bluuebunny/crossref_metadata_2025 huggingface dataset:
Changing the Shape of Watt-Ampere Characteristic of LEDs Based upon GaP (λ = 590 nm) Irradiated by Gamma-Quanta
Authors: Gradoboev Alexander V. , Orlova Ksenia N. , Simonova Anastasiia V.
Published: September 2019

There are two distinctive regions can be identified (low (LC) and high currents (HC)) of a watt-ampere (W-I) characteristic of initial LEDs based upon GaP with 590 nm wavelength. The established patterns differ in the exponent. At the same time, the LC region corresponds to an increase in the efficiency of conversion of operating current into light radiation, and the HC region is a slow decline with an increase in the operating current. As a result of irradiation with gamma-quanta in the passive power mode, the change in the shape ofW-Icharacteristic is established, which can be characterized by an increase in the threshold current separating the LC and HC regions with an increase in the irradiation dose. The change in the emissive power of the LEDs and the shift of the threshold current occurs in two stages: in the first stage, the emissive power decreases due to radiation-stimulated rearrangement of the initial defect structure. At the same time, with an increase in the radiation dose, a partial recovery of the emissive power is observed against the background of its overall decrease. At the end of the first stage, the dependence of the damage coefficient on the operating current density in measurements of theW-Icharacteristics is manifested explicitly. The second stage of reducing the emissive power due to the introduction of radiation defects. In this case, the damage coefficient does not depend on the working current density, and the observed differences are due to the fact that by the end of the first stage its contribution to the overall reduction in emissive power is inversely proportional to the working current density. The established patterns can be used at the stage of designing the LEDs to substantiate the choice of the optimal value of the operating current density and to predict the resistance to irradiation with gamma rays.
Clathrin mediated endocytosis - Methods and Protocols
Authors: Monti Manuela
Published: September 2019

Clathrin is one of the interesting “moonlighting proteins” which perform multiple functions relevant to biochemical or biophysical aspects. It can be considered the master regulator of vesicular trafficking being the main player of the Clathrin-Mediated Endocytosis (CME).....
Evaluation of thyroid nodules classified as Bethesda category III on cytology and their malignancy rate: An institutional experience
Authors: Almahari Sayed Ali , Harb Zainab , Alshaikh Safa
Published: September 2019

Background:

Thyroid gland nodules are common and fine-needle aspiration (FNA) is the gold standard for screening those nodules. The Bethesda system for reporting thyroid cytolopathology standardized reporting thyroid nodules aspirations, but atypia of undetermined significance or follicular lesion of undetermined significance (Bethesda category III) was the most controversial category. The aim of our study is to review our institutional experience and analyze the clinical implications of making a diagnosis of AUS/FLUS (Bethesda category III).

Methods:

This is a retrospective study of an 889 thyroid FNAs from 825 patients in Salmaniya Medical Complex, during (January 2013–December 2017).

Results:

The most common cause for designating cases as AUS/FLUS (Bethesda category III) was the presence of features suggestive of papillary thyroid carcinoma, but not quite fulfilling the criteria for such diagnosis. Ninety-six cases were diagnosed as AUS/FLUS (10.7%), in which 26 (27%) patients underwent surgery without repeating the FNA, 25 (26%) underwent a second FNA and 43 (44.7%) patients were followed up by ultrasound. On repeating the FNA, 1 (4%) was unsatisfactory, 13 (52%) were benign, 10 (40%) were AUS/FLUS, and only 1 (4%) was categorized as malignant. Thirty cases were surgically excised, in which 4 (13.3%) were diagnosed as follicular adenoma, 2 (6.6%) as Hurthle cell adenoma, 9 (30%) as multinodular goiter, 5 (16.6%) as multinodular goiter with Hashimoto thyroiditis, 1 (3.3%) as colloid nodule with Hashimoto thyroiditis, and 9 (30%) as papillary thyroid carcinoma. Among all the cases diagnosed initially as AUS/FLUS (Bethesda category III), 9 (9.3%) cases were diagnosed as papillary thyroid carcinoma.

Conclusion:

Diagnostically, we almost meet the international standards of designating cases with AUS/FLUS (Bethesda category III) and approximate the risk of malignancy. However, the clinical management's guidelines should be followed to decrease the risk of unnecessary surgeries and their complications. There is a statistically significant correlation between the age and gender with the final histopathology report, respectively.
La Fille Mal Gardée: Film Between Artistic Freedom and Selective Memory
Authors: Petek Polona , Roter Petra
Published: September 2019

Over the past decade, the social sciences have witnessed an upsurge of interest in explorations of memory as it relates to the consolidation of nations, formation of new states and post-conflict reconstruction. In this context, remembrance is a process based on asymmetric power relations: selected collective perceptions of the dominant community are usually promoted, whereas the memories of non-dominant (minority) communities remain marginalised or they are perceived as opposing, even hostile “others”. This article seeks to broaden the prevailing focus in social sciences by employing an interdisciplinary approach to discuss the controversial Russian film Matilda (dir. Alexei Uchitel, 2017), a costume drama about the love affair between the future Tsar Nikolai II and prima ballerina Matilda Feliksovna Kschessinskaya, and its reception in the Russian Federation and elsewhere. The article focuses on the issue of conflict between artistic freedom and the process of remembrance in the formation and consolidation of the nation and, indirectly, the nation-state, whereby film is taken as a tool for (selective) remembrance of history.
Homage to a New Town in an Old One: Dequel’s Bust of Pier Paolo Vergerio il Giovane
Authors: Čebron Lipovec Neža
Published: September 2019

