bluuebunny/crossref_metadata_2025 huggingface dataset:
Le polythéisme grec comme objet d’histoire
Authors: Pirenne-Delforge Vinciane
Published: June 2019

Le polythéisme grec n’est pas une simple juxtaposition de divinités, mais il est fait de leurs interactions à différentes échelles – locale, régionale, panhellénique. De précieuses moissons documentaires – combinant sources littéraires, épigraphiques, archéologiques, iconographiques – en ont profondément renouvelé l’étude et l’ont constitué en objet pertinent pour comprendre les sociétés anciennes dans une perspective tant historique qu’anthropologique. La religion grecque étant profondément imbriquée dans des domaines où nous ne l’attendons pas, la convoquer permet d’enrichir la compréhension du monde grec antique.
Les nouvelles stratégies d’innovation des firmes françaises de plasturgie
Authors: Debrand Dorian
Published: June 2019

Ce texte propose une étude des comportements innovants des firmes françaises de plasturgie en combinant l’approche évolutionniste de la firme et les apports de la littérature sur les barrières à l’innovation. En accord avec ce cadre théorique et à partir de l’exploitation de 24 entretiens approfondis, nous proposons une nouvelle typologie des stratégies d’innovation des firmes françaises de plasturgie. Nous montrons que ces firmes tendent dans leur majorité à activer leurs compétences dynamiques pour adopter des stratégies et devenir de plus en plus indépendantes et survivre dans un environnement incertain caractérisé principalement par une position asymétrique avec les clients/donneurs d’ordres et une forte concurrence internationale. C’est grâce aux compétences spécifiques et à l’intensité de l’innovation développée que les firmes de plasturgie peuvent retrouver des marges de manœuvre. Dans le même temps, la mise en œuvre de stratégies d’innovation entraîne l’apparition de barrières à l’innovation.Classification JEL : L21, L24, L52, L69, O32, O33.
Retracted: Development of Bulk Metallic Glass Matrix Composites (BMGMC) by Additive Manufacturing: Modelling and Simulation – A Review: Part A
Authors: Rafique Muhammad Musaddique Ali , Niezgoda Stephen , Brandt Milan
Published: June 2019

Bulk metallic glasses (BMGs) and their composites (BMGMC) have emerged as competitive materials for structural engineering applications exhibiting superior tensile strength, hardness along with very high elastic strain limit. However, they suffer from a lack of ductility and subsequent low toughness due to the inherent brittleness of the glassy structure which render them to failure without appreciable yielding owing to mechanisms of rapid movement of shear bands all throughout the volume of the material. This severely limits their use in fabricating structural and machinery parts. Various mechanisms have been proposed to counter this effect. Introduction of secondary ductile phase in the form ofin-situnucleating and growing dendrites from melt during solidification have proved out to be best solution of this problem. Nucleation and growth of these ductile phases have been extensively studied over the last 16 years since their introduction for the first time in Zr-based BMGMC by Prof. Johnson at Caltech. Data about almost all types of phases appearing in different systems have been successfully reported. However, there is very little information available about the precise mechanism underlying their nucleation and growth during solidification in a copper mould during conventional vacuum casting and melt pool of additively manufactured parts. Various routes have been proposed to study this including experiments in microgravity, levitation in synchrotron light and modelling and simulation. In this report consisting of two parts which is a preamble of author’s PhD Project, a concise review about evolution of microstructure in BMGMC during additive manufacturing have been presented with the aim to address fundamental problem of lack in ductility along with prediction of grain size and phase evolution with the help of advanced modelling and simulation techniques. It has been systematically proposed that 2 and 3 dimensional cellular automaton method combined with finite element (CAFE) tools programmed on MATLAB® and simulated on Ansys® would best be able to describe this phenomenon in most efficient way. Present part consists of general introduction of bulk metallic glass matrix composites (BMGMC), problem of lack of ductility in them, measures to counter it, success stories and their additive manufacturing.
Trenchless Sewer Rehabilitation Methods and Solving Diversity of Cured Sleeves Thickness
Authors: Majerová Jana , Hodul Jakub , Drochytka Rostislav
Published: June 2019

For the rehabilitation and renovation of sewerage and gutter networks, different methods and technologies have been introduced over the last half-century. The trenchless technologies are showing the greatest development. They are promoted for reasons of environmental friendliness, they do not restrict the space in the place of renovation and the implementation is fast. The paper focuses on specific material starting points for the use of trenchless methods. Trenchless methods do not generate waste from original pipelines. New pipes are installed in the existing pipeline, or a new pipeline pushes the old profile into the surrounding area. However, the new pipeline is not accessible for the traditional methodology of result control and product performance verification. Particularly for Cured-in-Place-Pipe (CIPP) methods, it is difficult to determine representative quantities for key features such as the thickness of the sanitary insets (sleeves) after curing, and it follows from practice that the measurements should be performed with a special spike gauge. CIPP products achieve all the final properties through the installation process in the existing pipeline. Simulation on semi-operative polygons is increasingly being used for research and verification of suitable representatives. Authors of the article began to address this issue in research, in collaboration with the company WOMBAT, s.r.o. when investigating the higher resistance of CIPP lining.
Silicate Sprayed Mixture Based on Secondary Raw Materials
Authors: Figala Petr , Drochytka Rostislav , Hermann Radek , Kolisko Jiří
Published: June 2019

This paper studies the fundamental research and development of sprayed cement-based mixture designed to withstand the chemically aggressive conditions. The aim of this paper is to verify the possibilities of usage of suitable secondary raw materials as a substitution of a binder and filler of the original mixture while preserving or improving the physical-mechanical properties. In this part of the research was studied the possibility to substitute the binder in rate of 20-60 wt.% by high temperature fly ash and the whole filler by foundry sand and slag. Test samples were made from nine recipes, in which was monitored the influence of secondary raw materials on the compressive strength and the water absorption after 28 days of curing. The results of this paper show, it is possible to successfully substitute part of the binder by high temperature fly ash and the filler wholly by foundry sand in the sprayed mixture. These optimized recipes showed positive influence mainly in the long-term on mechanical properties.
Changes in the Crystal Structure of Cement Mortars Subjected to a High Temperature
Authors: Ratajczak Maria , Babiak Michał , Kulczewski Piotr
Published: June 2019

