bluuebunny/crossref_metadata_2025_split huggingface dataset:
THE INFLUENCE OF THE HARVESTED MATURITY TO CANTALOUPE QUALITY CUCUMIS MELO L. VAR. RETICULATUS IN SHELFLIFE
Authors: Nguyen Lieu Thi Thuy , Le Ngoc Si 
Published: June 2019

Maturity harvest, quality and the shelf life of fruits after harvesting have intimate relationships with one another, especially to the climacteric fruit group. Maturity harvest is the most important factor that determines postharvest shelf life and the quality of cantaloupe [1]. There are significant physiological changesbetween immature and mature fruit during the development of cantaloupe that affect the quality of cantaloupe. In this research, Chu Phan cantaloupe was harvested at 26, 29, 32, 35, 38, 41 days after setting fruits. The results showed that the most suitable time for harvesting the cantaloupe wasat 32 days after setting fruits. The average weight of fruit was 1,68 kg, the hardness reached 0,1834 kg/cm2, the brix valued 6° brix, total sugar of 40mg/g, titratable axitityof 0,05%, vitamin C of 41 mg%; and the storage time at 10 ± 1°C has been extended to 21 instead of 15 days to the cantaloupe which was stored at 28 ± 1°C.
BUILDING THE ASSESSMENT CRITERIA OF EXPERIMENTAL CAPACITY BASED ON SELF-CREATED EXPERIMENTS
Authors: Nguyen Anh Hoang 
Published: June 2019

Experimental competency is one of the specialized capabilities, important to be conceived and developed in the process of teaching physics. In this article we present how to use selfcreated experiments to assess the studying results in relevance to the experimental competency development for students in teaching physics in high school.
PREPARATION AND CHARACTERIZATION OF CURCUMIN NANOPARTICLES LOADED THERMOSENSITIVE GELATIN - PLURONIC F127 HYDROGEL FOR WOUND HEALING APPLICATION
Authors: Nguyen Trinh Thi Ngoc , Tran Quyen Ngoc , Nguyen Linh Thi Yen , Nguyen Thinh Tien 
Published: June 2019

Curcumin, a natural phenolic compound, is extracted from turmeric exhibiting several biomedical activities. Unfortunately, less aqueous solubility causesl drawback in medicinal application. This study introduces a method in order to produce a biomaterial containing high content of curcumin nanoparticles, which can overcome curcumin’s poor dissolution and wound healing. This method uses a thermo-reversible pluronic F127-grafted gelatin (GP) which play the role as surfactant to disperse and protect nanocurcumin from aggregation. The synthetic GP copolymer was identified via 1H NMR. Thermal transition behavior was identified under test tube inversion and differential scanning colorimetry (DSC). The synthesized curcumin size was characterized by Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS), which indicated that the size of nanocurcumin significantly varied ranging from 7 to 285 nm according to the amount of feeded curcurmin. The nanocurcumin-dispersed GP copolymer solution forms the nanocomposite hydrogel when warmed up to 36.27 °C. Release profile indicated the sustainable release control of nanocurcumin in the thermogel system. These results showed potential application of the biomaterial in tissue regeneration.
Statistical Analysis of Interplanetary Magnetic Field Path Lengths from Solar Energetic Electron Events Observed by WIND
Authors: Zhao Lulu , Li Gang , Zhang Ming , Wang Linghua , Moradi Ashraf , Effenberger Frederic 
Published: June 2019

Abstract
We calculate the interplanetary magnetic field path lengths traveled by electrons in solar electron events detected by the WIND 3DP instrument from 1994 to 2016. The velocity dispersion analysis method is applied for electrons at energies of ∼27–310 keV. Previous velocity dispersion analyses employ the onset times, which are often affected by instrumental effects and the pre-existing background flux, leading to large uncertainties. We propose a new method here. Instead of using the peak or onset time, we apply the velocity dispersion analysis to the times that correspond to the rising phase of the fluxes that are a fraction, η, of the peak flux. We perform statistical analysis on selected events whose calculated path lengths have uncertainties smaller than 0.1 au. The mean and standard deviation, (μ, σ), of the calculated path lengths corresponding to η = 3/4, 1/2, and 1/3 of the peak flux is (1.17 au, 0.17 au), (1.11 au, 0.14 au), and (1.06 au, 0.15 au). The distribution of the calculated path lengths is also well fitted by a Gaussian distribution for the η = 3/4 and 1/3 cases. These results suggest that in these electron events the interplanetary magnetic field topology is close to the nominal Parker spiral, with little field line meandering. Our results have important implications for particles’ perpendicular diffusion.
Effects of Coronal Density and Magnetic Field Distributions on a Global Solar EUV Wave
Authors: Hu Huidong , Liu Ying D. , Zhu Bei , Peter Hardi , He Wen , Wang Rui , Yang Zhongwei 
Published: June 2019