The concept of collective memory raises fundamental questions regarding the assessment of heritage, especially of built heritage in contested spaces. The simultaneous presence of different groups in conflict introduces into the space parallel memory discourses that can be recognised both in the built environment as well as in public sculpture, and both can be read as a symbolic marking of space (Veschambre, 2008). The urban space of northern Istria, where the Italian and Slovene communities have become intertwined throughout history, were drastically marked by the political and historic events of the mid-20th century. Post-war conflict-solving processes lead and an ongoing process of “ethnic metamorphosis” (Purini, 2010) in the region came to a peak when the majoritarian Italian-speaking population of the urban area emigrated, while the space was settled by newcomers from inner Slovenian regions and other Yugoslav republics. Tensions between Slovenes and Italians arose in the early 20th century, especially from the period of Fascist oppression and violence against the Slovene population. Nevertheless, the antifascist struggle united the two ethnic groups, specifically within the Communist ideology, so after WWII the area of the so-called Zona B of the Free Territory of Trieste was marked by the ideal of fratellanza, the brotherhood between Italians and Slovenes in Istria. A monument to this ideal was created by a sculptor from Capodistria, Oreste Dequel, who is unknown in the Slovene context. The sculpture represented the Protestant Bishop of Capodistria, Pier Paolo Vergerio il Giovane, a friend of the key Slovene Protestant Primož Trubar. Despite the then leading Socialist Realist aesthetics, the artist managed to intertwine in the artwork, using a subversive approach, several collective memories.
The Unsayable Mystery of the Holy: Hölderlin’s Late Poetry
Authors: Kryeziu Sazan
Published: September 2019

Being is given many designations in Hölderlin’s poetry, but we will focus on the question of Being as the holy. Being as the holy bespeaks the poet in a message to which he responds by articulating the address in words. Following Heidegger’s thought that poetry (poiesis) is the essence of language and of all arts, and juxtaposing it with Wittgenstein’s view of language, we will find out that to trace the mystery of language back to its origin means placing ourselves outside of the world, passing thus into the realm of silence. Drawing an analogy between Hölderlin’s idea of the holy as the immediate and Wittgenstein’s conception of the mystical, my thesis assumes that language is precisely what poetry cannot name.
“One Must Remember Towards Tomorrow”*: A Pragmatic Study of the Expression of Memory in the Poetry of Juan Ramón Jiménez
Authors: Pihler Ciglič Barbara
Published: September 2019

Starting from temporality as the organizing principle of any communicative situation, the present study investigates the use of verbal paradigms in Spanish when expressing memory and forgetfulness in a fictional speech act, such as poetry. Every text, including poetic, is a pragmatic unit of interaction in which an enunciator transmits a linguistic fact in order to awaken certain effects in the addressee. Nevertheless, successful communication depends not only on what is actually said, but also and above all, on what a reader or listener can deduce from what is said. Linguistic communication is not only an encoding-decoding process, but mainly the complementary process of ostension and inference, as Sperber and Wilson (1986) show within the theory of relevance. The explicit and implicit meanings of statements can always be understood only through the context, which is constantly changing as the presumption in the process of communication. Subsequently, the presumption that poetic language provokes a specific implicit meaning in the reader enables the establishment of complex relations between the significance and plurality of contexts within the lyrical discourses.The study focuses on two collections of poems, Eternidades (1918) and Piedra y Cielo (1919), written by the great Spanish poet Juan Ramón Jiménez, and explores the possibilities of explicit and implicit meanings of time and memory that are incited by the verbal paradigms. Both collections, which represent the beginning of a new era in the poet’s creation, are characterized by intense self-reflection. Time, forgetfulness and memory are, similar to the poetic word itself, the essential means that enable the poet to establish individual moments of eternity within the implications of lyrical communication.
Joža Lovrenčič in makaronska latinščina v Sholarju iz Trente
Authors: Božič Anja , Movrin David
Published: September 2019

Članek obravnava literarno ustvarjanje dr. Joža Lovrenčiča (1890–1952), slovenskega pesnika, pisatelja, prevajalca in klasičnega filologa. Prinaša nekatere življenjepisne informacije in na njihovi podlagi obravnava zlasti njegovo afiniteto do rimske in grške antike. S tem v zvezi se posveča njegovi mladostni povesti Med Scilo in Karibdo in epski pesnitvi Sholar iz Trente (1939). Še posebej pri slednji je najti vrsto navezav in citatov iz klasičnega sveta, hkrati pa pesnitev na več mestih s slovenščino meša latinske besede ali v latinščino celo povsem preide. Te odlomke je tudi vsebinsko mogoče povezati z literarnim slogom makaronske latinščine.
Assessment of Nutrients Levels in Groundwater within the Lower Pra Basin of Ghana
Authors: Dorleku M. K. , Affum A. O. , Tay C. K. , Nukpezah D.
Published: September 2019

