bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparison of past and future simulations of ENSO in CMIP5/PMIP3 and CMIP6/PMIP4 models
Authors: Brown Josephine R. , Brierley Chris M. , An Soon-Il , Guarino Maria-Vittoria , Stevenson Samantha , Williams Charles J. R. , Zhang Qiong , Zhao Anni , Braconnot Pascale , Brady Esther C. , Chandan Deepak , D'Agostino Roberta , Guo Chuncheng , LeGrande Allegra N. , Lohmann Gerrit , Morozova Polina A. , Ohgaito Rumi , O'ishi Ryouta , Otto-Bliesner Bette , Peltier W. Richard , Shi Xiaoxu , Sime Louise , Volodin Evgeny M. , Zhang Zhongshi , Zheng Weipeng
Published: February 2020

Abstract. El Niño-Southern Oscillation (ENSO) is the strongest mode of interannual climate variability in the current climate, influencing ecosystems, agriculture and weather systems across the globe, but future projections of ENSO frequency and amplitude remain highly uncertain. A comparison of changes in ENSO in a range of past and future climate simulations can provide insights into the sensitivity of ENSO to changes in the mean state, including changes in the seasonality of incoming solar radiation, global average temperatures and spatial patterns of sea surface temperatures. As a comprehensive set of coupled model simulations are now available for both palaeoclimate time-slices (the Last Glacial Maximum, mid-Holocene and Last Interglacial) and idealised future warming scenarios (one percent per year CO2 increase, abrupt four times CO2 increase), this allows a detailed evaluation of ENSO changes in this wide range of climates. Such a comparison can assist in constraining uncertainty in future projections, providing insights into model agreement and the sensitivity of ENSO to a range of factors. The majority of models simulate a consistent weakening of ENSO activity in the Last Interglacial and mid-Holocene experiments, and there is an ensemble mean reduction of variability in the western equatorial Pacific in the Last Glacial Maximum experiments. Changes in global temperature produce a weaker precipitation response to ENSO in the cold Last Glacial Maximum experiments, and an enhanced precipitation response to ENSO in the warm increased CO2 experiments. No consistent relationship between changes in ENSO amplitude and annual cycle was identified across experiments.
Snow depth mapping from stereo satellite imagery in mountainous terrain: evaluation using airborne lidar data
Authors: Deschamps-Berger César , Gascoin Simon , Berthier Etienne , Deems Jeffrey , Gutmann Ethan , Dehecq Amaury , Shean David , Dumont Marie
Published: February 2020

Abstract. An accurate knowledge of snow depth distribution in mountain catchments is critical for applications in hydrology and ecology. A recent new method was proposed to map the snow depth at meter-scale resolution from very-high resolution stereo satellite imagery (e.g., Pléiades) with an accuracy close to 0.50 m. However, the validation was mainly done using probe measurements which sampled a limited fraction of the topographic and snow depth variability. We deepen this evaluation using accurate maps of the snow depth derived from ASO airborne lidar measurements in the Tuolumne river basin, USA. We find a good agreement between both datasets over a snow-covered area of 137 km2 on a 3 m grid with a positive bias for Pléiades snow depth of 0.08 m, a root-mean-square error of 0.80 m and a normalized median absolute deviation of 0.69 m. Satellite data capture the relationship between snow depth and elevation at the catchment scale, and also small-scale features like snow drifts and avalanche deposits. The random error on snow depth can be reduced by a factor two (up to approximately 0.40 m) when the snow depth map is spatially averaged to a ~ 20 m grid. The random error at the pixel level is lower on snow-free areas than on snow-covered areas, but errors on both terrain type converge at coarser resolutions, which is important for further applications of the method in areas without snow depth reference data. We conclude that satellite photogrammetry stands out as an efficient method to estimate the spatial distribution of snow depth in high mountain catchments.
Real-time optimization of wind farms using modifier adaptation and machine learning
Authors: Andersson Leif Erik , Imsland Lars
Published: February 2020

Abstract. Real-time optimization (RTO) covers a family of optimization methods that incorporate process measurements in the optimization to drive the real process (plant) to optimal performance while guaranteeing constraint satisfaction. Modifier Adaptation (MA) introduces zeroth and first-order correction terms (bias and gradients) for the cost and constraint functions. Instead of updating the plant model, in MA the optimization problem is updated directly from data guaranteeing to meet the necessary condition of optimality upon convergence. The main burden of the MA approach is the estimation of the first-order modifiers of the cost and constraint functions at each RTO iteration. Finite-difference approximation is the most common approach that requires at least nu + 1 steady-state operation points to estimate the gradients, where nu is the number of control inputs. Obtaining these can require a long convergence time. For this reason, this work considers the use of Gaussian process (GP) regression to estimate the plant-model mismatch based on plant measurements, and replace the usual modifiers by these high order regression functions. GP is a probabilistic, non-parametric modelling technique well known in the machine learning community. The approach is tested on several numerical test cases simulating wind farms. It is shown that the approach is able to correct the model and converges to the plant optimal point. Several improvements for large inputs spaces, which is a challenging problem for the approach presented in the article, are discussed.
Gender and Universality in Colonial Methodology
Authors: Lugones María
Published: February 2020

