bluuebunny/crossref_metadata_2025 huggingface dataset:
AMELİYATHANE ÇALIŞANLARINDA İŞ GÜVENLİĞİ VE İŞ GÖREN SAĞLIĞININ HİZMET KALİTESİ ÜZERİNE ETKİSİ (MALATYA DEVLET HASTANESİ VE ÖZEL HASTANELER ÖRNEĞİ)
Authors: KÖSEOĞLU Hanim , GÜLHAN Yıldırım Beyazıt
Published: June 2020

Bu çalışmada, ameliyathane ortamlarının iş sağlığı ve güvenliği yönünden elverişli olup olmadığı ve iş sağlığı ve güvenliği çalışmalarının hizmet kalitesine olan etkisinin incelenmesi amaçlanmıştır. Kesitsel tipte olan bu araştırmanın verileri, Malatya ilinde ameliyathanelerde görev alan 342 personelle yapılmış anket ile toplanmıştır. Araştırmaya katılanların %52,9’u iş güvenliği ile ilgili eğitim almamıştır, %47,1’i işyerinde tehlike ve riskleri azaltmak için kontroller ve çözümler uygulanması hakkında fikrinin olmadığını belirtmiştir. Araştırmaya katılanların %38,3 iş kazası yaşamıştır ve bu kazaların çoğunluğunu %35,4 ile kesici-delici bir aletle yaralanma oluşturmuştur. Katılımcıların %68,7’si ameliyathanedeki iş kazalarının oluşum nedeninin aşırı iş yükü ve çalışma saatlerinin uzunluğu olduğunu düşünmektedir. Radyasyon vb. gibi durumlar için yeterli koruma önlemleri (%59,4) alınmadığı, ameliyathane çalışanlarının sorunlarının başında gelmektedir. Kalite boyutları açısından, beklenti düzeylerinin algı düzeylerinden yüksek olduğu görülmüştür. İş görenlerin hizmet kalitesi beklentileri karşılanamamıştır. Sonuç olarak; çalışma ortamı ve iş sağlığı güvenliği ile ilgili önlemler artıkça hizmet kalitesi algısı artmakta buna karşılık iş sağlığı ve güvenliği ile ilgili olumsuzluklar artıkça hizmet kalitesi algısında düşüş yaşandığı tespit edilmiştir.
A Search for Extra-tidal RR Lyrae in Globular Clusters NGC 5024 and NGC 5053
Authors: Ngeow Chow-Choong , Belecki Justin , Burruss Rick , Drake Andrew J. , Graham Matthew J. , Kaplan David L. , Kupfer Thomas , Mahabal Ashish , Masci Frank J. , Riddle Reed , Rodriguez Hector , Rusholme Ben
Published: June 2020

Recently, Kundu et al. reported that the globular cluster NGC 5024 (M53) possesses five extra-tidal RR Lyrae. In fact, four of them were instead known members of a nearby globular cluster NGC 5053. The status of the remaining extra-tidal RR Lyrae is controversial depending on the adopted tidal radius of NGC 5024. We have also searched for additional extra-tidal RR Lyrae within an area of ∼8 deg2 covering both globular clusters. This includes other known RR Lyrae within the search area, as well as stars that fall within the expected range of magnitudes and colors for RR Lyrae (and yet outside the cutoff of two-thirds of the tidal radii of each globular cluster for something to be called extra-tidal) if they were extra-tidal RR Lyrae candidates for NGC 5024 or NGC 5053. Based on the the proper-motion information and their locations on the color–magnitude diagram, none of the known RR Lyrae belong to the extra-tidal RR Lyrae of either globular clusters. In the cases where the stars satisfied the magnitude and color ranges of RR Lyrae, analysis of time series data taken from the Zwicky Transient Facility do not reveal periodicities, suggesting that none of these stars are RR Lyrae. We conclude that there are no extra-tidal RR Lyrae associated with either NGC 5024 or NGC 5053 located within our search area.
New Beta Cephei Stars from the KELT Project
Authors: Labadie-Bartz Jonathan , Handler Gerald , Pepper Joshua , Balona Luis , Cat Peter De , Stevens Daniel J. , Lund Michael B. , Stassun Keivan G. , Rodriguez Joseph E. , Siverd Robert J. , James David J. , Kuhn Rudolf B.
Published: June 2020

We present the results of a search for Galactic β Cephei  stars, which are massive pulsating stars with both pressure modes and mixed modes. Thus, these stars can serve as benchmarks for seismological studies of the interiors of massive stars. We conducted the search by performing a frequency analysis on the optical light curves of known O- and B-type stars with data from the Kilodegree Extremely Little Telescope exoplanet survey. We identify 113 β Cephei  stars, of which 86 are new discoveries, which altogether represent a 70% increase in the number currently known. An additional 97 candidates are identified. Among our targets, we find five new eclipsing binaries and 22 stars with equal frequency spacings suggestive of rotational splitting of nonradial pulsation modes. Candidates for runaway stars among our targets and a number of interesting individual objects are discussed. Most of the known and newly discovered β Cephei  stars will be observed by the Transiting Exoplanet Survey Satellite mission, providing by far the most comprehensive observational data set of massive main-sequence pulsating stars of sufficient quality for detailed asteroseismic studies. Future analysis of these light curves has the potential to dramatically increase our understanding of the structure of stellar interiors and the physical processes taking place therein.
On the Energy Coupling Efficiency of AGN Outbursts in Galaxy Clusters
Authors: Duan Xiaodong , Guo Fulai
Published: June 2020