The level of concentration of nitrates, phosphates, and sulphates was determined in groundwater within the Pra Basin to ascertain the degree of anthropogenic influence via the application of fertilizer and other agro-chemical to farmlands by farmers. Sixty-five (65) boreholes in forty-five (45) communities were analysed between January and April 2012 to cover the dry season and between June and October 2012 to cover the wet season. The results show that nitrate for both seasons range between 0.011 mg/l and 5.01 mg/l and therefore within the WHO (2006) guideline value of 10 mg/l, whilst that of phosphate range between 0.01 mg/l and 3.08 mg/l and therefore outside the USEPA guideline value of 2.5 mg/l. Sulphate recorded a range between 1.60 and 96.2 mg/l and therefore within the WHO (2006) guideline value of 250 mg/l. The concentration levels of the two nutrients of the parameters, nitrates and phosphate were correlated against borehole depth and the results show a weak positive and negative correlation for nitrate and phosphate respectively. There was thus, an indication that the levels of all parameters, nitrate, phosphate and sulphate are not yet a threat to groundwater in the basin.
A multi-fluid model of the magnetopause
Authors: Manuzzo Roberto , Califano Francesco , Belmont Gerard , Rezeau Laurence
Published: September 2019

Abstract. Observation of the solar wind – magnetosphere boundary provides a unique opportunity to investigate the physics underlying the interaction between two collisionless magnetized plasmas with different temperature, density and magnetic field topology. Their mixing across the interface as well as the boundary dynamics are affected by the development of fluid (and kinetic) instabilities driven by large scale inhomogeneities in particle and electromagnetic fields. Building up a realistic initial equilibrium state of the magnetopause according to observations is still a challenge nowadays. In this paper we address the modeling of the particles and electromagnetic fields configuration across the Earth's magnetopause by means of a three-fluid analytic model. The model relies on one hot and one cold ion population and on a neutralizing electron population. The goal is to build up an analytic model able to reproduce as closely as possible the observations. Some parameters of the model are set by using a fit procedure aiming at minimizing their difference with respect to experimental data provided by the Magnetospheric MultiScale mission. All the other profiles, concerning the electron pressure and the relative densities of the cold and hot ion populations, are calculated in order to satisfy the fluid equilibrium equations. Finally, by means of a new tri-fluid code, we have checked the stability of the large-scale equilibrium model for a given experimental case and given the proof that the system is unstable to reconnection. This model could be of interest for the interpretation of satellite results and for the study of the dynamics at the boundary between the Magnetosphere and the solar wind.
Paleoenvironmental response of midlatitudinal wetlands to Paleocene–early Eocene climate change (Schöningen lignite deposits, Germany)
Authors: Methner Katharina , Lenz Olaf , Riegel Walter , Wilde Volker , Mulch Andreas
Published: September 2019

Abstract. The early Paleogene is marked by multiple negative carbon isotope excursions
(CIEs) that reflect massive short-term carbon cycle perturbations that
coincide with significant warming during a high-pCO2 world, affecting
both marine and terrestrial ecosystems. Records of such hyperthermals from
the marine–terrestrial interface (e.g., estuarine swamps and mire deposits)
are therefore of great interest as their present-day counterparts are
highly vulnerable to future climate and sea level change. Here, we assess
paleoenvironmental changes of midlatitudinal late Paleocene–early Eocene
peat mire records along the paleo-North Sea coast. We provide carbon isotope
data of bulk organic matter (δ13CTOC), organic carbon
content (%TOC), and palynological data from an extensive peat mire
deposited at a midlatitudinal (ca. 41∘ N) coastal site
(Schöningen, Germany). The δ13CTOC data show a carbon
isotope excursion of −1.3 ‰ (mean decrease in δ13CTOC; −1.7 ‰ at the onset of CIE) coeval
with a conspicuous Apectodinium acme. Due to the exceptionally large stratigraphic
thickness of the CIE at Schöningen (10 m of section) we established a
detailed palynological record that indicates only minor changes in
paleovegetation leading into and during this event. Instead, paleovegetation
changes mostly follow natural successions in response to changes along the
marine–terrestrial interface. The available age constraints for the
Schöningen Formation hamper a solid assignment of the detected CIE to a
particular hyperthermal such as the Paleocene–Eocene Thermal Maximum
(PETM) or any succeeding hyperthermal event such as the Eocene Thermal
Maximum 2 (ETM2). Compared to other nearby peat mire records (Cobham, UK; Vasterival, F) it
appears that wetland deposits around the Paleogene North Sea have a
consistent CIE magnitude of ca. −1.3 ‰ in δ13CTOC. Moreover, the Schöningen record shares major
characteristics with the Cobham Lignite PETM record, including evidence for
increased fire activity prior to the CIE, minor plant species change during
the hyperthermal, a reduced CIE in δ13CTOC, and drowning
of the mire (marine ingressions) during much of the Schöningen CIE
event. This suggests that either the Schöningen CIE reflects the PETM or
that early Paleogene hyperthermals similarly affected paleoenvironmental
conditions of a major segment of the paleo-North Sea coast.
A full Stokes subgrid model for simulation of grounding line migration in ice sheets using Elmer/ICE(v8.3)
Authors: Cheng Gong , Lötstedt Per , von Sydow Lina
Published: September 2019