Abstract
We investigate a global extreme-ultraviolet (EUV) wave associated with a coronal mass ejection (CME)-driven shock on 2017 September 10. The EUV wave is transmitted by north- and south-polar coronal holes (CHs), which is observed by the Solar Dynamics Observatory (SDO) and Solar Terrestrial Relations Observatory A (STEREO-A) from opposite sides of the Sun. We obtain key findings on how the EUV wave interacts with multiple coronal structures, and its connection with the CME-driven shock: (1) the transmitted EUV wave is still connected with the shock that is incurvated to the Sun, after the shock has reached the opposite side of the eruption; (2) the south CH transmitted EUV wave is accelerated inside an on-disk, low-density region with closed magnetic fields, which implies that an EUV wave can be accelerated in both open and closed magnetic field regions; (3) part of the primary EUV wavefront turns around a bright point (BP) with a bipolar magnetic structure when it approaches a dim, low-density filament channel near the BP; (4) the primary EUV wave is diffused and apparently halted near the boundaries of remote active regions (ARs) that are far from the eruption, and no obvious AR related secondary waves are detected; (5) the EUV wave extends to an unprecedented scale of ∼360° in latitudes, which is attributed to the polar CH transmission. These results provide insights into the effects of coronal density and magnetic field distributions on the evolution of an EUV wave, and into the connection between the EUV wave and the associated CME-driven shock.
GeV Observations of the Extended Pulsar Wind Nebulae Constrain the Pulsar Interpretations of the Cosmic-Ray Positron Excess
Authors: Xi Shao-Qiang , Liu Ruo-Yu , Huang Zhi-Qiu , Fang Kun , Wang Xiang-Yu 
Published: June 2019

Abstract
It has long been suggested that nearby pulsars within ∼1 kpc are the leading candidate of the 10–500 GeV cosmic-ray positron excess measured by PAMELA and other experiments. The recent measurement of the surface brightness profile of TeV nebulae surrounding Geminga and PSR B0656+14 by the High-Altitude Water Cherenkov Observatory (HAWC) suggests inefficient diffusion of particles from the sources, giving rise to a debate on the pulsar interpretation of the cosmic-ray positron excess. Here we argue that GeV observations provide more direct constraints on the positron density in the TeV nebulae in the energy range of 10–500 GeV and hence on the origin of the observed positron excess. Motivated by this, we search for GeV emission from the TeV nebulae with the Fermi Large Area Telescope (LAT). No spatially extended GeV emission is detected from these two TeV nebulae in the framework of two-zone diffusion spatial templates, suggesting a relatively low density of GeV electrons/positrons in the TeV nebulae. A joint modeling of the data from HAWC and Fermi-LAT disfavors Geminga and PSR B0656+14 as the dominant sources of the positron excess at ∼50–500 GeV for the usual Kolmogorov-type diffusion, while for an energy-independent diffusion, a dominant part of the positron excess contributed by them cannot be ruled out by the current data.
Modeling the Protoplanetary Disks of Two Brown Dwarfs in the Taurus Molecular Cloud
Authors: Rilinger Anneliese M. , Espaillat Catherine C. , Macías Enrique 
Published: June 2019

Abstract
Measuring the properties of protoplanetary disks around brown dwarfs (BDs) is central to understanding the formation of BDs and their planetary companions. We present modeling of CFHT Tau 4 and 2M0444, two BDs with protoplanetary disks in the Taurus Molecular Cloud. By combining modeling of the spectral energy distributions and Atacama Large Millimeter/submillimeter Array images, we obtain disk radii and masses for these objects; these parameters can be used to constrain BD formation and planet formation, respectively. We find that the disk around CFHT Tau 4 has a total mass of 0.42 M
Jup and a radius of 80 au; we find 2M0444's disk to have a mass of 2.05 M
Jup and a radius of 100 au. These radii are more consistent with those predicted by theoretical simulations of BD formation via undisturbed condensation from a mass reservoir than with those predicted by ejection from the formation region. Furthermore, the disk mass of 2M0444 suggests that planet formation may be possible in this disk, although the disk of CFHT Tau 4 is likely not massive enough to form planets. The disk properties measured here provide constraints to theoretical models of BD formation and the formation of their planetary companions.
Use of mathematical modeling to extend the scope of application for the procedure of measuring the mass of 235U in solid radioactive waste
Authors: Rykov Nikita S. , Bezhunov Gennady M. , Gorbachev Vyacheslav M. 
Published: June 2019