During the fire, structures of a building are exposed to the effect of a high temperature. As a result, the strength parameters and physical properties of concretes and cement mortars undergo change. Their range depends on the time and temperature of the fire. Describing the changes of the internal structure of concretes and mortars resulting from a fire is important in the fire diagnostics of the structures. The paper presents the results of an original research project, within which there was an attempt to relate changes in mechanical properties of the cement mortars with changes in the crystal structure of cement paste. For this purpose, the authors prepared cement prisms, which were heated at various temperatures that occur during a fire after 28 days of their curing. Then, the samples were subjected to compressive strength tests and tests of a structure and a phase composition using an electron scanning microscope. Scanning microscopy is a precious research method that allows observing surfaces of various materials with magnifications from x50 to even x1000000 at a very big sharpness depth. The tests conducted by the authors showed that the effect of fire and of the gradient of high temperatures on the executed samples causes the deterioration of the cement paste in the form of changes in physico-mechanical properties and in its internal structure. As the temperature increases, the compressive strength of the paste decreases gradually and proportionally. The SEM analysis also showed that the change in the physical parameters of the cement paste is reflected in its phase composition.
Monastic Water Systems
Authors: Burgetová Eva
Published: June 2019

The unique water systems of the Baroque monasteries are shown and rehabilitation of historic structures are analysed. In historical buildings, it is desirable within the investigation to identify, properly understand and restore the frequently faulty or damaged original ventilation or drainage systems, which ingeniously took advantage of many-year experience of traditional building. The understanding of the original or older solution, its technical parameters and performance is the first step towards restoration and reliability of the buildings.
Influence of Wood Mineralization on the Thermal Degradation of Material
Authors: Majstríková Tereza , Mec Pavel , Sviderová Eliška
Published: June 2019

Wood is preferably used in civil engineering for load bearing structures and facing elements. However, its disadvantage is low resistance to degradation factors, even when exposed to high temperature. Mineralization of wood matrix, for example by organosilanes, is one possibility of increasing the durability against weathering and against water exposition. In this work, the influence of the mentioned mineralization substances on the thermal degradation of solid wood is verified by means of thermal analysis.
Recycling of Printed Circuit Boards Employing Supercritical Carbon Dioxide
Authors: Egerer Kai , Brandl Florian , Golzari Nahal , Beuermann Sabine
Published: June 2019

Printed circuit boards are currently coated with Br-containing epoxy resins. With respect to recycling of the material removal of the halogen is important. Moreover, it appears important to test whether recycling of the coating is feasible. The resin from circuit board reference material was extracted with extraction media containing supercritical carbon dioxide. It is shown that ternary mixtures containing 2-propanol and water allow for the complete removal of the coating. In contrast to the original material the degraded coating is soluble in organic solvents and size-exclusion chromatograpy indicates the formation of very regular fragments.
Cues to Greater Recycling Efficiency - Characterization of a Crushed Mobile Phone by Mineral Liberation Analysis (MLA)
Authors: Sandmann Dirk , Jäckel Hans Georg , Gutzmer Jens
Published: June 2019

In the year 2016 alone, more than 1.35 billion smartphones were manufactured globally. These smartphones contain up to 60 different chemical elements and the summarized metal weight of the 2016 production may have well exceeded 50,000 metric tons. At present, most elements contained in this very complex “mixture” represented by a smartphone have recycling rates well below 50%, and the recycling rates of rare earths, indium, tantalum or gallium are even below 1%. The major challenge of mobile phone recycling is the complex composition of the devices made of many individual components – and the lack of transparent information as to the composition of these components. This is aggravated by the fact that many elements occur in traces only and / or are located in highly complex material composites. To enable more effective recycling of mobile phones, it is thus imperative to characterize the constituent components, the presence of elements in it, as well as their behavior during comminution. In a pilot study, a Nokia mobile phone Model 5228 Type RM-625, crushed with a granulator UG300, was examined by Mineral Liberation Analysis. The analysis of three particle size fractions of the comminuted material was carried out in an automated measurement mode with a grid of energy-dispersive X-ray spectra. A total of 130 different phases were detected during this analysis. More than 100 of these phases occur at levels <1% by weight. This strongly illustrates the very complex composition of smartphones. A comparison of the modal content of the three particle size fractions showed good liberation of certain components and an enrichment of some components in specific fractions. These observations reveal the potential to successfully separate different technical components from one another with the goal to increase the resource efficiency of the recycling process.
Coexpression of YY1 Is Required to Elaborate the Effector Functions Controlled by PLZF in NKT Cells
Authors: Darcy Patrick W. , Jin Kangxin , Osorio Louis , Denzin Lisa K. , Sant’Angelo Derek B.
Published: June 2019

The promyelocytic leukemia zinc-finger transcription factor (PLZF) is essential for nearly all of the unique, innate-like functions and characteristics of NKT cells. It is not known, however, if the activity of PLZF is regulated by other factors. In this article, we show that the function of PLZF is completely dependent on the transcription factor Yin Yang 1 (YY1). Mouse NKT cells expressing wild-type levels of PLZF, but deficient for YY1, had developmental defects, lost their characteristic “preformed” mRNA for cytokines, and failed to produce cytokine protein upon primary activation. Immunoprecipitation experiments showed that YY1 and PLZF were coassociated. Taken together, these biochemical and genetic data show that the broadly expressed transcription factor, YY1, is required for the cell-specific “master regulator” functions of PLZF.
Morpho-physiological effect of selenium on salinity-stressed wheat (Triticum aestivum L.)
Authors: Agbolade James Oludare , David Oyinade , Ajiboye Abiodun , Kioko Joseph , Jolayemi Okanlawon , Olawuni Idowu , Ojo Mercy , Akomolafe Gbenga , Adekoya Modinat , Komolafe Ronke
Published: June 2019

