práctica docente en el ámbito de la educación inicial, considerando la influencia de los familiares y docentes en los primeros años de vida del infante donde se atribuye características estereotipadas de comportamiento adjuntas a un género. La metodología se basó en la investigación cualitativa y cuantitativa, con una muestra total conformada por 119 estudiantes del nivel inicial y 6 docentes de cuatro instituciones fiscales del Distrito 9, Parroquia El Quinche, El instrumento utilizado fue una lista de cotejo para los infantes y un cuestionario a los docentes. El estudio revelo que las docentes no generan la igualdad de género en las aulas, existe un desconocimiento de este tema y también señala que los factores culturales del entorno son fundamentales en este proceso.

Palabras Clave: equidad de género, factores culturales, estereotipos, educación inicial.

Referencias

[1]G. Hernández Mendez, «Habitus, estereotipos y roles de género. Percepciones de profesores y estudiantes,» Docencia Universitaria , vol. 14, nº 1, pp. 89-105, diciembre 2003.

[2]E. Valencia Medina, «La evaluación de la calidad educativa para el mejoramiento del perfil profesional de educación,» Universidad Ciencia y Tecnologia, vol. 2, nº 2, pp. 19-25, noviembre 2019.

[3]C. Salinas Boldo, «Equidad de géneros como unidad de aprendizaje en la universidad,» Alteridad, vol. 13, nº 2, pp. 180-191, Julio 2018.

[4]M. d. Educación, Currriculo de educación Inicial, Quito: Ministerio de Educación, 2014.

[5]A. Constituyente, Constitución de la Republica del Ecuador, Quito: Ministerio del Ecuador, 2008, p. 27.

[6]O. B. Reyes Meza, F. M. Ávila Rosales, M. V. Andrade Torres y D. M. d. R. Alcívar Cedeño, «Influencia del género en los estilos de aprendizaje,» Universidad Ciencia y Tecnología, vol. 23, nº 94, pp. 48-53, Octubre 2019.

[7]H. Lia y M. Gracia, «Uso de la aplicación digital avaloe-ssd como instrumento de desarrollo docente para mejorar las competencias comunicativas y linguisticas de los alumnos de educación inicial,» Universidad Ciencia y Tecnología, vol. 2, nº 2, pp. 39-44, Noviembre 2019.

[8]C. J. Quiaragua González, «¿Por qué los profesores guardan silencio acerca de la desigualdad de género en las escuelas?,» Actualidades investigativas en Educación, vol. 16, nº 3, pp. 1-21, Diciembre 2016.

[9]L. Camacho Brown y H. Watson Soto, «Reflexiones sobre Equidad de Género y Educación Inicial,» Inter Sedes, vol. VIII, nº 14, pp. 33-48, julio 2007.

[10] L. Raspall, Lo que necesitan l@s niñ@as. ¿Una nueva escuela?, Rosario: HomoSapiens, 2019, pp. 37,121-135.
Effects of NOx and seed aerosol on highly oxygenated organic molecules (HOM) from cyclohexene ozonolysis
Authors: Räty Meri , Peräkylä Otso , Riva Matthieu , Quéléver Lauriane , Garmash Olga , Rissanen Matti , Ehn Mikael
Published: August 2020

Abstract. Cyclohexene (C6H10) is commonly used as a proxy for biogenic monoterpenes, when studying their oxidation mechanisms and secondary organic aerosol (SOA) formation. The ozonolysis of cyclohexene has been shown to be effective at producing highly oxygenated organic molecules (HOM), a group of molecules known to be important in the formation of SOA. Here, we provide an in depth look at how, on a molecular level, the HOM formation and fate changed with perturbations from NOx and seed particles. HOM were produced in a chamber from cyclohexene ozonolysis, and measured with a chemical ionisation mass spectrometer (CIMS) using nitrate (NO3−) as reagent ion. As high-resolution CIMS instruments provide mass spectra with numerous ion signals and a wealth of information that can be hard to manage, we employed a primarily statistical approach for the data analysis. To utilise as many individual HOM signals as possible, each compound was assigned a parameter describing the quality of the observed signal. These parameters were then used as weights or to determine the inclusion of a given signal in further analyses. Under unperturbed ozonolysis conditions, known HOM peaks were observed in the chamber, including C6H8O9 as the largest HOM signal, and C12H20O9 as the largest dimer product. With the addition of nitric oxide (NO) into the chamber, the spectrum changed considerably, as expected. Dimer product signals decreased overall, but an increase in dimers with nitrate functionalities was seen, as a result of NO3 radical oxidation. The response of monomer signals to NO addition varied, and while nitrate-containing monomers increased, non-nitrate signals either increased or decreased, depending on the individual molecules. The addition of seed aerosol increased the condensation sink, which markedly decreased the signals of all low-volatility compounds. Larger molecules were seen to have a higher affinity for condensation, but a more detailed analysis showed that the uptake was controlled mainly by the number of oxygen atoms in each molecule. All non-nitrate compounds with at least 7 oxygen atoms were observed to condense onto the seed aerosol at close to equal rates. Nitrates required higher mass and higher oxygen content to condense at similar rates as the non-nitrate HOM. A comparison to experiments with alpha-pinene reported earlier, showed quite a similar relationship between elemental composition and volatility, although products from alpha-pinene ozonolysis appeared to require slightly higher oxygen numbers for the same decrease in volatility. In addition, two models developed for predicting volatilities of volatile organic compound (VOC) oxidation products were tested on the ozonolysis products of cyclohexene.
Comparing different generations of idealized solar geoengineering simulations in the Geoengineering Model Intercomparison Project (GeoMIP)
Authors: Kravitz Ben , MacMartin Douglas G. , Visioni Daniele , Boucher Olivier , Cole Jason N. S. , Haywood Jim , Jones Andy , Lurton Thibaut , Nabat Pierre , Niemeier Ulrike , Robock Alan , Séférian Roland , Tilmes Simone
Published: August 2020