Active galactic nucleus (AGN) jets are believed to be important in solving the cooling flow problem in the intracluster medium (ICM), while the detailed mechanism is still under debate. Here we present a systematic study on the energy coupling efficiency η
cp, the fraction of AGN jet energy transferred to the ICM. We first estimate the values of η
cp analytically in two extreme cases, which are further confirmed and extended with a parameter study of spherical outbursts in a uniform medium using hydrodynamic simulations. We find that η
cp increases from ∼0.4 for a weak isobaric injection to ≳0.8 for a powerful point injection. For any given outburst energy, we find two characteristic outburst powers that separate these two extreme cases. We then investigate the energy coupling efficiency of AGN jet outbursts in a realistic ICM with hydrodynamic simulations, finding that jet outbursts are intrinsically different from spherical outbursts. For both powerful and weak jet outbursts, η
cp is typically around 0.7–0.9, partly due to the nonspherical nature of jet outbursts, which produce backflows emanating from the hot spots, significantly enhancing the ejecta–ICM interaction. While for powerful outbursts a dominant fraction of the energy transferred from the jet to the ICM is dissipated by shocks, shock dissipation only accounts for ≲30% of the injected jet energy for weak outbursts. While both powerful and weak outbursts could efficiently heat cooling flows, powerful thermal-energy-dominated jets are most effective in delaying the onset of the central cooling catastrophe.
Four new species of Asian horned toads (Anura, Megophryidae, Megophrys) from southern China
Authors: Lyu Zhi-Tong , Li Yuan-Qiu , Zeng Zhao-Chi , Zhao Jian , Liu Zu-Yao , Guo Guo-Xin , Wang Ying-Yong
Published: June 2020

Recent phylogenetic analysis encompassing multilocus nuclear-gene and matrilineal mtDNA genealogy has revealed a series of cryptic species of the subgenus Panophrys within genus Megophrys from southern and eastern China. This study demonstrates that the Panophrys specimens from the hilly areas among Guangdong, Guangxi and Hunan can be morphologically distinguished from all recognized congeners, thereby providing additional supports for the recognitions of four new species of Panophrys, namely Megophrys (Panophrys) mirabilis Lyu, Wang & Zhao, sp. nov. from northeastern Guangxi, Megophrys (Panophrys) shimentaina Lyu, Liu & Wang, sp. nov. from northern Guangdong, and Megophrys (Panophrys) xiangnanensis Lyu, Zeng & Wang, sp. nov. and Megophrys (Panophrys) yangmingensis Lyu, Zeng & Wang, sp. nov. from southern Hunan. The descriptions of these species take the number of Megophrys species to 101, 46 of which belong to the subgenus Panophrys.
Molecular cytogenetic characterization of common bean (Phaseolusvulgaris L.) accessions
Authors: SAVAŞ TUNA Gülsemin , YÜCEL Gülru , KAYGISIZ AŞÇIOĞUL Tansel , ATEŞ Duygu , EŞİYOK Dursun , TANYOLAÇ Muhammed Bahattin , TUNA Metin
Published: June 2020

With an annual global production of approximately 25 million tons, the common bean (Phaseolus vulgaris L), a member of the genus Phaseolus, is one of the major protein sources used as food for humans. In this study, it was aimed to investigate the genome size of the common bean genetic resource collection (154 common bean accessions) in Turkey by flow cytometry (FCM) and determine whether geographical variables affected the genome size. In addition, the number and distribution of 5S and 45S ribosomal DNA loci were designated by performing a fluorescence in situ hybridization (FISH) analysis in some of the accessions. The FCM analyses revealed that the mean nuclear DNA content of the accessions varied from 1.28 pg2C-1 to 1.55 pg2C-1 (mean 1.35 pg2C-1), and the differences between these accessions were statistically significant (P < 0.01). Intraspecific variation in the genome size was determined, and a positive correlation was found between the altitude and genome size. However, latitude and longitude did not have any statistically significant effect on the genome size. In the principal coordinate analysis, the accessions were divided into 3groups. Based on the results of the FISH analysis performed on 5 different accessions with varying genome sizes, using 5S and 45S rDNA genes as probes, the number of 5S rDNA loci was 4 in the common bean and stable among the common bean accessions, while the number of 45S rDNA loci was highly polymorphic, varying between 6 and 16. Consequently, it was determined in the present study that the genetic resource collection of common bean had a wide variation in terms of genome size and genome organization.
La médiation thérapeutique en groupe Jeu vidéo Les Sims
Authors: Gillet Guillaume
Published: June 2020

Cet article propose d’aborder, selon une approche psychodynamique, quelques spécificités de la médiation jeu vidéo en groupe thérapeutique pour adolescents. Après la présentation du cadre-dispositif, nous exposons un matériel clinique à partir duquel nous repérons une associativité polymorphique s’appuyant sur des modalités de symbolisation plurielles, avant de mettre en évidence quelques propriétés spécifiques du jeu vidéo.
Cartographier un angle mort : la surprise stratégique des opérations informationnelles russes sur les réseaux sociaux en 2016
Authors: François Camille , Lin Herbert
Published: June 2020

Malgré plusieurs années de préparation aux cyberattaques contre les infra­structures vitales et contre les forces militaires américaines, il est clair désormais que les intentions de la Russie et les détails de son opération d’influence lors de la campagne présidentielle américaine de 2016 sont restés dans l’angle mort du gouvernement américain et de la Silicon Valley. Cet article s’intéresse à cet angle mort et à la vision occidentale, centrée sur la technologie, qui y a conduit. Les auteurs sillonnent trois champs d’étude offrant des contributions importantes à la compréhension des opérations informationnelles sur les réseaux sociaux : l’étude des cyber-conflits et de la cybersécurité, l’étude de l’Internet et de la société, et la recherche sur le contrôle de l’information au sein des travaux sur les droits de l’homme. Chacun de ces domaines conceptualise le cyberespace différemment, mais une théorie unifiée des opérations informationnelles sur les réseaux sociaux va devoir combler ces fossés conceptuels pour trouver sa juste place.
Les enjeux de la neutralité du Net aux États-Unis
Authors: Escorne Charlotte
Published: June 2020