Abstract. The full Stokes equations are solved by a finite element method for simulation of large ice sheets and glaciers. The simulation is particularly sensitive to the discretization of the grounding line which separates the ice resting on the bedrock and the ice floating on water and is moving in time. The boundary conditions at the ice base are enforced by Nitsche's method and a subgrid treatment of the elements in the discretization close to the grounding line. Simulations with the method in two dimensions for an advancing and a retreating grounding line illustrate the performance of the method. It is implemented in the two dimensional version of the open source code Elmer/ICE.
ULTRA-HIGH RESOLUTION IMAGING OF FACADES AND VERTICAL INFRASTRUCTURE BY CARBORNE SAR AND AIRBORNE CSAR
Authors: Palm S. , Sommer R. , Tessmann A. , Stilla U.
Published: September 2019

Abstract. In this paper we propose a strategy to focus ultra-high resolution single channel carborne SAR and airborne circular SAR (CSAR) data to image facades and vertical infrastructure. We illustrate the related theoretical background and the design of an optimal focusing geometry for carborne SAR applications while using backprojection focusing techniques. Of particular interest is thereby the determination of the minimum distance and orientation of the facade to the radar sensor. Potential image distortions due to a wrong choice of these parameters are illustrated. Effects on the final resolution of the data due to the rotation of the focusing geometry compared to typical airborne SAR are discussed. We validated the strategy by driving on conventional roads illuminating facades with an experimental mobile radar mapping (MRM) sensor operating at 300 GHz. We further present an adapted version of the proposed strategy to focus vertical infrastructure in CSAR data sets. By extracting the center coordinate and the principal orientation of an object from GiS data, the focusing plane is designed arbitrarily in the 3D space. For the CSAR data set, a radar sensor particularly designed for circular flight trajectories operating at 94 GHz was evaluated. An electrical pylon was chosen as potential target. In both applications, the final images show a high level of detail. The combination of proposed strategy and radar sensor with very high bandwidth is capable of subcentimeter imaging of facades. The height, shape and dimensions of objects can be extracted directly from the image geometry at very high accuracy.
ADVERSARIAL DOMAIN ADAPTATION FOR THE CLASSIFICATION OF AERIAL IMAGES AND HEIGHT DATA USING CONVOLUTIONAL NEURAL NETWORKS
Authors: Wittich D. , Rottensteiner F.
Published: September 2019

Abstract. Domain adaptation (DA) can drastically decrease the amount of training data needed to obtain good classification models by leveraging available data from a source domain for the classification of a new (target) domains. In this paper, we address deep DA, i.e. DA with deep convolutional neural networks (CNN), a problem that has not been addressed frequently in remote sensing. We present a new method for semi-supervised DA for the task of pixel-based classification by a CNN. After proposing an encoder-decoder-based fully convolutional neural network (FCN), we adapt a method for adversarial discriminative DA to be applicable to the pixel-based classification of remotely sensed data based on this network. It tries to learn a feature representation that is domain invariant; domain-invariance is measured by a classifier’s incapability of predicting from which domain a sample was generated. We evaluate our FCN on the ISPRS labelling challenge, showing that it is close to the best-performing models. DA is evaluated on the basis of three domains. We compare different network configurations and perform the representation transfer at different layers of the network. We show that when using a proper layer for adaptation, our method achieves a positive transfer and thus an improved classification accuracy in the target domain for all evaluated combinations of source and target domains.
A SEMI-SUPERVISED APPROACH TO SAR-OPTICAL IMAGE MATCHING
Authors: Hughes L. H. , Schmitt M.
Published: September 2019

Abstract. Matching synthetic aperture radar (SAR) and optical remote sensing imagery is a key first step towards exploiting the complementary nature of these data in data fusion frameworks. While numerous signal-based approaches to matching have been proposed, they often fail to perform well in multi-sensor situations. In recent years deep learning has become the go-to approach for solving image matching in computer vision applications, and has also been adapted to the case of SAR-optical image matching. However, the hitherto proposed techniques still fail to match SAR and optical imagery in a generalizable manner. These limitations are largely due to the complexities in creating large-scale datasets of corresponding SAR and optical image patches. In this paper we frame the matching problem within semi-supervised learning, and use this as a proxy for investigating the effects of data scarcity on matching. In doing so we make an initial contribution towards the use of semi-supervised learning for matching SAR and optical imagery. We further gain insight into the non-complementary nature of commonly used supervised and unsupervised loss functions, as well as dataset size requirements for semi-supervised matching.
MODELLING WIDE-ANGLE LENS CAMERAS FOR METROLOGY AND MAPPING APPLICATIONS
Authors: Jarron D. , Shahbazi M. , Lichti D. , Radovanovic R.
Published: September 2019