This article offers a decolonial methodology that questions the universality tied to the concept of gender. While not questioning that the modern/colonial capitalist gender system is an oppressive, variable, systemic organization of power, it argues that it is not universal; that is, that not all peoples organize their relations in terms of and on the grounds of gender. Its aim is to offer a decolonial methodology to both study colonized people who live at the colonial difference, but also to engage in decolonial coalition. To see the colonial difference is to see coloniality/modernity as the place the colonized inhabit and the situation of oppression from which the colonized create meanings that are not assimilated.
Aspects of the Coloniality of Knowledge
Authors: Hoagland Sarah Lucia
Published: February 2020

Looking at work on advocacy research, this article raises concerns about researchers, exploring and illustrating four aspects of the Coloniality of Anglo-European knowledge practice possible in such research. It suggests that it is not because we are able to be scholars that we are positioned to develop knowledge of marginalized others; it is because of how we are positioned in relation to marginalized others that we are able to be scholars. This article ends with a suggestion for an epistemic shift.
Border Zones, in-Between Spaces, and Turns: On Lugones, the Coloniality of Gender, and the Diasporic Peregrina
Authors: Schutte Ofelia
Published: February 2020

This article considers María Lugones's work in Pilgrimages/Peregrinajes (2003), especially her association of the fragmented self with modernity, in order to understand the existential grounds of what she calls an impure, perceptually aware, mestizaje. It suggests that the impure Latina self validated thereby may be seen retrospectively as the forerunner of the decolonial feminist self who unveils the coloniality of gender analysis. Noting some discrepancies between them, the article questions whether Lugones's use of Quijano's world systems theory leads to an overdetermining historical approach that disables the spirit of inquiry for diversely situated Latinas, even as the theory itself invokes the heterogeneity of their experiences. The dilemma is illustrated by two types of peregrinas: a community-bound peregrina who easily undertakes the decolonial turn, and a diasporic peregrina who may or may not pass its guarded gate. The question remains: what difference does the divergence between these two peregrinas's paths make?
Fanon's Body: Judith Butler's Reading of the “Historico-Racial Schema”
Authors: Ewara Eyo
Published: February 2020

This article approaches Judith Butler as herself a theorist of race and racism by exploring her unacknowledged and often problematic reading of Frantz Fanon and his concept of the historico-racial schema. It first traces Butler's uses of Fanon's thinking across her work, outlining the different ways that she draws on Fanon in theorizing race and racism. The article then shows how that theorizing stems from Butler's reading of the historico-racial schema, focusing on her insertion of words that do not appear in either the translation she cites or in the original French text into a key quotation. This article argues that this systematic misreading of the historico-racial schema in Black Skin, White Masks problematically restricts Butler's understanding of the lasting effects and ethical consequences of racism and colonialism as they appear in her readings of that text and of The Wretched of the Earth.
“What Are You?”: Addressing Racial Ambiguity
Authors: Leboeuf Céline
Published: February 2020

“What are you?” This question, whether explicitly raised by another or implied in his gaze, is one with which many persons perceived to be racially ambiguous struggle. This article centers on encounters with this question. Its aim is twofold: first, to describe the phenomenology of a particular type of racializing encounter, one in which one of the parties is perceived to be racially ambiguous; second, to investigate how these often alienating encounters can be better negotiated. In the course of this investigation, this article examines the addressee's point of view and consider possible responses to the other's question. In addition, it discusses the addresser's perspective, both to probe the curiosity underlying the “What are you?” question and to explore alternatives to it. By describing the phenomenology of these encounters, this article hopes to show that racial ambiguity, as distinct from mixed-race, is a category of lived experience that calls for deeper philosophical scrutiny.
A INFLUÊNCIA DA PRECIPITAÇÃO E DA TEMPERATURA SOBRE AS OCORRÊNCIAS DE FEBRE CHIKUNGUNYA NO MUNICÍPIO DE BELÉM DO PARÁ, BRASIL
Authors: Da Silva Jaqueline Portal , Pimentel Márcia Aparecida da Silva , Jardim Mário Augusto Gonçalves
Published: February 2020

O objetivo desta pesquisa foi avaliar a influência das variáveis climáticastemperatura do ar e precipitação pluviométrica sobre as ocorrências defebre chikungunya (CHIKF). Conduziu-se o estudo no período de 2016 a2018, com área de aplicação no município de Belém (PA). Analisaram-se asvariáveis com base em estatísticas descritivas, das quais foram determinadosmédia, desvio padrão, coeficiente de variação, mediana, mínimo e máximo.As normalidades das variáveis foram definidas pelo uso de testes de correlaçãoparamétricos ou não paramétricos. Procedeu-se à análise de regressãolinear múltipla para as variáveis que apresentaram significância estatística.A sazonalidade foi confirmada com registros de CHIKF mais altos no primeirosemestre do ano, quando são registradas as maiores incidências de chuvas eas temperaturas mais amenas da região. A correlação de Pearson identificouassociação entre as ocorrências de CHIKF e as variáveis de temperatura eprecipitação em 2016, que apresentaram, respectivamente, associaçãopositiva e fraca e associação negativa e fraca. Em Belém, as característicasclimáticas locais favorecem a manutenção da CHIKF, entretanto, no estudodas arboviroses, devem ser considerados outros elementos também, comoos fatores socioambientais.
CONTRIBUIÇÃO HIDROSSEDIMENTOLÓGICA DAS ESTRADAS RURAIS EM BACIAS HIDROGRÁFICAS COM PEQUENAS E MÉDIAS PROPRIEDADES
Authors: Baucke Alex Sandro , Pinheiro Adilson , Kaufmann Vander
Published: February 2020