The known dependence of absolute efficiency on energy and space for particular measurement conditions is used to determine the mass (activity) of 235U in solid radioactive waste by gamma-spectrometric method. The ISOCS system makes it possible to avoid laborious and time-consuming calibration measurements using standard samples to obtain the absolute efficiency curve due to using the so-called characterized detector having a file with a set of efficiencies for various measurement geometries.
In many cases, the establishment of standard samples with parameters covering the 235U mass measurement range in the variation intervals of influencing factors, including density, non-uniformity, isotopic composition, geometry, etc., is very expensive and, most often, not feasible. With regard for this, a computational and experimental approach is used based on results obtained by Monte Carlo method using the MCNP code with variation of the key influencing parameters in a broad range.
Calculations were performed for detector-recorded spectra of gamma quanta from casks containing waste differing in the density of the cask content (the density was calculated with regard for the uranium contained in waste) – from 0.016 to 1 g/cm3, in the mass of uranium in waste – from 0.64 g to 2 kg, and in the matrix material – graphite, cellulose, quartz, cellulose with 20 % of iron dust.
Applicability boundaries have been defined for the developed procedure to measure uranium-containing waste in terms of the material matrix (~ 2.2 %) and its density (~ 10 %) and the contribution of the uranium mass uncertainty in the cask (5 % for nonporous matrices, 10 % for porous matrices) to the obtained result has been estimated.
Villes espagnoles et austérité : une histoire de longue durée
Authors: Vaz Céline 
Published: June 2019

Cet article vise à interroger la nouveauté de l’« urbanisme d’austérité » dans le cas des pays d’Europe du Sud et, précisément, de l’Espagne, en replaçant cette notion dans l’histoire plus globale et de plus long terme de l’État social et de l’autonomie des gouvernements locaux espagnols. Il s’agit aussi de montrer que la privatisation croissante de la production des espaces urbains et de la gestion urbaine, mise en relation dans les analyses récentes avec la réduction des dépenses publiques, n’est pas un phénomène neuf en Espagne. Le rôle des acteurs de marché dans la production de la ville, présenté comme un élément saillant des politiques d’austérité actuelles, caractérise la situation de l’Espagne durant la dictature franquiste (1939-1975).
Que reste-t-il du barrio dans une métropole contemporaine ? Habiter et s’approprier deux quartiers de Buenos Aires en mutation, Villa Urquiza et Villa del Parque
Authors: Martinet Gilles 
Published: June 2019

Villa Urquiza et Villa del Parque, barrios (quartiers) du péricentre de la ville de Buenos Aires lotis au mitan du vingtième siècle, sont des espaces résidentiels occupés principalement par les classes moyennes. Comme beaucoup d’autres barrios, ils furent longtemps caractérisés par leur vie sociale et économique locale, ainsi que par leur morphologie où prédominaient de façon quasi absolue les maisons individuelles. Depuis le milieu des années 2000, ces espaces connaissent une intense activité immobilière, qui a modifié radicalement leur physionomie, par la généralisation des immeubles d’habitation dans plusieurs zones. Les évolutions architecturales de ces espaces sont intimement liées aux mutations de la production de la ville, comme aux pratiques et représentations des leurs habitant.e.s. Les mobilités quotidiennes dans la métropole se font plus nombreuses et sinueuses, participant à l’émergence d’archipels de lieux – structurés par les pratiques différenciées des habitant.e.s – qui bouleversent la façon d'habiter le barrio et la ville. Plus profondément encore, ce sont les modalités d'appropriation du quartier qui se sont radicalement transformées : des pratiques aux représentations, les habitant.e.s semblent n'avoir plus véritablement prise sur la production des espaces où elles et ils résident.
Opérations de contextualisation et écriture de l’histoire littéraire : l’exemple de quelques écrits du XVII e siècle
Authors: Giavarini Laurence 
Published: June 2019