Fin 2017 la Federal Communication Commission (FCC) a supprimé le principe de neutralité du Net aux États-Unis. Sa suppression donne la possibilité aux fournisseurs d’accès à Internet (FAI) de favoriser, ralentir ou bloquer certains types de contenus sur Internet. Après de nombreuses mobilisations, des États ont porté plainte contre la FCC et/ou ont fait passer des ordres exécutifs pour rétablir ce principe dans leurs États. Un acte de réexamen a été lancé au Congrès. Notre objectif est de comprendre quels sont les enjeux de la neutralité du Net aux États-Unis, et plus particulièrement en Californie, berceau d’Internet et de l’industrie de la tech. Quelles raisons motivent ses détracteurs et ses défenseurs, quelles stratégies sont mises en place par chaque parti pour défendre ses positions, quelles représentations chaque parti se fait des enjeux autour de la neutralité du Net, et enfin quels mécanismes sont cachés derrière la défense ou la mise à mort de cette dernière, dans un monde qui tend à devenir entièrement numérique ?
Gaia Is No Loser: Planetarity Beyond Competition in Ursula Le Guin’s Vaster Than Empires and More Slow
Authors: Patoine Pierre-Louis
Published: June 2020

Dans Vaster than Empires and More Slow , Ursula Le Guin met en scène un groupe de scientifiques explorant une planète recouverte d’un réseau végétal doté d’une forme de conscience. La rencontre entre ce groupe déchiré par les conflits interpersonnels et cette conscience solitaire et sereine suggère qu’une vision agonistique du rapport social – vision où la compétition apparait comme une « loi de la nature » divisant les gagnants des perdants – peut-être remise en question par l’inscription de ce rapport dans une dynamique planétaire, échelle où les contours d’une telle loi se trouvent redéfinis.
Gargantua, géant de papier ? Migrations visuelles et jeux d’échelles
Authors: Tillier Bertrand
Published: June 2020

Le xix e  siècle a fait de Gargantua, le géant débonnaire et jovial inventé par Rabelais, le parangon de l’esprit de satire et du rire français. Dans le même temps, cette figure s’est imposée comme une matrice visuelle des imaginaires sociaux, de la Révolution française à la Belle Époque. Le personnage s’est, en effet, rapidement autonomisé de son référent textuel pour établir son propre régime visuel. L’étude d’un vaste corpus de représentations comprenant des caricatures, peintures, illustrations, dessins de presse, décors de brasserie, affiches commerciales, géants de carnavals et cartes postales, montre comment, en dehors de toutes hiérarchies et selon une dynamique de migrations, l’iconographie de Gargantua s’est durablement développée dans une culture savante et populaire médiatisée, fondée sur des changements d’échelles.
Le chanteur, la baguette et la peinture historiée (une iconographie européenne)
Authors: Besson Christian
Published: June 2020

Un peu partout en Europe, du xvii e  siècle jusqu’à la Seconde Guerre mondiale, le dessin, la peinture, la gravure ou la photographie ont représenté le chanteur de complaintes, juché sur un échafaud, pointant de sa baguette une grande peinture où étaient figurés les principaux épisodes de l’histoire racontée. Ce personnage, souvent pris comme un quelconque bonimenteur, souffre d’être mal identifié. Il est cousin d’autres vaguants : des colporteurs (parce qu’il vendait ses complaintes imprimées et illustrées) mais aussi des banquistes qui se produisaient lors des kermesses et des foires – charlatans, montreur de lanterne magique ou de vues d’optique. Cet essai de panorama iconographique, conduit d’un point de vue pragmatique, est limité à l’Europe occidentale ; il s’appuie sur la compilation d’une petite centaine de représentations de chanteurs de complaintes saisis en activité.
Des instruments d’optique comme pièges. De l’anthropologie historique du regard à sa politisation
Authors: Maillet Arnaud
Published: June 2020

Cet article examine la façon dont, au cours de la seconde moitié du xix e  siècle surtout, une série de dispositifs optiques ( camera obscura , miroir, photographie) et la technique du portrait ont pris au piège tour à tour l’âme, l’esprit et le regard. En effet, pour un grand nombre de personnes (« sauvages », habitants de contrées reculées, ignorants, incultes et nomades), ces instruments d’optique et les portraits réalisés avec ont constitué un réel danger de mort, leur âme leur étant arrachée pour être mise en image. Par-delà le côté amusé ou railleur des anecdotes rapportant ces faits, on perçoit la véritable stratégie idéologique qui consistait à portraiturer toutes ces personnes. Prendre leur portrait était une manière de prendre leurs âme, identité et personnalité pour les aliéner et les faire entrer de force dans la modernité de la civilisation industrielle et capitaliste.
Approches et méthodes en ecclésiologie
Authors: de La Soujeole Benoît-Dominique
Published: June 2020

Beaucoup de questions ecclésiologiques actuellement discutées dans le cadre du dialogue œcuménique, en particulier avec les orthodoxes, ou faisant l’objet de recherches dans chacune des confessions chrétiennes, sont des questions que l’on peut appeler de « relation » : quelle relation entre la primauté et la conciliarité ?, quelle relation entre les deux sacerdoces participés du Christ ?, quelle relation entre l’Église en son entier qui confesse la foi et le service magistériel ?, etc. En amont des choix légitimes d’écoles en lesquelles s’accomplit la recherche théologique, il y a la question du « point de départ », du type d’approche adopté. Cette contribution présente deux modèles généraux, celui par l’ équilibre et celui par l’ harmonie . Ces deux voies sont bien distinctes et conduisent à des propositions fort différentes.
A compressed secret image sharing method with shadow image verification capability
Authors: Yang Guozheng ,   National University of Defense Technology, Heifei 230037, China, Liu Lintao , Yan Xuehu ,   Anhui Key Laboratory of Cyberspace Security Situation Awareness and Evaluation, Heifei 230037, China
Published: June 2020