Wheat (Triticum aestivum) is an important grains plant that can sustain food security and holds high nutritional values to the benefit of mankind. Activities of salinity in arid and semi-arid region have drastically reduced the production of wheat grains. Selenium (Se) is a micronutrient required by plants in small concentration to aid their growth. This study was aimed at identifying impact of Se on salinity-stressed wheat plants. Wheat seeds were soaked for eight hours in 0, 50, 100 and 150 mg/L Selenite concentrations and five sterilize-treated seeds were sown in 5 kg quantity of soil. This was subjected to 0, 100 and 200 mM of Sodium chloride (NaCl) concentration, respectively. The study revealed that Se increased production/expression of superoxide dismutase and catalase enzymes under salinity stress, thus growth of wheat plants was improved. Although the effects of Se on the wheat plants were concentration-based, nevertheless low lipid peroxidation and plant growth at 150 mg/L of Se were observed. Toxicity of Se to wheat plant could occur when there is no salinity stress. Therefore, farmers are encouraged to prime wheat seeds with 150 mg/L Se when cultivating saline soils.
Exponential and sub-exponential stability times for the NLS on the circle
Authors: Biasco Luca , Massetti Jessica Elisa , Procesi Michela
Published: June 2019

In this note we study stability times for a family of parameter dependent nonlinear Schrödinger equations on the circle, close to the origin. Imposing a suitable Diophantine condition (first introduced by Bourgain), we state a rather flexible Birkho¤ Normal Form theorem, which implies, e.g., exponential and sub-exponential time estimates in the Sobolev and Gevrey class respectively. Complete proofs are given elsewhere (see [BMP18]).
Sources and formation of carbonaceous aerosols in Xi'an, China: primary emissions and secondary formation constrained by radiocarbon
Authors: Ni Haiyan , Huang Ru-Jin , Cao Junji , Guo Jie , Deng Haoyue , Dusek Ulrike
Published: June 2019

Abstract. To investigate the sources and formation mechanisms of carbonaceous aerosols, a major contributor to severe particulate air pollution, radiocarbon (14C) measurements were conducted on aerosols sampled from November 2015 to November 2016 in Xi'an, China. Based on the 14C content in elemental carbon (EC), organic carbon (OC) and water-insoluble OC (WIOC), contributions of major sources to carbonaceous aerosols are estimated over a whole seasonal cycle: primary and secondary fossil sources, primary biomass burning, and other non-fossil carbon formed mainly from secondary processes. Primary fossil sources of EC were further sub-divided into coal and liquid fossil fuel combustion by complementing 14C data with stable carbon isotopic signatures. The dominant EC source was liquid fossil fuel combustion (i.e., vehicle emissions), accounting for 64 % (median; 45–74 %, interquartile range) of EC in autumn, 60 % (41–72 %) in summer, 53 % (33–69 %) in spring and 46 % (29–59 %) in winter, respectively. An increased contribution from biomass burning to EC was observed in winter (~ 28 %) compared to other seasons (warm period; ~ 15 %). In winter, coal combustion (~ 25 %) and biomass burning equally contributed to EC, whereas in the warm period, coal combustion accounted for a larger fraction of EC than biomass burning. The relative contribution of fossil sources to OC was consistently lower than that to EC, with an annual average of 47 ± 4 %. Non-fossil OC of secondary origin was an important contributor to total OC (35 ± 4%) and accounted for more than half of non-fossil OC (67 ± 6%) throughout the year. Secondary fossil OC (SOCfossil) concentrations were higher than primary fossil OC (POCfossil) concentrations in winter, but lower than POCfossil in the warm period. Fossil WIOC and water-souble OC (WSOC) have been widely used as proxies for POCfossil and SOCfossil, respectively. This assumption was evaluated by (1) comparing their mass concentrations with POCfossil and SOCfossil, and (2) comparing ratios of fossil WIOC to fossil EC to typical primary OC to EC ratios from fossil sources including both coal combustion and vehicle emissions. The results suggest that fossil WIOC and fossil WSOC are probably a better approximation for primary and secondary fossil OC, respectively, than POCfossil and SOCfossil estimated using the EC tracer method.
Near-ice hydrographic data from Seaglider missions in the western Greenland Sea in summer 2014 and 2015
Authors: Latarius Katrin , Schauer Ursula , Wisotzki Andreas
Published: June 2019

Abstract. During summer 2014 and summer 2015 two autonomous Seagliders were
operated over several months close to the ice edge of the East Greenland
Current to capture the near-surface freshwater distribution in the western
Greenland Sea. The mission in 2015 included an excursion onto the East
Greenland Shelf into the Norske Trough. Temperature, salinity and drift data
were obtained in the upper 500 to 1000 m with high spatial resolution. The data set presented here gives the opportunity to analyze the freshwater
distribution and possible sources for two different summer situations.
During summer 2014 the ice retreat at the rim of the Greenland Sea Gyre was
only marginal. The Seagliders were never able to reach the shelf break nor
regions where the ice just melted. During summer 2015 the ice retreat was
clearly visible. Finally, ice was present only on the shallow shelves. The
Seaglider crossed regions with recent ice melt and was even able to reach
the entrance of the Norske Trough. The data processing for these glider measurements was conducted at Alfred Wegener Institute (AWI). The
first part consists of the Seaglider Toolbox from the University of Each
Anglia; the second was exclusively composed for the data from the Greenland
Sea. The final hydrographic, position and drift data sets can be downloaded from
https://doi.org/10.1594/PANGAEA.893896 (Latarius et
al., 2018).
Soil moisture and matric potential – An open field comparison ofsensor systems
Authors: Jackisch Conrad , Germer Kai , Graeff Thomas , Andrä Ines , Schulz Katrin , Schiedung Marcus , Haller-Jans Jaqueline , Schneider Jonas , Jaquemotte Julia , Helmer Philipp , Lotz Leander , Bauer Andreas , Hahn Irene , Šanda Martin , Kumpan Monika , Dorner Johann , de Rooij Gerrit , Wessel-Bothe Stefan , Kottmann Lorenz , Schittenhelm Siegfried , Durner Wolfgang
Published: June 2019