Dans cet article, on pose que la désignation d’un écrit comme littéraire est une opération de classement dans la littérature, un geste de contextualisation déterminé par les fins et les objectifs propres de l’histoire littéraire. Ce type de contextualisation a priori empêche de saisir les actions par lesquelles les écrits ont été situés en leur temps ou plus tard, dans la littérature. Penser l’historicité de la littérature, ce ne peut être à l’inverse qu’historiciser les gestes de contextualisation ou d’autocontextualisation qui ont permis de recevoir des écrits comme « littéraires ». Quelques exemples d’écrits du xvii e siècle, canonisés ou non, permettent d’examiner quelques aspects du problème de méthode ainsi posé.
Présences de l’objet de mémoire dans la capitale du XIX e siècle
Authors: Cuartas Pablo 
Published: June 2019

Quelle est la valeur des objets de mémoire ? Comment structurent-ils l’imaginaire d’une ville ? À travers une proposition d’une phénoménologie sociale, nous montrerons de quelle manière l’enracinement de la mémoire incarné dans l’objet, amène à une réflexion sur les formes d’habiter l’espace quotidien et les pratiques culturelles fondant aussi une analyse historiographique.
Motivations for choosing brick-and-mortar stores between urban commerce and shopping centers: the case of Logroño retail
Authors: Sierra-Murillo Yolanda , Pelegrín-Borondo Jorge , Olarte-Pascual Cristina , Medrano Natalia 
Published: June 2019

The aim of this work is to identify the reasons behind the choice of brick-and-mortar stores to make purchases and provide new evidence of the role that such establishments play in the omnichannel environment. An empirical study carried out in the city of Logroño (Spain) shows that utilitarian and hedonic motives are intertwined and differ according to age. Young people opt for shopping centers and the range of products and services they have to offer. Adults and elderly customers associate personal attention with shops located in the city center. The fundamental conclusion of the present work is that the establishments located in shopping centers and urban centers can coexist, each developing their own strengths. Both types of establishments provide interesting benefits for consumers who, in certain situations, opt for brick-and-mortar stores and value the offline shopping experience.
[Nesting of Golden Eagle (Aquila chrysaetos) at an exceptional altitude for the Italian Alps]
Authors: Sartirana Fabiano , Valfiorito Rudy 
Published: June 2019

[In the Province of Imperia (Liguria, Italy) the breeding population of Golden Eagle (Aquila chrysaetos) amounts to 8 territorial pairs, with a relative density of 4.6 pairs/1000 km2. Between the 12 known nesting sites, one nest is located at 380 m a.s.l.; this altitude might be regarded the lowest of the Prealps and Italian Alps. The local pair nested successfully in recent years.]

[Article in Italian]
[Waders and seabirds (Charadriiformes) nesting along the north-eastern Adriatic coastline (Veneto and Friuli-Venezia Giulia) in 2008-2014: abundance, trends and major conservation issues]
Authors: Scarton Francesco , Verza Emiliano , Guzzon Carlo , Utmar Paolo , Sgorlon Giacomo , Valle Roberto 
Published: June 2019

[In 2008-2014 wader and seabird nesting pairs were censused along the 220-km long coastline of the NE Adriatic Sea, in the Veneto and Friuli-Venezia Giulia regions (NE Italy). Fourteen species were regularly breeding, with an annual mean of 20,610 pairs (±1553, 1 SD). The most abundant species was the Yellow-legged Gull (about 13,400 pairs on average, 65% of the whole population of the study area), followed by the Common Tern (1670 pairs, 8.1%) and Common Redshank (1525 pairs, 7.4%). The whole population of waders and seabirds increased with an annual rate, estimated with the TRIM software, of +0.8%, with a greater increase (+4.3%) if the Yellow-legged Gull was not included. Twelve species were stable or increasing; only the yellow-legged gull (-1%) and the common redshank (-2.4%) were decreasing. The populations of several species exceed 10% of those estimated for the whole of Italy; those of the Eurasian Oystercatcher, Common Redshank and Sandwich Tern are among the most important in the whole Mediterranean. On average, about 8860 pairs (43%) nest in the Venice lagoon, 6,400 pairs (31%) in the Po Delta, 5100 pairs (25%) in the Friuli-Venezia Giulia lagoons. Among nesting habitats, semi-natural (such as the fish farms) and man-made sites (dredge islands) make each year about 70% of the nesting pairs. Saltmarsh islets host large numbers of Common Redshank and Sandwich Tern, while along the beach zone the only abundant species are the Yellow-legged Gull and the Eurasian Oystercatcher. The major conservation threats observed in the study area were the erosion of littoral islands, the uncontrolled occurrence of sunbathers along the beaches, the vegetation overgrowth at dredge islands, the increasing frequency of saltmarsh submersion by high tides, the strong fluctuations of water levels inside the fish farms.]
[Article in Italian]
Cómo comunicar la investigación desde la academia
Authors: Nieto Anderson Claudia , Aceituno Laura Andrea 
Published: June 2019