Os estudos hidrossedimentológicos abordam as contribuições da agricultura,do meio urbano e das demais ocupações da terra, entretanto as estradasrurais inseridas nas bacias hidrográficas dificilmente são observadas comocontribuição específica ou potencialmente contributiva. Desse modo, osobjetivos deste estudo foram simular diferentes cenários e características paraas estradas rurais e, assim, avaliar o fluxo de águas e sedimentos em bacias comagricultura familiar localizadas no sul do Brasil. Para isso, utilizou‑se o modelohidrológico soil and water assessment tool (SWAT). Na etapa de calibraçãoda vazão para a bacia do Ribeirão Concórdia, obtiveram‑se o coeficientede Nash-Sutcliffe (COE) de 0,76 e, para a validação, o coeficiente de 0,78.Na bacia do Rio Camboriú, a calibração alcançou COE de 0,67. Na calibraçãoe validação sedimentológica na bacia do Ribeirão Concórdia, obteve-se COEde 0,82 e de 0,68, respectivamente. Na bacia do Rio Camboriú, a calibraçãosedimentológica atingiu coeficiente de 0,59. Quando comparada com ocenário sem as estradas, a inserção de estradas rurais como uso específicoda terra (cenário calibrado) resultou em aumento de 6,3% na vazão e de8,8% nos sedimentos transportados na bacia do Ribeirão Concórdia. Na baciado Rio Camboriú, houve diferenças inferiores a 0,4%. Portanto, mesmoapresentando uma pequena área dentro da bacia, as estradas rurais podeminterferir na vazão e no volume de sedimentos transportados.
Discrete Jurassic and Cretaceous Mineralization Events at the Xiangdong W(-Sn) Deposit, Nanling Range, South China
Authors: Xiong Yi-Qu , Shao Yong-Jun , Cheng Yanbo , Jiang Shao-Yong
Published: February 2020

The Xiangdong W(-Sn) deposit is hosted in the Dengfuxian multiphase granites (biotite, two-mica, and muscovite granites) within the Nanling Range metallogenic belt in south China. Previous studies suggested that the W(-Sn) mineralization in the Xiangdong deposit is related to the Late Jurassic two-mica granite, whereas recently W-Sn–bearing quartz veins have also been identified in muscovite granite. We present new cassiterite and zircon U-Pb ages to constrain the timing of W-Sn mineralization and related granitic magmatism. Our laser ablation-inductively coupled plasma-mass spectrometry U-Pb dating of zircon grains, combined with previous zircon ages, in addition to the trace element composition of the muscovite granite, suggest the muscovite granite in the Dengfuxian pluton was emplaced at 145 to 142 Ma and shows highly evolved features. Cassiterite grains from the ore-bearing veins in two-mica granite yielded U-Pb ages of 151.6 ± 3.7 and 141 to 138 Ma, whereas cassiterite grains from quartz veins occurring in muscovite granite yielded a U-Pb age of 136.8 ± 3.3 Ma. The new ages and detailed geologic evidence indicate that the Early Cretaceous muscovite granite is also genetically related to W-Sn mineralization. Combining this with previously published data from the Late Jurassic two-mica granites and related mineralization, we suggest that there were two stages of W-Sn mineralization at Xiangdong. Arsenopyrite geothermometry from the two stages suggests temperatures of 300° to 491° and 308° to 450°C in stage I and stage II, respectively. Wolframite grains from the two stages also show different characteristics and patterns for their major and trace elements. The enrichment in Sc in wolframite suggests low-pH and low-Eh conditions for a fluid containing F– and/or PO43− complexes during stage I, whereas higher contents of Nb and Ta and lower contents of Sc in wolframite from stage II indicate relatively lower pH and higher Eh conditions. In combination with data from other recent studies, we propose that the 145 to 130 Ma interval represents a newly recognized W-Sn metallogenic period linked with highly evolved granites in the Nanling Range metallogenic belt. The Early Cretaceous muscovite granite is an important new target for W and Sn resources in south China.
Design and Validation of the College Readiness Test (CRT) for Filipino K to 12 Graduates
Authors: Tamayao Antonio , Vecaldo Rudolf , Asuncion Jay Emmanuel , Mamba Maria , Paat Febe Marl , Pagulayan Editha
Published: February 2020