Abstract. Soil water content and matric potential are central hydrological state variables. A large variety of automated probesand sensor systems for state monitoring exists and is frequently applied. Most studies solely rely on the calibration by themanufacturers. Until now, there is no commonly agreed calibration procedure. Moreover, several opinions about the capabilitiesand reliabilities of specific sensing methods or sensor systems exist and compete. A consortium of several institutions conducted a comparison study of currently available sensor systems for soil water5content and matric potential under field conditions. All probes have been installed in 0.2 m depth below surface following best practice procedure. We present the setup and the recorded data of 58 probes of 15 different systems measuring soil moisture and further 50 probes of 14 different systems for matric potential. The measuring campaign was conducted in the growing period of 2016. The monitoring data, results from pedophysical analyses of the soil and laboratory reference measurements for calibration are published in Jackisch et al. (2018, https://doi.org/10.1594/PANGAEA.892319).
Extreme Sea Levels in the Baltic Sea under Climate Change Scenarios. Part 1: Model Validation and Sensitivity
Authors: Dieterich Christian , Gröger Matthias , Arneborg Lars , Andersson Helén C.
Published: June 2019

Abstract. An ensemble of regional climate change scenarios for the Baltic Sea is validated and analyzed with respect to extreme sea levels (ESLs) in the recent past. The ERA40 reanalysis and five Coupled Model Intercomparison Project Phase 5 (CMIP5) global general circulation models (GCMs) have been downscaled with the coupled atmosphere-ice-ocean model RCA4-NEMO. Validation of 100-year return levels against observational estimates along the Swedish coast shows that the model estimates are within the 95 % confidence limits for most stations, except those on the west coast. The ensemble mean 100-year return levels turns out to be the best estimator with biases of less than 10 cm. The ensemble spread includes the 100-year return levels based on observations. A series of sensitivity studies explores how the choice of different parameterizations, open boundary conditions and atmospheric forcing affects the estimates of 100-year return levels. A small ensemble of different regional climate models (RCMs) forced with ERA40 shows the highest uncertainty in ESLs in the southwestern Baltic Sea and in the northeastern part of the Bothnian Bay. Also the Skagerrak, Gulf of Finland and Gulf of Riga are sensitive to the choice of the RCM. A second ensemble of one RCM forced with different GCMs uncovers a lower sensitivity of ESLs against the variance introduced by different GCMs. The uncertainty in the estimates of 100-year return levels introduced by GCMs ranges from 20 cm to 40 cm at different stations. It is of similar size as the 95 % confidence limits of 100-year return levels from observational records.
Dramaturg Interview: Soyica Colbert on Two Trains Running
Authors: Walker Melonnie
Published: June 2019

An interview with Soyica Colbert, dramaturg for Arena Stage's (Washington, D.C.) production of Two Trains Running.
Dramaturg Interview: Martine Kei Green-Rogers on Radio Golf
Authors: Walker Melonnie
Published: June 2019

An interview with Martine Kei Green-Rogers, dramaturg for Court Theater's (Chicago) production of Radio Golf.
A Front Row Seat: Sala Udin Remembers August Wilson
Authors: Bell Christopher
Published: June 2019

Lifelong friend of August Wilson, Sala Udin, shares his memories of knowing the playwright from their childhood in the Hill District until the dramatist's death in 2005. Written as a narrative, Udin's account of his friendship with August Wilson offers a unique glimpse into Wilson's development as a writer and a poignant look into the playwright's affection for his hometown of Pittsburgh, Pennsylvania.
Stage Review of Gem of the Ocean
Authors: Ridley Leticia
Published: June 2019

A review of August Wilson's Gem of the Ocean, staged at the Round House Theatre in Bethesda, Maryland, from November 28-December 30, 2018.
Theaters That Have Completed August Wilson's American Century Cycle
Authors: Rawson Christopher
Published: June 2019

Theaters That Have Completed August Wilson's American Century Cycle
Welcome to the Inaugural Edition of the August Wilson Journal
Authors: Downing Michael J.
Published: June 2019

A welcome to the inaugural edition of the August Wilson Journal, written by the editor.
Oficios y conversos ante la Germanía de Valencia (1458-1519)
Authors: Narbona Vizcaíno Rafael
Published: June 2019

Este artículo presenta nuevos datos sobre la incorporación de los conversos de judío en la sociedad urbana valenciana en el período comprendido entre 1458 y 1519, continuación de otros trabajos anteriores. El análisis de la documentación de las corporaciones de oficios y de la municipalidad reitera la inserción de la minoría en las estructuras de sociabilidad ciudadana, según se comprueba con análisis prosopográfico e historias de vida. La atestada presencia de los conversos en las actividades profesionales y en la vida pública, rastreada en los censos elaborados con distintos fines, también hizo posible su inserción en el movimiento popular de la Germanía de Valencia.
Efectos de la política monetaria del Banco Central Europeo sobre la desigualdad
Authors: Chacón Piñero Lorena
Published: June 2019