Secret image sharing (SIS) is an important research direction in information hiding and data security transmission. Since the generated shadow images (shares) are always noise-like, it is difficult to distinguish the fake share from the unauthorized participant before recovery. Even more serious is that an attacker with a fake share can easily collect shares of other honest participants. As a result, it is significant to verify the shares, before being taken out for recovery. Based on two mainstream methods of SIS, such as polynomial-based SIS and visual secret sharing(VSS), this paper proposed a novel compressed SIS with the ability of shadow image verification. Considering that the randomness of the sharing phase of polynomial-based SIS can be utilized, one out of shares of (2, 2)-threshold random-grid VSS is embedded into all shares of polynomial-based SIS by a XOR operation as the verification information, while the other binary share is private for verification. Before recovery, each participant must extract the binary share from the grayscale share to perform XOR operation with the private share, and the original binary image can be recovered only with the true share. The proposed scheme also has the characteristics of shadow image verification, pixel compression, loss tolerance and lossless recovery. Through experiments and comparative analysis of related research results, the effectiveness and advantages of the method are verified.
Études des peintures murales médiévales soudanaises de 1963 à nos jours – Essai d’historiographie
Authors: Wozniak Magdalena M.
Published: June 2020

La découverte de la cathédrale de Faras au début des années 1960 par une mission polonaise, lors de la Campagne internationale de Nubie, révèle aux archéologues un trésor insoupçonné : plus de 150 peintures murales de grande dimension, aux couleurs éclatantes, témoins d’un demi-millénaire de l’histoire et de la production artistique de la Nubie chrétienne. Après transfert et conservation, les peintures sont partagées entre Khartoum et Varsovie, où elles sont exposées jusqu’à l’heure actuelle. Sans aucun doute, la paternité de la découverte et la présence des fresques dans la capitale polonaise ont été des facteurs prépondérants dans la spécialisation des chercheurs polonais sur l’archéologie de la Nubie médiévale. Cette étude présente un tour d’horizon de l’historiographie de l’art nubien, en particulier les différentes approches adoptées par les chercheurs pour appréhender ces peintures.
Finding provenance, seeking context
Authors: Mark Peter
Published: June 2020

If one of the aims of art history is to understand better the original meaning of the works studied, then an historical methodology is absolutely essential to the identification and interpretation of precolonial objects. This essay focuses on 16th- and 17th-century ivory carvings identified as ‘Luso-African’. Both the geographical provenance and the ‘ethnic’ or cultural origins of the presumed artists have been mistakenly identified. Geographical terms associated with the Upper Guinea Coast in the 16th century do not correspond to the region these terms are associated with today. Likewise, the term used to identify the culture of the artists, ‘Sapes’, does not correspond to any contemporary group using that designation.The objects are richly documented in late 16th- and 17th-century Portuguese sources. These sources do not claim that only the southern ‘Sapes’ carved ivory. If, therefore, one assumes that some of the works were produced in the northern range of ‘Sape’ occupation, present-day Guinea-Bissau, it then becomes advisable for the art historian to compare these ivories with the rich corpus of wood sculpture made by the groups whose ancestors belonged to or lived adjacent to the northern ‘Sapes’. Paramount among these groups are the Bijogos. Bijogo carving is historically documented to the 17th century. Such comparisons may help understand the symbolism of the saltcellars.
Prevalence and factors associated with mental health problems among children with asthma: a hospital-based study
Authors: Dahanayake D. M. A. e , Wijethunge G. S. , De Silva V. A.
Published: June 2020

BackgroundChildhood asthma is associated with emotional and behavioural problems. The prevalence and factors associated with psychological problems in childhood asthma have not been studied in Sri Lanka. AimsThe aim of this study was to describe the prevalence and factors associated with development of emotional and behavioural problems among children with asthma, presenting to outpatient follow up clinics. MethodsThis was a hospital based cross sectional descriptive study using systematic random sampling (n=250). The parents completed the Strengths and Difficulties Questionnaire (Sinhala version) and children with borderline or abnormal scores were assessed further using a structured interview, based on the International Classification for Disease-10 research criteria. ResultsThe mean age of participants was 8.1 years and 141 (56.4%) were males. The mean duration of asthma and age at diagnosis was 4.4 years and 3.6 years respectively. In 62% of participants, the asthma was well controlled. The prevalence of mental health problems was 8%. Borderline or abnormal scores in at least one scale of the SDQ was found in 18.4%, and 2.8% had abnormal or borderline impact scores. The level of asthma control was significantly associated with emotional problems score (OR 8.23, p=0.41). ConclusionsThe prevalence of mental health problems among children with asthma was comparable to the general population. Asthma control was significantly associated with emotional problems and this carries implications for management.
A qualitative study of mealtime difficulties in patients with dementia who feed themselves
Authors: Damayanthi D. G. H. , De Silva A. M. N. L. , Gunathilake I. A. G. M. P. , Suraweera C. U.
Published: June 2020