Designing and validating a college readiness test addresses the absence of standardized Philippine-based College Readiness Test (CRT) congruent with the College Readiness Standards (CRS) set by the Philippine Commission on Higher Education (CHED). It also resolves the varied and arbitrary indices used by Higher Education Institutions (HEIs) to measure the preparedness of K to 12 Filipino graduates to enter college. In this regard, this study establishes the validity and reliability of the CRT to measure the combination of knowledge, skills, and reflective thinking necessary for the K to 12 graduates to be admitted and to succeed without remediation in the General Education courses in HEIs. Using multi-stage sampling in a select province of the Philippines and with due consideration of the district, type of school, and academic tracks offered in senior high school, the study has generated that the 200-item CRT has desirable difficulty index (65.64), reasonably good discrimination index (0.22), and large functioning distractors (68.91% distractor efficiency). Notably, there is a significant positive relationship between discrimination and difficulty indices as well as the distractor efficiency and difficulty index of the CRT items. Also, the CRT is reliable as it possesses inter-item consistency (r=0.796). Thus, it is a valid and reliable instrument to measure the college readiness of Filipino K to 12 graduates with its features of being contextualized, gender-fair, and criterion-referenced.
Information Searching in the Residential Solar PV Market
Authors: Pless Jacquelyn , Fell Harrison , Sigrin Ben
Published: February 2020

This paper examines the consumer information search behavior of households in San Diego County with solar photovoltaic (PV) systems. We focus on whether solar PV households financing the technology through third-party ownership (TPO) versus host-ownership (HO), which is equivalent to leasing or buying goods in other markets, have heterogeneous preferences as reflected by information search. Conditional on adoption, we find that TPO households tend to seek more information on home modifications required for solar installation whereas HO households seek more information on the financial returns of solar investments. These preferences may be correlated with the consumption of other goods and services, and thus, if used to inform marketing strategies, our results could help reduce solar PV customer acquisition costs and accelerate technology diffusion. They also have indirect implications for marketing goods and services in other contexts where consumers exhibit similar preferences.
Stretching the Duck: How Rising Temperatures will Change the Level and Shape of Future Electricity Consumption
Authors: Rivers Nicholas , Shaffer Blake
Published: February 2020

This paper examines how rising temperatures due to climate change will affect electricity consumption patterns through mid- and end-century. We extend recent literature in two important ways. First, we directly incorporate adaptation in the form of increased air conditioner penetration, resulting in heightened responsiveness to hot temperatures. Second, we go beyond average effects to consider how higher temperatures will change the intraday and seasonal shape of consumption.

This is found to be of greater importance in colder countries, where the average effect is dampened by reductions in heating demand from warmer winters. Seasonal peaks are projected to shift from winter to summer and the diurnal range of hourly consumption expands, exacerbating an increasing need for flexibility coming from the supply side due to a growing share of renewable energy.
Het toepasselijk recht op gebundelde kartelschadeclaims
Authors: van Bochove L.M.
Published: February 2020

Het toepasselijk recht op gebundelde kartelschadeclaims. Van mozaïek tot Rubik’s Cube

Een internationale kartelschadevordering wordt beheerst door het recht van het land waar de markt is beïnvloed. In de praktijk blijkt deze marktregel echter moeilijk toepasbaar, vooral wanneer vorderingen gebundeld worden ingediend. Dit artikel bespreekt de knelpunten van de marktregel en onderzoekt de praktische en juridische haalbaarheid van alternatieve aanknopingspunten.
Multidisciplinary diagnosis for children with autism – Functional assessment of development
Authors: Wójcik Magdalena
Published: February 2020

At the beginning of the article, the author presents basic information on the diagnostic procedure for autism spectrum disorder - main diagnostic criteria currently in force (DSM-5, ICD-10), taking into account the changes occurring in this area, as compared to the DSM-IV criteria, which were applicable until recently. In the second part, she emphasizes how important early diagnostic observation of autistic symptoms is. She analyzes in detail the patterns of normal child development from infancy to early childhood, taking into consideration characteristics that are important from the point of view of the diagnosis of autism: behaviors, emotions, relationships, physical development and communication; she also points to red flags for autism and distinctive early symptoms of autism spectrum disorder at each milestone in the development of infants and toddlers. The author also points out the importance of observing motor development in the child's first year of life in the ASD diagnostic procedure and emphasizes the need to analyze sensory processing difficulties and disorders, which is essential to develop appropriate therapeutic interventions; at the same time, she lists available assessment tools that are, in a way, an introduction to an extended diagnostic process. The third part of the article presents a detailed structure of diagnostic and therapeutic measures, which need to be developed individually for each child by a team of specialists. It also analyzes the special educator's assessment skills and points out threats coming from an inappropriate, unquestioning use of tools to provide functional assessment for children with autism; it also points to such tools that can complement the diagnostic process.
Wzory osobowe młodzieży nieprzystosowanej społecznie – przykład wychowanków młodzieżowych ośrodków wychowawczych
Authors: Konaszewski Karol
Published: February 2020

This report aims to examine which specific persons are considered to be aspirational role models by minors referred to youth educational centers and whether the role models vary among underage girls and underage boys. The research was quantitative in nature and participants were selected through purposeful random sampling. A total of 481 residents of youth educational centers were included in the study. The most important role models mentioned by the maladjusted youth in the study were placed in the following order: mother, grandmother, sister, brother, grandfather, father, friend, teacher, care/support worker, and priest. Data analysis performed with the use of the Mann-Whitney U test demonstrated that the preferred role models differ significantly (p <0.05) between boys and girls. Underage boys' role models more frequently included people from their inner family circle (mother, father, sister, brother, grandfather), their peer group (acquaintance, friend), as well as the school environment (priest). The comparison revealed no significant differences between boys and girls regarding the following role models: grandmother, teacher, and support/care worker. This means that these function as role models for both underage boys and girls to a similar extent.
BURNOUT AS A MEDIATOR OF THE INTERRELATIONS BETWEEN EMOTIONAL INTELLIGENCE AND STRESS COPING STRATEGIES IN NURSES
Authors: Markiewicz Katarzyna
Published: February 2020

The research focuses on the questions of if nurses working in various health care facilities present different abilities for emotional adaptation to the work environment, if they differ in feeling job related burnout, and what stress coping strategies they tend to employ.