En el mundo de la ciencia existen algunos términos fascinantes que las autoras, como profesionales del área de la comunicación y el periodismo, procuran impulsar desde su quehacer diario. El principal término al que haremos referencia es comunicación científica, con la aclaración de que cada uno de los conceptos derivados está relacionado con la comunicación de la ciencia y cómo los hallazgos de esta última pueden ser transmitidos efectivamente a todos los públicos que sea necesario. Este artículo se propone como una exploración de estos conceptos que podría ser útil para iniciar conversaciones, debates y reflexiones en los espacios universitarios en que nos movemos.
Importance of the Toxicological Tests in the Application and Safety of Ozone Therapy
Authors: Menendez-Cepero Silvia , Zamora Zullyt , Hernandez Frank 
Published: June 2019

Until today, there is not any official registry of the different routes of systemic ozone therapy. With the aim to prove the safety of this therapy, several ways of ozone (O3) applications were evaluated, such as rectal insufflation (RI), major autohemotherapy (M-AHT) and intraperitoneal application (IP). For RI, some toxicological tests were performed such as: acute, sub-chronic, mutagenic (bone marrow chromosomic aberrations and micronucleus), teratogenic and irritation studies (at 40 mg/L and 10 mL during 15 days). For M-AHT, acute toxicological (in rats with 21, 47 and 64 mg/L and a volume of 2 mL with daily evaluation up to 15 days) and mutagenic (chromosomal aberration analysis, micronucleus assay and sister chromatid exchange test) studies were performed. For IP application, subchronic (O3 was administered during 15 days in mice at concentrations of 11, 29 and 35 mg/L and volumes of 80 mL/kg) and genotoxic (cytotoxic and clastogenic activity) studies were evaluated. All the toxicological studies performed for the O3 RI fulfilled the requirements established for an official registry (no deleterious effects were observed). However, more toxicological studies must be done with respect to M-AHT and IP O3 applications in order to prove the complete safety of these ways.
A Five Years Retrospective Study on Etiology and Clinical Analysis of Meningitis in St. Paul’s Hospital Millennium Medical College Pediatric Ward from 2012-2016
Authors: Ayele Ermias Getaneh , Bitew Zebenay Workneh , Assefa Kibir Temesgen , Tura Teshome Gishu , Mezemir Rahel 
Published: June 2019

Meningitis is the sever CNS pyogenic infections which primarily affects infants and children. Ethiopia is one of the countries where meningitis is endemic and frequent episodes of meningococcal epidemics are very common in the dry season (December to June).
The main purpose of this study was to identify determinants and clinical analysis of meningitis in pediatrics ward admitted to St.Paul’s hospital millennium medical college pediatrics wards from 2012-2016.
A retrospective study on etiology and clinical analysis of meningitis was conducted at the pediatric unit. The study population was all pediatric patients admitted with meningitis that were presented in ward during the study period. Those fulfilling the mentioned inclusion criteria were included. The data were collected using a structured format in September /2016.
From the study population 95 cases fulfilled the inclusion criteria and 64 & 31 of them were males and females, respectively making a male to female ratio of 2:1. The most significant seasonal variation was observed for N. meningitidis having high incidence in the 2nd quarter (April to June). In the dry season 18 cases were diagnosed using the culture results. Culture findings also revealed that S. pneumonia was one of the commonest causes of bacterial meningitis. The most common symptom was fever with high grade fever (>38oC) recorded in 84 (88.4%) of cases. Most (65.5 %). of clients were recovered from meningitis at the end of the treatment where as death was the second outcome with 17(20.2 %) cases ended up with death. Neurological or other complications were seen in 9(10.7 %) cases.