BackgroundCaregivers looking after persons with dementia may often experience mealtime difficulties. This has been described in persons with severe dementia in the West. But data from Asian countries such as Sri Lanka is limited, and there has been less focus on problems associated with the care of people with mild or moderate dementia. AimsThe aims of this study were to describe mealtime difficulties experienced by caregivers of individuals with dementia who feed themselves, and the responses by the caregivers to these problems. MethodsA focus group discussion was conducted with the participation of twelve caregivers of individuals living with dementia who feed themselves and are receiving home based care. A pretested semi structured discussion guide was used. An abridged transcript was developed from the audio tape recording, transcribed notes and observations by the moderator. Braun and Clarke’s six step approach to thematic analysis was adopted in the analysis. ResultsThe main themes identified were; problems experienced by the caregivers when preparing food, changes in quantity of food consumed, measures taken by caregivers to overcome mealtime difficulties and the emotional responses of the caregivers. Mealtime difficulties can lead to reduced intake as well as overeating. Voluntary overfeeding by the caregivers was observed. Modification of dining environment or use of adaptive utensils were not practiced. Emotional exhaustion among the caregivers, and humiliating or dishonouring the individuals with dementia were the maladaptive responses. ConclusionsSome of the mealtime difficulties in individuals with dementia in the Sri Lankan setting differ from those described in international literature. Early recognition of difficulties and guidance on adaptive measures will enable independence for a longer period and better nutrition.
Algebras of Lorch Analytic Mappings Defined on Uniform Algebras
Authors: Mauro Guilherme V. S. , Moraes Luiza A.
Published: June 2020

For a unitary commutative complex Banach algebra

E

, let

\mathcal{H}_L(U)

be the space of the mappings from an open connected subset

U

of

E

into

E

that are analytic in the sense of Lorch. We consider the space

\mathcal{H}_L(U)

endowed with a convenient topology

\tau_d

which coincides with the topology

\tau_b

when

U=E

or

U=B_r({z}_0)= \{z \in E ;\ \Vert z - z_0 \Vert < r\}

(

z_0 \in E

,

r > 0

). We consider the case

U=E_\Omega= \{z \in E;\ \sigma(z) \subset \Omega\}

where

\Omega \subsetneq \mathbb{C}

is a simply connected domain and we study topological and algebraic properties of

(\mathcal{H}_L(E_\Omega),\tau_d)

for special algebras

E.

A description of the spectrum of

(\mathcal{H}_L(E_\Omega), \tau_d)

is given in the case that

E

is a uniform algebra. As a consequence we get that in this case the algebra

(\mathcal{H}_L(E_\Omega),\tau_d)

is semisimple.
On the Hodge Theory of the Additive Middle Convolution
Authors: Dettweiler Michael , Reiter Stefan
Published: June 2020

We compute the behavior of Hodge data under additive middle convolution for irreducible variations of polarized complex Hodge structures on punctured complex affine lines.
Lagrangian Distributions and Fourier Integral Operators with Quadratic Phase Functions and Shubin Amplitudes
Authors: Cappiello Marco , Schulz René , Wahlberg Patrik
Published: June 2020

We study Fourier integral operators with Shubin amplitudes and quadratic phase functions associated to twisted graph Lagrangians with respect to symplectic matrices. We factorize such an operator as the composition of a Weyl pseudodifferential operator and a metaplectic operator and derive a characterization of its Schwartz kernel in terms of phase space estimates. Extending the conormal distributions in the Shubin calculus, we define an adapted notion of Lagrangian tempered distribution. We show that the kernels of Fourier integral operators are identical to Lagrangian distributions with respect to twisted graph Lagrangians.
Positive Representations of Split Real Simply-Laced Quantum Groups
Authors: Ip Ivan C. H.
Published: June 2020

We construct the positive principal series representations for

\mathcal U_q(\mathfrak g_\mathbb R)

where

\mathfrak g

is of simply-laced type, parametrized by

\mathbb R_{\geq 0}^r

where

r

is the rank of

\mathfrak g

. We describe explicitly the actions of the generators in the positive representations as positive essentially self-adjoint operators on a Hilbert space, and prove the transcendental relations between the generators of the modular double. We define the modified quantum group

\mathbf U_{\mathfrak q \tilde{\mathfrak q}}(\mathfrak g_\mathbb R)

of the modular double and show that the representations of both parts of the modular double commute weakly with each other, there is an embedding into a quantum torus algebra, and the commutant contains its Langlands dual.
The well-being of Swiss general internal medicine residents
Authors: Zumbrunn Brigitta , Stalder Odile , Limacher Andreas , Ballmer Peter E. , Bassetti Stefano , Battegay Edouard , Beer Jürg Hans , Brändle Michael , Genné Daniel , Hayoz Daniel , Henzen Christoph , Huber Lars Christian , Petignat Pierre-Auguste , Reny Jean-Luc , Vollenweider Peter , Aujesky Drahomir
Published: June 2020

BACKGROUND
Physician well-being has an impact on productivity and quality of care. Residency training is a particularly stressful period.

OBJECTIVE
To assess the well-being of general internal medicine (GIM) residents and its association with personal and work-related factors.

METHODS
We conducted an anonymous electronic survey among GIM residents from 13 Swiss teaching hospitals. We explored the association between a reduced well-being (≥5 points based on the Physician Well-Being Index [PWBI]) and personal and work-related factors using multivariable mixed-effects logistic regression.