The Questionnaire of Emotional Intelligence (INTE), Link Burnout Questionnaire (LBQ), and the Coping Inventory for Stressful Situations (CISS) were administered. The study comprised 104 nurses from various health care facilities located within 7 voivodships (Polish provincial administrative divisions). This included three groups of different types of work: general care, specialized medical care, and units providing care for patients at a high risk of dying. A statistical analysis was performed with IBM SPSS Statistic 24.

A regression analysis of the interface between emotional intelligence and stress-coping strategies showed that a high degree of emotional intelligence fostered a strategy of task-avoidance coping, and diminished the tendency to concentrate on emotions during stressful situations, it also minimized the propensity of the individual to reduce stress by distracting themselves with other activities. However, the mediation analysis revealed that the impact of emotional intelligence decreased after the role of occupational burnout was taken into consideration. This finding suggests that it is rather the occupational burnout that limits the possibility to apply effective stress coping strategies and that stress management does not reduce the risk of burnout.

The study indicated the significant role of emotional intelligence: as a higher level of this form of intelligence corresponded with a lower feeling of burnout in all its dimensions. The mediation analysis revealed that it is the occurrence of burnout that plays the most significant role in adjustment to the work environment. This finding suggests that the prevention of burnout is the most effective factor enabling productive work, and the maintenance of psychological wellbeing despite the many job stressors which may occur in the workplace. It creates the need to clarify its links with depression in order to concentrate on a really effective treatment.
INVESTIGATING THE INFLUENCE OF DISTANCE BETWEEN CARS ON THE DRIVER PSYCHOPHYSIOLOGY DURING BRAKING USING EEG: A CASE STUDY ON DRIVING IN INDONESIA
Authors: Sugiono Sugiono , Widhayanuriyawan Denny , Andriani Debrina P. , Prasetya Renaldi P.
Published: February 2020

The multiple crashes in Indonesia are categorized into a frequently occurring accident, which often causes death. The aim of this paper is to examine the driver psychophysiology during braking in response to the vehicle in the front, which is varied. The research was initiated with a literature review regarding the electrooculography (EEG), safe braking distance, Emotive Epoc+, and Central Nervous System (CNS).

The research was initiated with a literature review regarding the Electroencephalography (EEG), safe braking distance, Emotive Epoc+, and Central Nervous System (CNS). Research design with direct driving experiments on the road is used to analyze what happens to the driver's brain when braking at a certain distance (psychophysiology factor). The collected sampling data are from 4 male healthy drivers with the age between 20 - 40 years and average driving experience of more than 5 years. The measurement of brain activities into a spectrum of colors and Emotive BCI 16 electrodes through the performance matrices was conducted for the existing condition and condition suitable with the safety distance permitted. Experiments have been tested in 4 different road conditions of residential road (speed <30Km/h), city road (speed <50Km/h), rural road (speed <80Km/h) and motorway (speed <100Km/h). Safety distance measurement used standard data with residences road = 10m, city road = 29m, rural road 73m, and motorways = 115m. Results of brainwave signal have been recorded by Emotive Epoc Brain Activity map and Emotive BCI matrix and have been used to analyse the driver’s psychophysical.

The findings show that the level of stress in the existing condition is very wherein for the braking in the densely populated residence = 87, urban areas = 83, intercity = 76, and motorways = 60. In contrast, following the safety distance rules have successfully reduced mental stress to average 47 as proofed by lower beta signal especially on occipital lobe (vision function) and on frontal lobe (attention function). Improper infrastructure such as narrow road at heavy residential damaged driver relaxes and increased stress level as indicated by increasing brain signal significantly.

Meanwhile, driving while concerning the safety braking distance psychophysiologically through the identification of brain activity will be able to lower the driver’s stress and fatigue level.
EVALUATION OF ANXIETY AND DEPRESSION DISORDERS AND THE ASSOCIATED FACTORS AMONG HEMODIALYSIS SUBJECTS
Authors: Touil Driss , Aouane Mahjoub , Ahami Ahmed Omar Touhami
Published: February 2020

Identifying anxio-depressive disorders, evaluating their prevalence and determining the different factors that can intervene in their hap- pening to the patients suffering from hemodialysis.

Transversal descriptive and analytical study over 70 patients, real- ized at the dialysis unit of the Idrissi regional hospital’s department of medicine at Kenitra, Morocco, over a period of three months starting from 27 March to 26 June 2015. The data were acquired from a survey and psychiatric evaluation scales: The scale HADS (Hospital Anxiety and Depression Scale ) to evaluate anxiety and depression and the scale of « Big Five French Inventory to evaluate the treats of personality» (BF-Fr).