Abstract. Wide-angle lenses typically offer fields of view greater than 70°, which are utilized in a variety of imaging, mapping, and navigation applications. Wide-angle lenses are commonly modelled using the central perspective model, compensating for lens distortions through a series of additional parameters. The more extreme the distortions, the further the reality of the lens matches the collinearity equations that define the central perspective model. Fisheye lenses are modelled differently because their fields of view are so wide (typically 180°) that the collinearity model is not applicable. This work studied the effects of modelling wide-angle lenses using both the conventional central perspective model and the fisheye model to determine which model best fits the observations and models the distortions more precisely and accurately. These results were produced by generating observations in a dedicated indoor calibration facility at the University of Calgary: an 11 m × 11 m × 4 m field comprising 291 signalized photogrammetry targets. Multiple free-network, self-calibrating bundle adjustments were performed using different models and different cameras. The results of the self-calibrating bundle adjustments were then utilized in a check adjustment on independent sets of check images to validate their accuracy. Two cameras, a Ladybug5 and a GoPro Hero5, were tested. The GoPro was also calibrated using a checkerboard target pattern, and the results were compared to those of the 3D calibration target-field. The results of the bundle adjustments determined that the fisheye model describes the distortions more precisely in both wide-angle camera systems.
Particle clustering and subclustering as a proxy for mixing in geophysical flows
Authors: Chakraborty Rishiraj , Coutino Aaron , Stastna Marek
Published: September 2019

Abstract. The Eulerian point of view is the traditional theoretical and numerical tool to describe fluid mechanics. Some modern computational fluid dynamics codes allow for the efficient simulation of particles, in turn facilitating a Lagrangian description of the flow. The existence and persistence of Lagrangian coherent structures in fluid flow has been a topic of considerable study. Here we focus on the ability of Lagrangian methods to characterize mixing in geophysical flows. We study the instability of a strongly non-linear double-jet flow, initially in geostrophic balance, which forms quasi-coherent vortices when subjected to ageostrophic perturbations. Particle clustering techniques are applied to study the behavior of the particles in the vicinity of coherent vortices. Changes in inter-particle distance play a key role in establishing the patterns in particle trajectories. This paper exploits graph theory in finding particle clusters and regions of dense interactions (also known as subclusters). The methods discussed and results presented in this paper can be used to identify mixing in a flow and extract information about particle behavior in coherent structures from a Lagrangian point of view.
La mémoire inquiétée: La capacité de la mémoire face aux dilemmes de l’agir humain juste et accueillant
Authors: Contreras Tasso Beatriz Eugenia
Published: September 2019

Nous nous référerons dans cet article à la mémoire de l’homme, incarné et historique, déterminé par les médiations spatio-temporelles et exposé aux dilemmes éthiques que doit affronter l’ipséité dans sa capacité d’accueillir l’autre telle que la définit Ricœur. Notre réflexion vise la mémoire inquiétée par des médiations propres à la condition existentielle et corporelle du soi moderne, dans un contexte d’ébullition culturelle et technologique. Un tel contexte a en effet des conséquences qui affectent aussi bien l’identité personnelle et collective, que l’exercice des capacités du soi agissant et souffrant – et tout spécialement celui de sa mémoire. Nous examinerons la dimension tant réceptive que dynamique de la mémoire exposée aux fragilisations qui affectent l’identité narrative humaine, en déterminant ses pouvoirs qui laissent des traces au niveau de la conscience et du corps. Nous terminerons enfin notre réflexion par une analyse des effets volontaires et involontaires qui mettent en question la capacité même de la mémoire, en influant sur l’imagination et sur la réponse éthique du soi.
Democratic firms and economic success. The co-op model
Authors: Cabaleiro Casal María José , Iglesias Malvido Carlos , Martínez Fontaíña Rocío
Published: September 2019

This paper analyzes how co-operative principles, particularly democratic management, affect the co-op’s economic objective. The theoretical model specifies the characteristics presented by the production function so democracy generates positive net income. Costs derived from maintaining the one person one vote criterion are explicitly incorporated into this function upon new membership. The results show that democracy contributes to the economic success when the decision-making strategy followed by the partners considers all cooperative principles, especially when a retained earnings policy is regularly applied. This study can be extended to all of Social Economy firms concerned about reinforcing democratic institutions through the business sector. This study can be extended to all of Social Economy firms concerned about reinforcing democratic institutions through the business sector.
Sustainable Development of Vietnam’s Marine Tourism
Authors: Dien Nguyen Xuan , Hoa Ho Thi , Huong Nguyen Thi Thu , Thuy Le Thi , Nga Nguyen Thi Quynh , Nguyen Pham Thuy
Published: September 2019

Undoubtedly, marine tourism of Vietnam has successfully creating a new aspect for potential marine economy. However, the development of marine tourism in Vietnam still faces many difficulties, which pose some basic problems for marine tourism when aiming at sustainable development, in term of economy, society, and environment. This article will analyze the current situation of Vietnam’s marine tourism towards sustainability based on three economic- social- environment pillars. Moreover, the authors will propose some recommendations to develop Vietnam’s marine tourism in a sustainable way in the future.
Identification and Characterization of Critical Sites for Small Pelagic Fish in the Coastal Marine Area of Senegal, West Africa
Authors: Ismaïla Ndour , Assiatou Baldé , Ndiaga Thiam , Modou Thiaw , Saliou Faye , Massal Fall , Mika Diop
Published: September 2019