RESULTS
The response rate was 54% (472/880). Overall, 19% of residents had a reduced well-being, 60% felt burned out (emotional exhaustion), 47% were worried that their work was hardening them emotionally (depersonalisation), and 21% had career choice regret. Age (odds ratio [OR] 1.19, 95% confidence interval [CI] 1.05–1.34), working hours per week (OR 1.04 per hour, 95% CI 1.01–1.07) and <2.5 rewarding work hours per day (OR 3.73, 95% CI 2.01–6.92) were associated with reduced well-being. Administrative workload and satisfaction with the electronic medical record were not. We found significant correlations between PWBI score and job satisfaction (rs = -0.54, p<0.001), medical errors (rs = 0.18, p<0.001), suicidal ideation (rs = 0.12, p = 0.009) and the intention to leave clinical practice (rs = 0.38, p <0.001)

CONCLUSIONS
Approximately 20% of Swiss GIM residents appear to have a reduced well-being and many show signs of distress or have career choice regret. Having few hours of rewarding work and a high number of working hours were the most important modifiable predictors of reduced well-being. Healthcare organisations have an ethical responsibility to implement interventions to improve physician well-being.
The Case for Explicit Instruction of the Nature of Science in Secondary Science Education through the Incorporation of the History and Philosophy of Science
Authors: Cartiff Brian
Published: June 2020

Richard Feynman, the celebrated physicist, is frequently attributed as saying that “philosophy of science is about as useful to scientists as ornithology is to birds.” Professor Feynman taught at the California Institute of Technology for many years, but perhaps this experience did not afford him the best view of the general level scientific literacy of most people. The inventive Feynman would likely be disappointed in the rigid nature of much pre-college science instruction, and he would definitely be disappointed in the lack of student understanding of the nature of science. The Next Generation Science Standards emphasize the nature of science as one of their standards, but currently most pre-college science instructors do not address this learning target or only do so through the indirect approach of using inquiry lessons. There is strong evidential support for including the explicit instruction of the philosophy of science and the history of science in pre-college science classrooms as a way of augmenting scientific literacy and enhancing student views on the nature of science. This article discusses some of the potential benefits of this instruction and some of the obstacles that must be overcome to implement it.
TÜRKİYE’DE BİYOLOJİ EĞİTİMİ ÜZERİNE YAPILAN LİSANSÜSTÜ TEZLERİNİN İNCELENMESİ
Authors: ÖZAY KÖSE Esra , KONU Meryem
Published: June 2020

Günümüzde eğitim bilimleri ve
teknolojilerinin gelişmesine paralel olarak kendini yenileyen biyoloji eğitimi
üzerine çok sayıda çalışma yapılmaktadır. Yapılan bu çalışmaların bir kısmı
bilimsel dergilerde yayınlanan makaleler olmakla birlikte bir kısmı ise lisansüstü
tezler şeklindedir. Araştırma yapan insanların ilk olarak “literatürde önceki
çalışmaların neler olduğu”, “hangi konu ve problemler üzerinde yapılacak
çalışmalara ihtiyaç duyulacağı” ve “bu ihtiyaçların giderilmesinde izlenecek
yolların neler olduğu ve nasıl giderileceği” gibi sorulara cevap aramaları
gerekmektedir.  Diğer fen alanlarında
olduğu gibi biyoloji eğitimi alanında yapılan çalışmalar da, alandaki güncel
eğilimlerin ortaya çıkarılmasını, hangi konuların doygunluğa ulaştığının ya da
ne tür yeni araştırmalara ihtiyaç duyulduğunun belirlenmesini ve böylece
eğitimin kalitesinin yükseltilmesini amaçlamaktadır. Bu çalışmanın amacı, YÖK
Ulusal tez merkezi tarama resmi sitesinden yayınlanan biyoloji eğitimi alanında
yapılan tezlerin betimsel analizini yaparak, ülkemiz için bu alanlarda yapılan
çalışmaların eğilimlerini ve öncelikli araştırma konularını belirlemektir. Bu
amaç doğrultusunda, biyoloji eğitimi anahtar kelime taraması ile elde edilen
659 tez incelenmiştir. Bu çalışmada, veriler analiz edilirken; çalışmaların
yıllara göre dağılımına, tez çeşitlerine, araştırma konusuna, tamamlatılan
üniversitelere ve enstitülere göre kategorize edilmiş, listeler haline
getirilmiş ve ilgili tablolarda araştırmanın amaçları doğrultusunda yüzde ve
frekansları alınmış ve yorumlanmıştır. Böylece bu çalışmanın, araştırmacılara
bu alandaki güncel durumlar ve eğilimlerin neler olduğu konusunda yardımcı
olması beklenmektedir.
TÜRKİYE'DEKİ SURİYELİ ÇOCUKLARA EĞİTİM HİZMETİ SUNMADA KÜLTÜREL DUYARLILIK VE BÜTÇE PLANLAMASI: AVUSTRALYA’DAN BİR ÖRNEK OLAY İNCELEMESİ
Authors: CANAZ Artun Kerem , KÜÇÜKER Erdal
Published: June 2020

Bu örnek olay
incelemesi, nitel araştırma yöntemlerinden belge inceleme yöntemiyle desenlenmiştir.
Bu araştırmanın amacı, Türkiye’de model alındığında eğitim sunumunu göçmenlerin
ihtiyaçlarına daha cevap verir bir hale getirilebileceği düşünülen
Avustralya’daki çeşitli uygulamaları, Victoria eyaleti okul bütçe yönetimi yasaları
ve Victoria eyaletindeki bir okulun uygulamaları üzerinden, bütçe planlaması ve
bunun hayata geçirilmesi aşamalarını inceleyerek önerilerde bulunmaktır.
Araştırmanın bulguları, Victoria eyaletinde göçmenlere verilen eğitim
hizmetlerinin, hem öğrencileri hem de velileri kapsayan bütünsel bir sosyal
dahil etme süreci şeklinde olduğunu ortaya koymaktadır. Göçmen çocuklara kendi
dil ve kültürlerini de belirli oranlarda içeren, Victoria öğretim programı
verilmektedir. Öğretim programına göçmen çocuklar ve aileleri için konulan
etkinliklerin giderleri eyaletin ve okulların eğitim bütçeleri içerisindeki
ilgili kalemlerden karşılanmaktadır. Araştırmada Türkiye’de göçmenlere
nitelikli eğitim verebilmek için gerekli kaynakların geçici fonlar değil,
politika belirleyicilerin göçmen gerçeğini göz önünde bulundurarak yapacağı
ulusal ölçekteki planlamalar doğrultusunda hazırlanacak eğitim bütçeleri olması
gerektiği belirtilmiştir.
Program Evaluation and Review Technique Analysis of an Engineering Project
Authors: Aribisala Adetoye , Otenaike Adegboyega , Balogun Olusegun , Ofusori Lizzy
Published: June 2020