Average age was from 54,66±15,96 years. The seniority of the hemodialysis was on average 5,20±3,23 years. The studied traits of personality show a decrease regard to the average score of dimen- sion O (overture of sense) and of the dimension E score (extraversion) versus an evaluation of the dimension N score (Neu ro ticism). The prevalence of anxio-depressive troubles were as the following; 74,29% presented an anxious state (suspected or proven) and 70% had a depressive state (suspected or proven). The anxious troubles were correlated to age and to N and O characters of personality traits BFI-Fr. the depressive troubles were correlated to N charac- ters traits of personality BFI-Fr, and the anxious troubles were pos- itively correlated to depressive troubles.

The prevalence of anxio-depressive troubles among hemodialysis subjects was elevated with repercussions on the personality. The involvement of a psychologist in the processes of taking charge is obligatory.
Experiences of mothers of children with autism spectrum disorders in the face of the multitude of opinions concerning the knowledge and practices of autism
Authors: Drabata Agnieszka
Published: February 2020

Despite the progress that has been made in recent years in diagnosing autism spectrum disorders (ASD) and in approaches towards problems faced by people with autism and their families, we still lack a uniform theory concerning this issue. When we focus on financing studies aimed at finding potential causes of the disorder and risk factors for its occurrence, we reinforce the belief that autism is a modern problem which could be solved if only we discovered something that always seems so close. Authors and supporters of various treatment methods guarantee their effectiveness which is supposed to be measured by “recovery” from autism. The desire to find a “cure” for autism leads to a determined search for the best intervention in order “to heal” the child with ASD. Nowadays, parents can access different models to interpret their children's difficult behaviors, and they are the ones responsible for choosing from the multitude of solutions available. Choosing a doctor and a treatment method, seeking experts – these are the main activities for parents of children with ASD. How mothers experience the challenge of “navigating” in the pluralistic world of medical and non-medical practices in order to improve the functioning of their child is the subject of this article.
Personal features and self-assessment of stuttering adolescents as a factor of the success of their psychological – pedagogical support
Authors: Zaytseva Lyudmila A. , Sys Lyudmila A.
Published: February 2020

The article presents the results of a study on individual psychological traits of the personality of stuttering adolescents in problematic speech situations, the participants' characteristics are given, and self-assessment of stutterers is considered as a factor contributing to the improvement of correctional and pedagogical interventions and successful social adaptation of adolescents.
An Assesment of Usefulness of Smartphone as a Magnifying Device for Microsurgery Training
Authors: Leśniewski Kamil , Czernikiewicz Konrad , Żyluk Andrzej
Published: February 2020

Background. Currently available smartphones are equipped with optic systems allowing even 10x magnifi­ca­tion, which makes it possible to use them as magnifying devices for microsurgery training. The objective of this study was to assess the usefulness of smartphones for basic microsurgery training.
Material and methods. Two students began experimental microsurgical training using a smartphone as a magni­fy­ing device. Both students had acquired microsurgical skills following training under the microscope. For the expe­riment, the time of completion of a “6 stitches” test was measured and compared for each student using a smartphone and a microscope, after 1 and 6 hours of training using only a smartphone.
Results. After one hour of training, the first student completed the “6 stitches” test within 7:52 min. under the mi­croscope and within 16:35 min. using a smartphone, while the respective scores of the second student were 12:31 and 20:12 min.. In both cases the time required to complete the test was longer when working with a smartphone. The test was repeated after 6 hours of practice with a telephone, and the results now were as follows: first student 7:10 min. with the microscope and 12:50 min. with a smartphone, second student 8:54 min. with the microscope and 12:01 min. with a smartphone.
Conclusions. 1. The microsurgical skills of both trainees improved gradually when they were using a smartphone (by 3:8 min. and 8:1 min) and the microscope (by 0:4 min. and 3:8 min). 2. Two drawbacks of the smartphone were noticed: lack of three-dimensional vision, deteriorating vertical orientation in the operating field and worse vision quality compared to the microscope. 3. Advantages of this tool include the availability of training at home, low cost and possibility of analysis of images recorded in the smartphone memory.
Monitoring of the employee’s Internet use in the workplace in the light of selected case law of the European Court of Human Rights and Polish case law
Authors: Mania Karolina
Published: February 2020

This article analyses selected case law of the European Court of Human Rights (ECHR) as well as Polish case law in the subject matter specified in the title, i.e. the monitoring of Internet use by employees in the workplace. The author has selected the research subject based on the own observations on the existence of nuances and divergences in the ECHR’s case law in this field, as well as a growing importance of this matter in the context of increasing employees’ online activity at work. The study is based on such research methods as content analysis, comparative legal methodology and the formal-dogmatic approach.
Investigation of structural-geometric
parameters and elemental composition
of spherical VT20 alloy powders
Authors: Duriagina Z.A. , Filimonov O.S. , Kulyk V.V. , Lemishka I.A. , Kuziola R.
Published: February 2020