La política monetaria puede alterar de forma heterogénea el bienestar individual y la desigualdad, incluso aunque consiga alcanzar sus principales objetivos, como la estabilidad de precios. Debido a que la desigualdad es un problema que está aumentando a nivel internacional, en este artículo se estudia cómo y a través de qué canales la política monetaria puede influir sobre ésta. De este modo, los efectos se pueden producir a través de las variaciones en los tipos de interés y del crecimiento del ingreso, entre otras variables que son comprendidas en el mecanismo de transmisión de la política monetaria.
Minding the gap?: Mechanisms underlying resumption in English
Authors: Chacón Dustin A.
Published: June 2019

In processing filler-gap dependencies, comprehenders quickly postulate gaps in syntactically licensed positions, but not in syntactic islands. This suggests that comprehenders can accurately use syntactic constraints to guide processing. However, resumptive pronouns appear to challenge this generalization. Resumption is ungrammatical in English. Nevertheless, they appear to immediately allow resolution of a filler dependency in syntactic islands (Hofmeister & Norcliffe 2013). I resolve this tension by arguing that pronouns are analyzed as resumptive when typical filler-gap dependency processing fails. I argue that processing a filler-gap dependency requires anticipatorily building a gapped structure. However, as further linguistic material is processed, this representation degrades in memory. Resumption facilitates processing by triggering a reference dependency, which allows the comprehender to recover a coherent interpretation of the sentence. This predicts that the accessibility of filler NP as a referent for a pronoun, length, and processing difficulty all contribute to the acceptability of resumption. I present the results of four acceptability judgment studies that support this claim. I also introduce a novel experimental paradigm, in which participants’ working memory capacity is taxed while processing a sentence. This increase in processing strain decreases sensitivity to ungrammatical filler dependencies. I argue that this partially explains the acceptability of resumption in syntactic island contexts, which are likely resource-intensive.
تأثير المكتبات الجامعية في الإعتماد المؤسسي
Authors: حسانة محيي الدين أ.د. , عواد محمود
Published: June 2019

مستخلص

إن الجامعات في العالم حالياً في سباق مع الزمن للحصول على الإعتماد المؤسسي والإعتماد الأكاديمي، حيث يعتبر الإعتماد الفيصل في تقرير مستوى الجامعة وطلابها. سوف تتناول هذه الدراسة أهمية الإعتماد بالنسبة للجامعات، مؤسسات الإعتماد الدولية، العناصر والشروط المطلوبة من الجامعات للحصول على الإعتماد المؤسسي والتي تعتبر في هذا الإطار المكتبة الجامعية إحدى أهم الشروط للحصول على الإعتماد.

وعليه، سوف يتم أيضاً تناول جامعة بيروت العربية كدراسة حالة، حيث أنها حصلت على الإعتماد المؤسسي في العام2015 من مؤسسة الإعتماد الأكاديمي الدولية الألمانيةFIBAA ، وسوف يتم عرض الخطوات كافة التي سارت بها المكتبة لمساعدة مؤسستها الأم جامعة بيروت العربية للوصول إلى الإعتماد.
منصة البيانات المفتوحة وتفعيلها عبر بوابات الحكومة الإلكترونية لدول مجلس التعاون الخليجي: دراسة مقارنة
Authors: بنت محمد عسيري إيمان , بنت داخل السريحي ۲ منى
Published: June 2019

ملخص:

هدفت الدراسة إلى رصد وتحليل واقع إتاحة البيانات المفتوحة عبر بوابات الحكومة الإلكترونية لعينة من دول مجلس التعاون الخليجي ومقارنة مدى تفعيل البوابات الحكومية للبيانات الحكومية المفتوحة بينها والوقوف على الفوائد التي يمكن أن تعود على الجهات الحكومية والمواطنين نتيجة تبني ممارسات البيانات المفتوحة.

تم استخدام المنهج الوصفي بأسلوب تحليل المحتوى للتعرف على خصائص صفحات البيانات المفتوحة على البوابات كما استُخدم المنهج المقارن للمقارنة بين البوابات الحكومية للدول. ولأغراض جمع البيانات، تم استخدام قائمة المراجعة والملاحظة المباشرة لجمع البيانات.

ومن نتائج الدراسة حصول بوابة الإمارات على المركز الأول من حيث درجة الاكتمال بين بوابات دول المجلس المختارة، تلتها سلطنة عمان ثم البحرين فالسعودية في حين احتلت بوابة الكويت المركز الأخير من حيث درجة الاكتمال، إن إتاحة البوابات الحكومية الخليجية البيانات المفتوحة للمواطنين يعزز حقهم في المعرفة والحصول على المعلومات، واستخدامها، ومشاركتها. إن جميع بوابات البيانات الحكومية المفتوحة لدول المجلس تحتاج إلى مزيد من التطوير بدرجات متفاوتة حيث لا توجد بوابة كاملة؛ فكل بوابة تعاني من جوانب قصور مختلفة في عدد من المحاور.

ومن أبرز التوصيات أن تقوم البوابات الحكومية للبيانات المفتوحة في دول المجلس بحث المواطنين، والجهات الحكومية، والقطاع الخاص على استخدام البيانات المفتوحة ونشرها من خلال التعريف بها والتوعية بأهميتها وما تحققه من فوائد لجميع الأطراف عبر مواقعها المختلفة ومن خلال عقد الندوات وورش العمل، وأن تضع الحكومات استراتيجية واضحة ومعلنة للبيانات الحكومية المفتوحة، وأن تتيح البوابات الحكومية للبيانات المفتوحة جميع ملفاتها في صيغ مفتوحة يمكن معالجتها بواسطة جميع التطبيقات الحالية.
البيانات الضخمة واتخاذ القرار في جامعة الملك سعود: دراسة تقييمية لنظام اتقان
Authors: ذيب الأكلبي د.علي بن
Published: June 2019

ملخص:

تسعى هذه الدراسة إلى تسليط الضوء على أهمية البيانات الضخمة في دعم اتخاذ القرار، ودراسة تقييمية لنظام “اتقان” من خلال واجهة الاستخدام و الدليل التعريفي للنظام في محاولة للخروج بنتائج تساهم في تطوير تطبيقات النظام بما يحقق القدرة على تحليل البيانات الضخمة بكفاءة تساند متخذ القرار في الجامعة.