Between fifty to eighty percentof the projects known are not completed within the specified number of working days. Either the contractor was assessed liquidated damages or time extensions were authorized, necessitating additional manpower and / or extended working hours.The result in both cases was animmediate financial loss to the contractors; these losses were ultimately passed on to the company in general, contributing to spiraling project costs.Therefore, this paper examines and analysis data related to the project of the reactivation of line 1 for the production of iron ore concentrates of national Iron Ore Mining Company, Itakpe. Data collected involved the optimistic time, most likely and pessimistic times of completion of critical activities making up the project. This data was analyzed using the Program Evaluation and Review Technique(PERT), a MATLAB program was written to determine the critical path and the probability of project completion at a simulated time. It was found out that the project should have been completed in an optimal time of between 110 and 120 days as against the actual completion time of 180 days. The result of the simulated optimal completion time was compared to the actual completion time. Management agreed to adopt the PERT technique in future project works in the organization.
A Step Block Algorithm for Solving First Order Initial Value Problems in Ordinary Differential Equations
Authors: Adeyefa Emmanuel O , Fadaka Oluwatosin
Published: June 2020

The implementation of the newly formulated polynomials, ADEM-B orthogonal polynomials,  valid in the interval [-1, 1] with respect to weight function is our major focus in this work. The polynomials, which serve as basis function are employed to develop finite difference methods. Varying off-step points are considered for only One-Step method for the solution of the initial value problems of Ordinary Differential Equations (ODEs).  By selection of points for both interpolation and collocation, threeimportant class of block finite difference methods are produced. The methods are analyzed for their basic properties and findings show that they are accurate and convergent.
Token Validation in Automatic Corpus Gathering for Yorùbá Language
Authors: Adewole Lawrence B , Adetunmbi Adebayo O , Alese Boniface K , Oluwadare Samuel A
Published: June 2020

Recent methodologies in machine translation depend on the availability of large language corpora. The web being the repository for text and other multimedia content becomes a viable source for such data. However, there is need for text cleaning, as a pre-processing step, since foreign words are inevitably part of the harvested text. Dictionary lookup approach can be adopted for languages with comprehensive lexicon while manual cleaning approach is applied in other cases. Developing a full-coverage lexicon for Yoruba language is a cumbersome task due to the fact that new words can be formed as a result of elision, assimilation and contraction. In this paper, the morphology of Yorùbá language was studied and modelled as a Finite State Machine which accepts a word and returns true if the goal state is reached and false otherwise. The FSM model was implemented in Java. A Yorùbá dictionary containing 10,443 distinct words in their base form (i.e. without diacritics) and English dictionary with 64,150 distinct words were parsed through the finite state machine.   In addition, 58 web pages sourced from the internet were subjected to classification by the system. Classification of entries from the Yoruba dictionary as valid Yoruba words gave 99.99% accuracy while the classification of entries from the English dictionary as Non-Yoruba words gave 94.07% accuracy. Also, using the threshold of 90% valid Yoruba words in a webpage, all 58 webpages were correctly classified. Result obtained revealed that the approach can reliably be applied in automatic harvesting of Yoruba monolingual corpus from the internet.
Changing Paradigms in the Management of Gout
Authors: Nuki George , Riches Philip
Published: June 2020

The incidence and prevalence of gout have increased, as have comorbid obesity, diabetes mellitus, hypertension, chronic kidney and cardiovascular disease. Gout is now the commonest type of inflammatory arthritis despite availability of safe, effective and potentially ‘curative’ urate-lowering drugs. Modern imaging studies show that gout is a chronic inflammatory crystal deposition disorder even at the first acute attack and they illuminate the need to eliminate urate crystals by continuing reduction of the serum urate below its solubility threshold. Clinical outcomes, adherence to therapy and quality of gout care in primary care and hospital practice can be greatly improved by better use of allopurinol and flare prophylaxis, greater patient engagement, education and follow-up, and by nurse-led models of care that employ a ‘treat-to-target’ principle (SUA< 360 or 300μmol/l). Advances in understanding the physiology and genetic control of urate transport in the kidney and gut have led to novel, more selective uricosuric drugs, and basic research on mediators of urate crystal-induced inflammation has pointed to alternative therapeutic targets for treating and preventing gout flares. Current guidelines for the management of gout and indications for the use of some more recently introduced drugs; febuxostat, lesinurad, pegloticase and interleukin-1 antagonists are also briefly reviewed.
Talaromyces (Penicillium) Species Infection in the Central Nervous System
Authors: Chuah Chuan Huan , Ong Yu Chen , Kong Boon Huei , Woo Yen Yen , Wong Peng Shyan , Leong Kar Nim , Chow Ting Soo
Published: June 2020

Talaromycosis typically occurs as an opportunistic infection among immunocompromised individuals. Infection caused by species other than T. marneffei is uncommon. While most reported cases describe infection in the lungs, we report an extremely rare intracranial Talaromyces species infection. This 61-year-old with end-stage renal disease who was unwell for the previous two months, presented with fever and worsening confusion lasting for three days. Lumbar puncture was suggestive of meningitis. Cerebrospinal fluid (CSF) culture was later confirmed to be Penicillium chrysogenum. The patient was co-infected with Group B Streptococcus sepsis. He improved with amphotericin B and ceftriaxone and was discharged with oral itraconazole for four weeks. However, he died of unknown causes two weeks later at home. Talaromyces species infection in the central nervous system is uncommon. This case highlighted a rare but life-threatening fungal meningitis. Among the four reported cases worldwide, none of the patients survived.
Microangiopathic Haemolytic Anaemia and Thrombocytopenia Due to Combined Vitamin B12 and Folate Deficiency Masquerading as Thrombotic Thrombocytopenic Purpura
Authors: Lee Kee Tat , Teoh Ching Soon , Chew Teng Keat , Goh Ai Sim
Published: June 2020