Purpose: Identification of structural-geometrical parameters, technological properties and
elemental composition of spherical powders in a wide fraction range with respect to the
VT20 alloy has been carried out. This is important for evaluating the optimum filling of a given
volume by mixture of powders of different fractions during 3D printing.
Design/methodology/approach: During the investigation of spherical Ti-alloy powders,
a comprehensive approach was performed using Scanning Electron Microscopy (SEM),
Energy-Dispersive X-ray Spectroscopy (EDS), Dynamic Light Scattering (DLS) and Inductively
Coupled Plasma Mass Spectrometry (ICP-MS). The surface morphology of the powders was
studied on a Tuescan Vega 3 Scanning Electron Microscope. Using the Quantax energy
dispersive spectrometer, element distribution maps were obtained and histograms of
element distribution in the investigated powders were constructed. ICP-MS analysis was
performed to clarify the elemental composition. DLS analysis using Malvern's Zetasizer
Nano-ZS equipment allowed us to determine the functional parameters (hydrodynamic
radius – Rh, zeta potential – z and specific conductivity) of particles of titanium alloy powder
that indirectly indicate a tendency to form conglomerates.
Findings: According to the microscopic examinations, the VT20 alloy powder consists
of globular-shaped particles with the lamellar traces on their surfaces. The uniformity of
the chemical element distribution within each fraction of the investigated powders was
confirmed by EDS, and the full conformity of the powder fractions with the elemental
composition of the VT20 alloy was confirmed by ICP-MS. The DLS method allowed to
establish that the formation of conglomerates would not occur within the studied fractions
of the VT20 alloy powder.
Research limitations/implications: The use of high sensitive investigation methods
gives understanding of the mechanisms of fine structure formation and possibility to control
the processes of powder coagulation in the stage of electrostatic interactions.
Practical implications: The obtained results can be used for the formation of fine
spherical particles of the powder, but at the same time, these technologies can be extended
for the particles of non-spherical shape.
Originality/value: The DLS method allowed to establish that the formation of conglomerates
would not occur within the studied fractions of the VT20 alloy powder. This, in turn, will
improve powder melting during 3D printing. The measured zeta potential values allowed us
to reveal mechanisms of fine structure formation and to control the processes of powder
coagulation in the stage of electrostatic interactions.
Empowerment of Hmong women in Vietnam
Authors: Szolc Katarzyna
Published: February 2020

Social forces dormant in people can be used in the method of empowerment. This method allows to release social forces and change the functioning of a person and social groups. This article, based on a case study, will present the strength of women from the Hmong ethnic group living in northern Vietnam. The author describes how social forces dormant in one woman can rouse to action other women from the local community and become a drive wheel to financial liberation, thereby improving the quality of ethnic minority life.
X-ray diffraction studies of rapid cooled
Al-V and Al-Fe-V alloys
Authors: Shved O. , Mudry S. , Girzhon V. , Smolyakov O.
Published: February 2020

Purpose: of this paper is to deep and more complete knowledge about the features of
phase and structure formation in Al-based alloys with transition metals (TM) Fe and V at rapid
cooling from melt. It is known, that nonequilibrium synthesis conditions of such alloys lead to
quasicrystalline, amorphous or metastable phases formation, which can significantly improve
the physical-chemical properties and first of all the mechanical ones. But understanding of
compositional dependences of structure features at formation under nonequilibrium conditions
and the correlation of these dependences with physical properties of alloys is far to be clear.
Design/methodology/approach: Structure of Al-enriched Al-V, Al-V-Fe rapid cooled alloys
was studied by X-ray diffraction method. In order to estimate the influence of structural state of
alloy on the mechanical properties the integral microhardness was studied by Vickers method.
Findings: Two quasicrystalline icosaedral phases with different cell parameters are revealed
in ternary alloys Al100-3xV2xFex (x=2-4). Increasing of transition metal content promotes the
formation of phase with higher quasicell parameter embedded in amorphous matrix. With
increasing of the transition elements total content from 6 up to 12 at. % the microhardness
of alloys increased gradually from 867 to 3050 MPa.
Research limitations/implications: Research of nonequilibrium alloys revealed
crystalline structure of Al-V alloys and quasicrystalline embedded in amorphous matrix
of Al-Fe-V ternary alloys. Obtained results suppose that further structure and physical
properties studies of Al-Fe-V alloys will allows to find the conditions to control the producing
of materials with desired properties.
Practical implications: Using of rapid cooling method for synthesis of Al-enriched Al-Fe-V
alloys give an opportunity to produce alloys with significantly improved mechanical properties.
Originality/value: Nonequilibrium conditions of cooling allow significantly changes the
structure and properties.
Photosynthesis ecophysiology of polar Vaucheria sp. – inter-annual comparison
Authors: Kvíderová Jana , Elster Josef
Published: February 2020