أما المنهج المستخدم في الدراسة فهو دراسة تقييمية باستخدام المنهج الوصفي التحليلي من خلال الدراسات الوثائقية إضافة إلى تقييم نظام “اتقان”.

وقدمت الدراسة مجموعة من النماذج التنبؤية التي يمكن الاستفادة منها في تطوير الجانب التطبيقي لوظائف نظام “اتقان” ومحاكاتها لمساندة اتخاذ القرار في جامعة الملك سعود، وقد اوصت الدراسة بعدة توصيات من أهمها إجراء الدراسات الدورية التي تتناول مستجدات تحليل البيانات الضخمة، والعمل على تطوير قدرات نظام “اتقان” البحثية ليضاهي محركات البحث الدلالية وإدراج المزيد من النماذج التنبؤية التي تساعد النظام على إدارة البيانات الضخمة بكامل التفاصيل التي تدعم اتخاذ القرار في الجامعة.
الأدوار الجديدة لأخصائي المعلومات للتعامل مع البيانات الضخمة
Authors: الطيب د/ زينب بن , الرياعي د/ سليمان بن إبراهيم
Published: June 2019

ملخص:

يقوم قطاع المكتبات والمعلومات أساسًا على المعلومات والمعرفة، فأي تغير أو تحول يمس هذه الأخيرة لا بد أن يشمل بدوره المهنة المكتبية بمؤسساتها والعاملين فيها، وما تحوُّل العالم اليوم إلى “عالم البيانات” القائم على “البيانات الضخمة” إلاّ أحد التحولات التي تُحدث تأثيرات أخرى جديدة ومستحدثة على وظائف ومهام أخصائيي المعلومات التي يظهر تأثيرها عليهم بداية باستحداث تسمية جديدة لهم وهي “عالِم البيانات” بعدما كان يلقب بأخصائي المعلومات وأخصائي المعرفة، فما يا ترى باقي التغييرات والتأثيرات التي تحملها البيانات الضخمة لأخصائي المعلومات؟

تأسيسًا لما سبق، تأتي هذه الدراسة للكشف والتعرف على أهم انعكاسات “البيانات الضخمة” على المهنة المكتبية عامة، وجوانب تأثيراتها بوجه محدد على المتخصصين من حيث الأدوار، والوظائف، و المهارات، والكفاءات التي يجب على هؤلاء امتلاكها للتمكن من إدارة تداعيات هذا التحول الجديد والتعامل بكفاءة معها.
معايير ضبط الجودة في المكتبات الأكاديمية
Authors: سعود البداعية شيماءبنت , العوفي علي بن سيف , الحجي خلفان بن زهران
Published: June 2019

ملخص

هدفت الدراسة إلى التعرُّف على مدى تطبيق معايير ضبط الجودة في المكتبات الأكاديمية بجامعة السلطان قابوس، وذلك استنادًا على معايير مكتبات التعليم العالي ومؤشرات «دوبي» (Dube)، إضافةً إلى الكشف عن الصعوبات التي تحد من تطبيق تلك المعايير. واعتمدت الدراسة على المنهج المزجي، واستُخدمت الاستبانة كأداة لجمع البيانات الكمية من مجتمع الدراسة البالغ عددهم 109 موظفين، بينما استُخدمت المقابلة الشفوية شبه المقيدة، كأداة تكميلية للحصول على بيانات مفصلة ومتعمقة في موضوع الدراسة. وبلغ عدد الاستبانات الصالحة للتحليل 85 استبانة، في حين استُخدم التحليل الموضوعي (Thematic Analysis) لتحليل البيانات النوعية. ومن أهم النتائج التي توصلت إليها الدراسة ما يلي:
دور الجمعيات والاتحادات المهنية في تطبيق معايير الاعتماد الأكاديمي لبرامج علوم المكتبات و المعلومات: دراسة تحليلية في ضوء المعايير الدولية و العربية
Authors: العليمي ثروت , El.Olimy Tharwat
Published: June 2019

المستخلص: لقد ألقت الجودة و الاعتماد الأكاديمي أعباءً جديدة على البرامج الأكاديمية التخصصية بعامة، وبرامج علوم المكتبات والمعلومات بخاصة فيما يتصل بمحاولة مواكبتها مفاهيم الجودة وتلبية معاييرها و تطبيق نظمها وإجراءاتها وآلياتها، و من ثم تسعي الدراسة الحالية لاستكشاف مفاهيم الجودة والاعتماد الأكاديمي و استجلاء دور الجمعيات والاتحادات المهنية في تطبيق معايير الجودة و الاعتماد الاكاديمي لبرامج المكتبات والمعلومات وتوصيف وتحليل لمعايير الاعتماد لبرامج المكتبات و دراسات المعلومات على المستويين الدولي و العربي، وخلصت الدراسة إلى عدة نتائج أهمها أن على أقسام المكتبات والمعلومات أن تعيد النظر في برامجها في ضوء معايير جديدة للاعتماد والجودة وانه يجب تكوين قنوات اتصال بين أقسام المكتبات والطلبة للتواصل المستمر.
تقويم برنامج الماجستير في قسم علم المكتبات والمعلومات في الجامعة الأردنية في ضوء معايير جمعية المكتبات الأمريكية (ALA)
Authors: أحمد اسماعيل الشوابكة د.يونس
Published: June 2019