Better management of coastal marine resources generally requires good knowledge of habitats and resources. This need led to the performance of an identification and bioecological characterization study of critical sites for small pelagics in the Senegalese coastal marine zone. Biological and ecological data were collected using beach seines (12 to 28 mm mesh) and surface drifting gillnets (28 to 36 mm mesh) at sites identified by fishermen on the basis of surveys. The results of the study highlight the bioecological characteristics of these sites: (i) the Port-Baie Hann site - a nursery and spawning site with a high diversity for the target species; it is under marine pollution threat; (ii) the Mbodiène-Ngazobil site, with high diversity for target species and the Kafountine-Cap site are nursery and spawning sites under high fishing pressure, (iii) the Diakhanor-Sangomar site - a spawning site under the potential threat of exploration of offshore Sangomar oil in addition to the high fishing pressure. This work is a first flagship contribution to a process that should lead to the development and control of new tools for the effective and sustainable management of small pelagics at national and regional scales.
Bilateral Pyelonephritis in a Cat with Multiple Urinary Malformations Including Ureteral Pseudodiverticulosis
Authors: Robin Elisabeth , Coste Margaux , Maurey Christelle
Published: September 2019

Ureteral pseudodiverticulosis is an unusual acquired abnormality in humans and dogs. This report describes the first feline case of ureteral pseudodiverticulosis, associated with right retrocaval ureter and malposition of the uretero-vesical junctions, in the context of pyelonephritis. The coexistence of pseudodiverticulosis with other urinary abnormalities suggested that this lesion should be considered in other patients with urinary pathology.
Modified Triple Tibial Osteotomy for Combined Cranial Cruciate Ligament Rupture, Tibial Deformities, or Patellar Luxation
Authors: Livet Véronique , Taroni Mathieu , Ferrand François-Xavier , Carozzo Claude , Viguier Eric , Cachon Thibaut
Published: September 2019

Proximal tibial deformities or patellar luxation may occur concurrently with cranial cruciate ligament rupture. The objective of this study was to describe the management of those conditions with a modified triple tibial osteotomy (TTO) in nine dogs. Medical records of dogs who underwent a modified TTO were reviewed. The mean pre- and postoperative patellar tendon angles were 104.2° and 92.9°, respectively. The mean pre- and postoperative mechanical medial proximal tibial angles were 99.5° and 91.5°, respectively. Medial patellar luxation was present in five dogs (55.6%) and treated in all five dogs with a tibial crest transposition. Tibial torsion was grossly resolved in two dogs (22.2%). Perioperative distal tibial crest fracture was treated by pins and a figure-of-eight tension-band wire in five dogs (55.6%). One major (surgical site infection) and three minor postoperative complications were observed. At the last follow-up, seven dogs (77.8%) had no lameness, one dog (11.1%) had mild lameness, and one dog (11.1%) had moderate lameness. Radiographic evaluation showed good (2/9; 22.2%) to excellent (7/9; 77.8%) bone healing. The visual analog scale evaluation revealed good-to-excellent owner satisfaction. Cranial cruciate ligament rupture, tibial deformities, and medial patellar luxation are difficult to treat together. A modified TTO may be used to treat these conditions.
Bacterial flora in hospitals of the Salvadoran Social Security Institute 2010-2017
Authors: Franco Escobar Víctor David
Published: September 2019

Objective. To determine which are the bacteria most frequently isolated in the cultures of greater demand in general hospitalization of the Salvadoran Social Security Institute facilities (ISSS) between 2010 and 2017. Methodology. Quantitative, retrospective study on bacterial isolates of greater hospital cultures demand, contents in the ISSS bacteriology archives. Results. 79 693 culture reports generated between 2010 and 2017 in the 10 ISSS hospitals were reviewed, 58.5% (46 681 cultures) were suitable for analysis, mainly 39.9% urine, 17.5% blood, 15.5% abscess, lower respiratory tract 8.4% and surgical wound infections 2.7%. In 54.8%, enterobacteria, coagulasepositive staphylococci in 20.0%, and non-fermenting Gram-negative bacilliin 14.2% were the most common finding, according to nosological entity Staphylococcus aureus (SAU) predominated in bacteremias, abscesses, diabetic foot infections and catheter related infections, Klebsiella pneumoniae (KPN) in lower airway, Pseudomona aeruginosa (PAE) in pressure ulcers, Streptococcus agalactiae (SGA) in female reproductive infection and for the rest Escherichia coli (ECO) prevailed. Conclusion. The proportion of positivity obtained in cultures in hospitalization wards was around 60%, the main demand was for urinary infections, septicemias or bacteremia and abscesses evaluation, Gramnegative enterobacteria, mainly Escherichia coli and Klebsiella pneumoniae and coagulase positive cocci, mainly Staphylococcus aureus and epidermidis and non-fermenters like Pseudomona aeruginosa were the most common findings.
Advertencias Sanitarias y empaquetado neutro de productos de tabaco en la percepción de los salvadoreños
Authors: Sarmiento López Alejandra María , De Paz Flores Joel Adonay
Published: September 2019