Vitamin B12 deficiency and folate deficiency are common causes of macrocytic anaemia and both are important for many cellular processes. These deficiencies could be due to inadequate dietary intake, impaired absorption or drug ingestion. We present a case of a 47-year-old male with a history of diffuse large B-cell lymphoma (DLBCL) who was admitted for fatigue, persistent frontal headache and left upper-quadrant abdominal pain. Further investigation showed that he had pancytopenia with microangiopathic haemolytic anaemia (MAHA) and intracranial bleeding (ICB). Serum vitamin B12 and folate were later found to be low and a diagnosis of combined vitamin B12 and folate deficiency mimicking thrombotic thrombocytopenic purpura (TTP) was made. The patient responded well to vitamin B12 and folate replacement.
Physical Activity and Moving More for Health
Authors: Crooke Ranulf , Haseler Christine , Haseler Tobias , Collins Jack , Crockett Andrew
Published: June 2020

Non-communicable diseases are a leading cause of death and levels are rising. Lifestyle changes, including physical activity, have benefits in all-cause mortality, cardiovascular and metabolic disease, respiratory conditions and cognitive and mental health. In some cancers, particularly colon, prostate and breast, physical activity improves quality of life and outcomes before, during and after treatment. Sedentary time is an independent risk factor with adverse effects in hospitalised patients. Mechanisms include anti-inflammatory effects and augmentation of physiological and neuroendocrine responses to stressors. Engaging patients is affected by barriers: for clinicians, awareness of guidelines and personal physical activity levels are important factors; for patients, barriers are influenced by life events, socioeconomic and cultural factors. Interventions to increase activity levels are effective in the short- and medium-term, including brief interventions. Face-to-face is more effective than remote advice and behavioural interventions are more effective than cognitive. There are no published guidelines for physical activity in hospitalised patients.
Improving Intravenous Fluid Prescribing
Authors: Mathur Abhinav , Johnston Gwen , Clark Laura
Published: June 2020

Intravenous (IV) fluid therapy is integral to the care of patients in hospitals but involves complex decisions. Errors in fluid prescribing are common, leading to significant harm due to inappropriate fluid type, rate or volume. British national guidelines have been developed to improve prescribing, but adherence has been generally poor. The Scottish Government has set up a National IV Fluid Improvement Programme to implement national guidelines throughout Scotland. This article reviews the need for such guidance and discusses how the Scottish National IV Fluid Improvement Programme hopes to achieve its aims across Scotland. This may provide an improvement framework for fluid prescribing in other regions.
Rcpe Symposium: Remote and Rural Medicine
Authors: MacLeod Jean , McDowall Colin
Published: June 2020

The Remote & Rural conference 2019 – Creating a Community of Care was held on 11 November 2019 at the Centre for Health Sciences, Raigmore Hospital, Inverness, UK.
Os fatores éticos e democráticos das comunicações precedentes da prática jornalística
Authors: Luz Suelyn Cristina Carneiro da
Published: June 2020

MARTINS, Helena. Comunicações em tempos de crise: economia e política. São Paulo: Expressão Popular, Fundação Rosa Luxemburgo, 2020.
Mg/Ca, Sr/Ca and stable isotope from planktonic foraminifera T. sacculifer: testing a multi-proxy approach for inferring paleo-temperature and paleo-salinity
Authors: Dissard Delphine , Reichart Gert Jan , Menkes Christophe , Mangeas Morgan , Frickenhaus Stephan , Bijma Jelle
Published: June 2020

Abstract. Over the last decades, sea surface temperature (SST) reconstructions based on the Mg/Ca of foraminiferal calcite have frequently been used in combination with the δ18O signal from the same material, to provide estimates of δ18O of the water (δ18Ow), a proxy for global ice volume and sea surface salinity (SSS). However, because of error propagation from one step to the next, better calibrations are required to increase accuracy and robustness of existing isotope and element to temperature proxy-relationships. Towards that goal, we determined Mg/Ca, Sr/Ca and the oxygen isotopic composition of Trilobatus sacculifer (previously referenced as Globigerinoides sacculifer), collected from surface waters (0–10 m), along a North-South transect in the eastern basin of the tropical/subtropical Atlantic Ocean. We established a new paleo-temperature calibration based on Mg/Ca, and on the combination of Mg/Ca and Sr/Ca. Subsequently, a sensitivity analysis was performed in which, one, two, or three different equations were considered. Results indicate that foraminiferal Mg/Ca allow for an accurate reconstruction of surface water temperature. Combining equations, δ18Ow can be reconstructed with a precision of about ± 0.5 ‰. However, the best possible salinity reconstruction based on locally calibrated equations, only allowed reconstruction with an uncertainty of ± 2.49. This was confirmed by a Monte Carlo simulation, applied to test successive reconstructions in an ideal case, where explanatory variables are known. This simulation shows that from a pure statistical point of view, successive reconstructions involving Mg/Ca and δ18Oc preclude salinity reconstruction with a precision better than ± 1.69 and hardly better than ± 2.65, due to error propagation. Nevertheless, a direct linear fit to reconstruct salinity based on the same measured variables (Mg/Ca and δ18Oc) was established. This direct reconstruction of salinity lead to a much better estimation of salinity (± 0.26) than the successive reconstructions.