المستخلص

هدفت هذه الدراسة إلى تقويم برنامج الماجستير في علم المكتبات والمعلومات في الجامعة الأردنية في ضوء معايير جمعية المكتبات الأمريكية (ALA)، والكشف عن درجة توافر ودرجة جودة تطبيق هذه المعايير في البرنامج، من خلال مقارنة مقومات البرنامج الحالي بمعايير جمعية المكتبات الأمريكية (ALA) الخمسة: التخطيط المنهجي، والمنهاج الدراسي، وأعضاء هيئة التدريس، والطلبة، والإدارة والتمويل والمصادر، وقد أظهرت النتائج أن درجة توافر المعيار الثالث «أعضاء هيئة التدريس» ودرجة جودة تطبيقه في البرنامج كانت مرتفعة، في حين كانت كانت درجة توافر بقية المعايير ودرجة جودة تطبيقها في البرنامج متوسطة، وقد قدمت الدراسة مجموعة من التوصيات أهمها: ضرورة الاهتمام بعناصر التخطيط الرئيسة ولا سيما رؤية البرنامج ورسالته وأهدافه ونتاجات تعلم الطلبة، وزيادة الاهتمام بسياسات التقويم وإجراءاته وأدلته الموثقة.
دور البيانات الضخمة في دعم التنمية المستدامة بالدول العربية
Authors: مقناني د.صبرينة , شبيلة أ.مقدم
Published: June 2019

ملخص:

شهد العالم في السنوات الماضية انفجارا في كمية البيانات الرقمية المتاحة عبر الاقمار الصناعية ومختلف قنوات التواصل. ونظرا لثورة الرقمنة التي نشطت بفعل أجهزة ذات كفاءة عالية وسعر منخفض، ارتفع حجم البيانات المتاحة عبر العالم، أشار إليه المتخصصون بطوفان بيانات سمي بــالبيانات الضخمة. بدأ الباحثون والاحصائيون في وضع كيفيات للاستفادة من البيانات الضخمة المحصل عليها لتحسين حياة الإنسان، بمعنى التفكير في استغلالها. وبالفعل، طال تأثير البيانات الضخمة شتى المجالات، إذ تم تحليل البيانات التي تتيحها قواعد البيانات وتحويلها إلى معلومات للحصول على تصورات وأفكار جديدة تفيد الأفراد والمؤسسات في تحسين اقتصاديات المجتمعات، تحقيق التنافسية، الحفاظ على البيئة والصحة، حماية المجتمع وتلبية الحاجيات، وتحسين مستوى المعيشة وغيرها. وكنتيجة لذلك، يمكن للبيانات الضخمة في المستقبل القريب أن تحسن السياسات الحكومية عامة والعربية خاصة. ومنه، نطرح تساؤلات حول كيفية استخدام البيانات الضخمة في التنمية المستدامة، وعن مجالات استخدامها، وإن كان لها دور في اتخاذ القرارات، وعن قيمتها المضافة في تغيير المجتمع لتحقيق أهداف التنمية المستدامة، وكيفية عملها بهدف رصد التقدم ودفع عجلة التنمية، وبالتالي مواكبة العصر. وللإجابة على إشكالية الدراسة، تم الاعتماد على المصادر الوثائقية والأدبية كأداة لجمع المعلومات بهدف تحليل الموضوع.
In bodies and homes: Gendering citizenship in Southern African cities
Authors: Oldfield Sophie , Mathsaka Netsai Sarah , Salo Elaine , Schlyter Ann
Published: June 2019

How do the everyday contexts in which ordinary women struggle to access and maintain a place on the peripheries of the city shape experiences of citizenship? This paper explores this question in George, a periurban Lusaka neighbourhood in Zambia and through experiences of Zimbabwean migrant women’s negotiation of a place on the peri-urban edges of Khayelitsha, Cape Town, South Africa. In the logics of citizen-subjects, the experiences of these groups of women should be poles apart, the first with rights imbued in citizenship, the second migrants without. Here instead, we demonstrate the ways in which gendered political subjectivities embed in the hard, lived realities of home. In placing gender and everyday body politics at the forefront of our analysis, the paper makes visible the micro-realities of making home. We demonstrate that an assumed recursive relationship between citizenship and home, as a physical and social place in the city, is problematic. Building on debates on citizenship and its gendering in post-colonial African urban contexts, we demonstrate instead that citizenship and its gendered contestations and emergent forms in Southern African are crafted in quotidian activities in homes and everyday city contexts.
The Suspected Child Abuse and Neglect (SCAN) Programme in Malaysia: From Inception to Present
Authors: Ghani Rimah Melati Ab. , Rosman Azriman , Muhamad Nor Asiah
Published: June 2019

Issues on child abuse are very critical considering the many incidents of abuse and violence against children. Experiencing abuse in childhood has lifelong impacts on the health and well-being of children, their families and communities. Suspected Child Abuse and Neglect (SCAN) service is centralised, multidisciplinary team management in the government hospital and serve as a supportive service or programme to children, families and hospital staff. This paper outlines the history and the SCAN service available in Malaysia.
Geospatial Evaluation of Sustainable Development: Analysing a Sample of a Successful Social Safety Net
Authors: Dandabathula Giribabu , Reddy Sudhakar Ch. , Mohapatra Chandrika , Rao Peddineni V.V Prasada
Published: June 2019

Sustainable Development (SD) not only ensures addressing the root cause of poverty but also helps in achieving the wellness of society. Protecting the natural resources for current and future generations is the main goal of the SD process. In recent times, developing countries have initiated social safety nets (SSNs) for poverty elimination and to achieve the SD goals through public works. The Government of India has initiated numerous development projects aimed to achieve SD and Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA) is one of them. The research objective of this article is to harness the power of geospatial technology for evaluating the public works under MGNREGA at a district level. The proposed research method utilizes the power of remote sensing data with a very high spatial and temporal resolution to monitor the development activities at the grass root level. Satellite based land-use maps, indices, and publicly available web based geospatial information systems have been used in this investigation to assess the changes that have occurred due to the community-level planned activities. The findings from this research confirm that MGNREGA has the potential to accrue multiple dividends at all the three pillars of SD, i.e., economic development, social development, and environmental protection. It was proved from this research that public works under MGNREGA besides providing the wage based employment to the beneficiaries resulted in improved water conservation and harvesting facilities in the study area and in return, these facilities acted as a catalyst for improved agricultural productivity.
De WODC-affaire: een kritische blik op het werk van de onderzoekscommissie-Hertogh
Authors: de Ruig Lennart
Published: June 2019