Introducción. El CMCT de la OMS, establece que una medida para disminuir el consumo de tabaco se encuentran las advertencias sanitarias, como medida relativa al empaquetado y etiquetado de los productos de tabaco. En El Salvador las regulaciones sobre el empaquetado, establecen advertencias del 50% sobre los productos de tabaco, ya sean en paquetes con forma regular o irregular. Objetivo. Conocer la percepción de la población salvadoreña sobre las advertencias sanitarias más grandes y empaquetado neutro en la intención de fumar y en desalentar el inicio al consumo de tabaco. Metodología. Estudio cualitativo realizado a través de grupos focales en tres segmentos poblacionales: adolescentes, jóvenes y adultos. La sistematización y procedimiento con el análisis de resultados de los grupos focales fueron realizados a través de la aplicación NVivo, Versión 10. Resultados. Las advertencias sanitarias actuales evocan sensaciones negativas a la población y las que generan mayor impacto son los pictogramas de niños afectados por la exposición al humo de tabaco ajeno. Existe un alto apoyo de la población para incrementar las advertencias sanitarias y es el empaquetado neutro el que posee mayor rechazo entre la población. Conclusiones. Se hace necesario rotar las advertencias sanitarias e implementar el empaquetado neutro como medidas costo efectivas para reducir el consumo de tabaco, por lo cual deben realizarse los esfuerzos necesarios para su implementación en El Salvador.
Difficulties Facing Students in English Language Conversation
Authors: Mofareh A. Alqahtani
Published: September 2019

This study addresses the poor language proficiency of English language students, particularly in terms of their conversational skills and/or ability to achieve the desired standards of fluency in either the classroom environment or public sphere. The many factors which directly affect students' performance in speaking fluent English include the fear of making errors. The present study therefore aims to identify the perceived difficulties which language students associate with the study and utterance of English. To this end, the conducted research was descriptive in nature and sought to determine the various elements which are perceived as especially challenging for students and to devise effective solutions through appropriate teaching styles, methodologies and strategies which are driven and supported by the relevant contemporary technology. In addition to fear, certain factors relate to individuated student character and practices, and many students report feelings of shyness and potential embarrassment. Distrust also constitutes a significant obstacle, along with issues surrounding teaching methods, teacher inefficiency, and/or the lack of up-to-date pedagogies. To fully investigate this issue, a quantitative survey instrument containing multiple questions was undertaken in addition to a number of interviews with a random sample of students and teachers in order to elicit the main student challenge in speaking English. The results demonstrated that the majority of the students were unable to speak English either correctly or confidently. The percentages which varied between average, weak, and very weak, were attributed to a general weakness in English grammar, vocabulary, syntax, poor fluency in speech, low understanding  of overall grammar frameworks, and inaccurate pronunciation. In light of this, the present study sought to provide useful suggestions to resolve student conversational problems. To this end, the researcher elucidated the research problem, importance, objectives, hypotheses and methodologies, as well as drawing conclusions. Finally, the researcher outlined a number of recommendations directly relevant to resolving the complex issue.
Relationships of International Students’ L2 Vocabulary, Receptive Skills, and Strategy Use: A Pathway College Context
Authors: Aktar Tasnima , Strong Dina
Published: September 2019

A considerable amount of studies has been done on the relationship of L2 vocabulary and reading/listening, strategy use and reading/listening, and vocabulary and strategy use in different contexts among different levels of learners; however, little has been known about the relationships among all these variables with the same cohort of learners and particularly with international students including Asian students in a UK pathway college context. Furthermore, existing research on these relationships is inconclusive. This paucity and inconclusiveness invoke this attempt to understand the relationships of all these variables among pre-sessional international students. Quantitative data were collected from 31 Pre-Undergraduate (PU) and Pre-Masters (PM) international students via Strategy Inventory of Language Learning (SILL; Oxford, 1990), IELTS-style reading and listening tests, and an academic vocabulary test designed from Quizlet for class test. Results showed that there was no significant relation of vocabulary with reading and listening among the whole cohort of students and the PU group; however, there was a significant relationship between reading and listening among the whole cohort and the PU group. Among the PM group only, significant relationship was seen between vocabulary and reading. Social strategy category and some individual strategies were significantly correlated with reading among the whole cohort, and the significant correlation of social strategy category and reading was also true for the PM group. While memory strategies were significantly, positively correlated with vocabulary among the PM group, affective strategies were negatively correlated vocabulary among the PU group. Independent sample t-test revealed significant difference between the PM and PU groups on their vocabulary knowledge. Although the pattern of the relationships revealed was not always clear among these diverse international students, the findings could inform teaching L2 receptive skills with regards to vocabulary and strategies, with a view to facilitate learning of English as an L2 in a target language context.
Succession Planning and Leadership Development in a Faculty of Health Sciences
Authors: Ngcamu Bethuel Sibongiseni
Published: September 2019

BACKGROUND: The challenges in the Faculty of Health Sciences in universities are unique and complex. These dynamic faculties require decisive and strong leadership, smooth systems and business processes, succession plans and development opportunities. These challenges in these faculties are exacerbated by the fact that the roles and responsibilities of the Heads of Departments are multifaceted. Those who are heading them are not acclimatising to the responsibilities because of the lack of support to develop and succeed in their positions. This study therefor seeks to determine challenges faced by the HoDs in the Faculty of Health Sciences, and the succession plans, competences and development programmes that are in place to develop future leadership talent in a university in South Africa.