Abstract. Solar geoengineering has been receiving increased attention in recent years as a potential temporary solution to offset global warming. One method of approximating global-scale solar geoengineering in climate models is via solar reduction experiments. Two generations of models in the Geoengineering Model Intercomparison Project (GeoMIP) have now simulated offsetting a quadrupling of the CO2 concentration with solar reduction. This simulation is artificial and designed to elicit large responses in the models. Here we show that energetics, temperature, and hydrological cycle changes in this experiment are statistically indistinguishable between the two ensembles. Of the variables analyzed here, the only major differences involve highly parameterized and uncertain processes, such as cloud forcing or terrestrial net primary productivity. We conclude that despite numerous structural differences and uncertainties in models over the past 20 years, including an increase in climate sensitivity in the latest generation of models, broad conclusions about the climate response to global solar dimming remain robust.
Assessment of a new artificial buckwheat species Fagopyrum hybridum as a source of plant raw materials compared to F. Tataricum and F. Esculentum
Authors: Klimova Elena , Fesenko Ivan , Kuznetsova Elena , Brindza Ján , Nasrullaeva Gyunesh , Rezunova Olga , Kuznetsova Elena
Published: August 2020

A promising way to increase the use of buckwheat is the wider introduction of technologies for its processing, including grinding of non-hulled grain. It requires the search for new plant materials with more suitable characteristics. In this work, the possibilities to use the grain of a new artificial buckwheat species Fagopyrum hybridum for flour production are studied in comparison with two cultivated species F. tataricum and F. esculentum. Some chemical characteristics of F. hybridum flour were evaluated. According to the size of the kernel fragments in different modes of milling within each species the significant differences were identified within F. esculentum and F. hybridum (p <0.001 and p <0.05, respectively); there were no significant differences within F. tataricum (p >0.1). Fragments of the seed hulls of F. tataricum and F. hybridum compared to ones of F. esculentum were distinguished by the absence of pronounced acute angles. For the cultivated species, amino acid compositions of grain protein of the studied samples manifest no strong deviations from earlier published results. The new species F. hybridum has the amino acid composition similar to ones of the both cultivated species with slight superiority in the content of all essential amino acids. So, the content of Cysteine, Tryptophan, Arginine, Lysine, Methionine, Leucine + Isoleucine, Threonine, Histidine and Valine in seeds of F. hybridum was 5.2, 15.0, 25.8, 30.2, 31.2, 36.0, 38.4, 41.1 and 46.2% higher compared to F. tataricum and 11.1, 43.7, 39.2, 3.7, 31.2, 15.2, 14.8, 20.0, 18.9% higher compared to F. esculentum. Using DPPH it was assessed the antioxidant activity (AOA) of whole grain flour of three buckwheat species and decreasing of the AOA during heating up to 100 °C.  After water extraction the AOA was maximal for F. tataricum flour; F. hybridum and F. esculentum manifested similar values with the same decline dynamics during heating. After ethanol extraction the flour of F. hybridum shown higher AOA compared to both cultivated species before temperature treatment (1.3 times) as well as after heating to 100 °C (1.2 times). The results of the analysis of the fractional composition of flour from the whole grain of the three buckwheats shown the fragments of the seed hulls of F. tataricum and F. hybridum compared to ones of F. esculentum were characterized by the absence of pronounced acute angles. Additional experiments are needed to optimize the technology of whole-grain buckwheat flour. But the grain of F. tataricum and F. hybridum looks like more suitable for these purposes than the non-hulled grain of F. esculentum.