De WODC-affaire: een kritische blik op het werk van de onderzoekscommissie-Hertogh

Maar liefst drie onderzoekscommissies brachten een rapport uit over de vermeende politieke beïnvloeding en sturing van onderzoek op het WODC van het ministerie van Justitie en Veiligheid. Maar uit het rapport van de commissie-Hertogh, die de kwestie in een breder perspectief moest plaatsen, komt geen eenduidig beeld naar voren van de ernst, omvang en oorzaken van de problematiek. Deze commissie verzuimt om een grondige analyse te maken van de achtergronden van de kwestie. Ook de methodologie van het onderzoek van de commissie-Hertogh rammelt, op zijn zachtst gezegd. En de aanbevelingen van deze commissie gaan voorbij aan het belang van interactie tussen beleidsmakers en onderzoekers. Het rapport voldoet niet aan de kwaliteitseisen die je aan beleidsonderzoek kunt stellen. Dat is spijtig: de WODC-affaire had beter onderzoek verdiend.
PULVERIZED COAL COMBUSTION ADVANCED CONTROL TECHNIQUES
Authors: Gromaszek Konrad
Published: June 2019

The paper describes the selected methods of adaptive control of the pulverized coal combustion process overview with various types of prognostic models. It was proposed to use a class of control methods that are relatively well established in industrial practice. The presented approach distinguishes the use of an additional source of information in the form of signals from an optical diagnostic system and models based on selected deep structures of recurrent networks. The research aim is to increase the efficiency of the combustion process in the power boiler, taking into account the EU emission standards, leading in consequence to sustainable energy and sustainable environmental engineering.
Grønlands udenrigspolitik og internationale relationer: Nuværende rammer og mulig udvikling i et selvstændighedsperspektiv
Authors: Kleist Mininnguaq
Published: June 2019

In the beginning of the article, the legal and political framework for Greenland's international and foreign affairs actions under the current self-government act and the Danish constitution are introduced. Although Denmark, pursuant to the constitution possesses the competences of foreign affairs politics within the Kingdom, it is also made clear that reality is a bit more complicated and Greenland is not without its competences, rights and democratic responsibility to the Greenlandic people within foreign affairs. Based on Greenland's previous colonial status under the UN and international law for colonies, as well as the aforementioned legislation, the possibilities for Greenland's development within foreign affairs are dealt with in an independence perspective. The possibilities under a possible federal model or a Free Association relationship with Denmark are highlighted as worth striving for. The article does not go into depth with individual cases, but focuses on frameworks and relevant subjects, such as security policy, membership of international organizations and practical aspects like capacity considerations.
CRISPR-Cas9 may restore the balance of hormones affected by the frequency of DNA methylation sites and a decrease of commensal bacteria
Authors: Hillman Tatiana
Published: June 2019

In this review, it is suggested that there are connections between hormonal changes, the frequency of DNA methylation, and disease. The commensal microbes of the gut may also affect the production of those hormones. Short Chain Fatty Acids, produced from gut microbiota glucose metabolism, like butyrate, propionate, folate, and acetate act as ligands that bind to G-coupled protein receptors. For example, folate from Bifidobacterium donates a methyl for synthesizing S-adenosylmethionine or SAM, which then donates a methyl to the enzymes of DNA methylation, acting as a substrate. The effects of hormones on DNA methylation was reviewed. Increased progesterone can produce breast cancer by lessening DNA methylation allowing progesterone molecules to bind DNA, amplifying gene expression. Through measuring the frequency of DNA methylation perhaps breast cancer can be more readily identified, diagnosed, and treated. The intended purpose for this review is to propose the possibility of applying CRISPR-Cas9 methods to correct and restore the balance of hormones through epigenetic means. In this review, 1) the effects of microbes on hormonal balance, 2) the connection between hormones and DNA Methylation, 3) cancer and DNA methylation, 4) measuring DNA methylation, and 5) applying CRISPR methods will be discussed.
Predicting the results of evaluation procedures of academics
Authors: Poggi Francesco , Ciancarini Paolo , Gangemi Aldo , Nuzzolese Andrea Giovanni , Peroni Silvio , Presutti Valentina
Published: June 2019

Background

The 2010 reform of the Italian university system introduced the National Scientific Habilitation (ASN) as a requirement for applying to permanent professor positions. Since the CVs of the 59,149 candidates and the results of their assessments have been made publicly available, the ASN constitutes an opportunity to perform analyses about a nation-wide evaluation process.

Objective

The main goals of this paper are: (i) predicting the ASN results using the information contained in the candidates’ CVs; (ii) identifying a small set of quantitative indicators that can be used to perform accurate predictions.

Approach

Semantic technologies are used to extract, systematize and enrich the information contained in the applicants’ CVs, and machine learning methods are used to predict the ASN results and to identify a subset of relevant predictors.

Results

For predicting the success in the role of associate professor, our best models using all and the top 15 predictors make accurate predictions (F-measure values higher than 0.6) in 88% and 88.6% of the cases, respectively. Similar results have been achieved for the role of full professor.

Evaluation

The proposed approach outperforms the other models developed to predict the results of researchers’ evaluation procedures.

Conclusions

Such results allow the development of an automated system for supporting both candidates and committees in the future ASN sessions and other scholars’ evaluation procedures.