METHODS: A single case study approach was employed whereby qualitative in-depth interviews were conducted with nine HoDs and a faculty dean as well as the observation and document analysis. The grounded theory as an inductive process was used to categorise and code data where themes and trends emerged from the data.

RESULTS: Four major themes emerged from the data:

The university, faculty and departments within the faculty did not have succession plans while the strategic positions were occupied by post-retirees.

The Faculty did not have competent employees who could ascend to academic leadership positions in the faculty.

There was limited growth in the Faculty due to the absence of the developmental programmes.

There was a plethora of challenges including the shortage of office equipment, absence of the mentoring programmes, structural fragmentation and inefficiencies in the Human Resource Department (HRD).

CONCLUSIONS: A pervasive crisis was observed in this particular Faculty of Health Sciences during the turbulent times in universities. It is crucial for the HoDs to receive quality support from the administrative departments such as HRD in order for them to achieve the departmental objectives. The HoDs’ leadership capabilities and effectiveness can be enhanced by mainstreaming the human resources business systems, development, mentoring and coaching, as well as the implementation of well-coordinated succession plans.
An Implementation of Customer Relationship Management and Customer satisfaction in Banking Sector of Quetta, Balochistan
Authors: Ajmal Sadaf , -Rehman Sana-Ur
Published: September 2019

Banking industry in Pakistan has become highly competitive, bankers are putting enhanced efforts to acquire and retain customers by incorporating innovative customer relationship management (CRM) techniques. Due to rapid technology penetration, customers have rapid entrance and options to multiple financial products/services. Present study focuses on measuring customer satisfaction in the result of Bank’s CRM efforts. Research is based on the fact and evolve the theme of the study, that is to find the significant factors affect customer satisfaction, that is a center of customer relationship management (CRM) for controlling the excessive competition in Quetta banking industry. Two structured questionnaires are used based on quantitative view and hand out on a stratified sample. First questionnaire is having a data of 31 employees in the sampled banks to measure the CRM suitability while second one is having a data of 302 customers from the sampled banks to count the level of customer satisfaction. The findings show that the selected banks apply the CRM components and found that these are positively associated with customer satisfaction. Respecting the results of the bank survey, the level of CRM implementation and the relevance of its elements be unlikely from one to another bank. Findings confirm that in Quetta banking sector there is a tough competition going on as every bank (public, private) is trying its best to capture more and more customers. Banks have to bring change in their strategies to build and strengthen relationship with their customers because it is one of the major competitive advantages.
Notes on Constraint Qualifications for Second-Order Optimality Conditions
Authors: Giorgi Giorgio
Published: September 2019

In the first part of this paper we point out some basic properties of the critical cones used in second-order optimality conditions and give a simple proof of a strong second-order necessary optimality condition by assuming a “modified” first-order Abadie constraint qualification. In the second part we give some insights on second-order constraint qualifications related to second-order local approximations of the feasible set.
Exact Solution of Linear and Nonlinear Wave Equations by Double Laplace and Iterative Method
Authors: Adio Adesina K. , Ajayi Wumi S. , Bamisile Olabode O. , Akanbi Babatunde T.
Published: September 2019

A coupling of double Laplace transform with Iterative method is used to solve linear and nonlinear wave equations subject to initial and boundary conditions. The iteration process leads to disappearance of noise terms and exact solution is obtained at first iteration. Through several examples, the convenience and efficiency of the method is demonstrated, showing its usefulness to overcome difficulties associated with some existing techniques.
Słowo wstępne
Authors: Tyka Aleksander
Published: September 2019

-
THE CONTRIBUTION OF ”FOLIA TURISTICA” TO THE DEVELOPMENT OF RESEARCH AND THE POPULARISATION OF HISTORICAL KNOWLEDGE ON THE TOPIC OF TOURISM
Authors: Roszkowska Ewa
Published: September 2019

Purpose. The main objective of the work is not only to evaluate historical articles published in the "Folia Turistica" journal in 1990-2018, but also the opinion on the importance of the journal in the development and popularisation of historical knowledge on tourism, or more broadly, physical culture.

Method. In the research applied, the method of direct fact finding, external and internal criticism of the published publications and the content analysis technique were used.

Results. Research allowed identification and evaluation of historical articles published in the journal "Folia Turistica". They have been presented in comparison to the current state of knowledge, which allowed us to state that they are original in nature, in some cases, filling the gap in current knowledge or constituting a basic starting point for further research and historical studies on tourism.

Research and conclusions limitations. The source database is limited to publications in the "Folia Turistica" journal. The conclusions were broadened thanks to referring the content of these articles to the current state of historical knowledge on the history of tourism.

Practical implications. In the article, analysing publications dealing with research on the history of tourism, the possibility of undertaking further historical research in this field is indicated.

Originality. Both the content and the nature of historical publications in the journal have not been subject to in-depth analysis. The article is the first study of this type.

Type of work: The article is a review.