The Vaucheria sp. microbial mats represent the most important primary producer in the tidal flat in Adventdalen, Svalbard. Its photosynthetic activity was monitored ex situ in a microcosm in late Arctic summer in 2016 and 2017 using variable chlorophyll fluorescence measurements with blue and red excitation lights. The effective quantum yield (FPSII) was measured, and the photosynthetic relative electron transport rate (rETR) was calculated. During the measurement period, the microclimate data, air temperature and photosynthetically active radiation (PAR), were recorded as well. Year 2016 was slightly warmer than year 2017. Despite of higher maximum PAR values found in 2016, the mean irradiance reached higher values in 2017 than 2016. When using red light excitation, the rETR and effective quantum yield values were lower than those measured using blue excitation light in 2016. However, opposite results were recorded in 2017, indicating thus rather sample-specific differences. According to redundancy analysis, the PAR was confirmed as the main driver of photosynthesis in late Arctic summer in both years. No serious photoinhibition, expressed as serious systematic decline of the rETR, was observed in both years indicating rapid photoacclimation of Vaucheria sp. photosynthesis to changing light environment. The air temperature was found to be less important driver of the photosynthetic activity. The inter-annual comparisons showed increased photosynthetic activity in 2017, probably caused by higher PAR in 2017, by differences in microcosmos design and/or heterogeneity of samples.
Screening of growth phases of Antarctic algae and cyanobacteria cultivated on agar plates by chlorophyll fluorescence imaging
Authors: Dufková Kristýna , Barták Miloš , Morkusová Jana , Elster Josef , Hájek Josef
Published: February 2020

Recently, chlorophyll fluorescence imaging is frequently used non-invasive method to monitor the metabolic state and photosynthetic activities of vascular plants and other autotrophic organisms. In our study, we used the measurements of chlorophyll fluorescence kinetics to follow the development of culture of Antarctic algae (Macrochloris rubrioleum, Zygnema sp.) and cyanobacteria (Hassalia antarctica, Nostoc commune). On the cultures grown on agar plates, Bold´s Basal Medium (BBM), slow Kautsky kinetics supplemented with saturation pulses were measured repeatedly in a week interval. On the kinetics, typical points (OPSMT) were distinguished and species-specific and time of cultivation-dependent differences in shape of the OPSMT kinetics evaluated. We tested sensitivity of various chlorophyll fluorescence parameters to cultivation time on agar plates. In the algae, the most pronounced changes were the decrease in maximum quantum yield of photosystem II (FV/FM) and quenching of basal chlorophyll fluorescence qF0 (M. rubrioleum, Zygnema sp.). In cyanobacteria, chlorophyll fluorescence parameters did not show clear trends with the time of cultivation. F0 quenching (qF0) reached positive values in H. antarctica, while it was negative in N. commune. In both cases, however, qF0 showed an increase with cultivation time. The differences are discussed as well as the potential of the emerging area of the application of chlorophyll fluorescence imaging for evaluation of photosynthetic performance of algal/cyanobacterial cultures on agar plates.
Reactions of shorebirds and passerines to human development in the Russian Arctic under the influence of strict conservation measures
Authors: Kouzov Sergey , Kravchuk Anna , Zaynagutdinova Elmira , Abakumov Evgeny
Published: February 2020

Anthropogenic impact on nesting waders and passerine birds in the Arctic in surroundings of the industrial complex Sabetta, Yamal Peninsula, Russia was studied. A lot of factors associated with human development may affect nesting birds. The human-subsidized predation is considered to be the most significant. Anthropogenic food sources are usually present in human-transformed habitats, as well as additional dens and perch sites. This leads to a higher press of predation. In Sabetta, there are specific conditions causing artificially-limited predation and human-induced disturbance. Finding a large number of nests in close proximity to industrial infrastructure we have suggested that waders (order Charadriiformes) and passerine (order Passeriformes) birds may be tolerant to an urbanized landscape. In the studied industrial habitat, they probably do not reduce the nesting density, thanks to particular advantages of such habitats (drainability and variety of shelters). To test this hypothesis, we performed an analysis of the relationship between the nesting density of the 8 most abundant species of waders and passerines in relation to the degree of habitat transformation. Statistical analysis was carried out using the GLM module of Statsoft Statistica 10. We found a positive relation between nesting density of the Ringed Plover (Charadrius hiaticula) and Snow bunting (Plectrophenax nivalis) and the degree of transformation. Habitat transformation did not significantly affect the White wagtail (Motacilla alba) and Red-throated pipit (Anthus cervinus). The Lapland longspur (Calcarius lapponicus) showed a clear decrease of the nest density in transformed habitats. Last but not least, the Little stint (Calidris minuta), Temminck’s stint (C. temminckii) and Red-necked phalarope (Phalaropus lobatus) completely ignored only artificial habitats, whereas in partially transformed habitats, their mean nesting density was similar to undisturbed natural areas.
Drawing Clustered Planar Graphs on Disk Arrangements
Authors: Mchedlidze Tamara , Radermacher Marcel , Rutter Ignaz , Zimbel Nina
Published: February 2020

Let $G=(V, E)$ be a planar graph and let $\mathcal V$ be a partition of $V$.
We refer to the graphs induced by the vertex sets in $\mathcal V$ as
clusters.
Let $\mathcal C_{\mathcal C}$ be an arrangement of pairwise disjoint disks with a bijection
between the disks and the clusters. Akitaya et
al.[Akytaia et al. SODA 2018] give an algorithm to test whether
$(G, \mathcal V)$ can be embedded onto $\mathcal C_{\mathcal C}$ with the additional
constraint that edges are routed through a set of pipes between the disks. If
such an embedding exists, we prove that every clustered graph and every disk
arrangement without pipe-disk intersections has a planar straight-line drawing
where every vertex is embedded in the disk corresponding to its cluster. This
result can be seen as an extension of the result by Alam et
al.[Alam et al. JGAA 2015] who solely consider biconnected clusters. Moreover, we
prove that it is $\mathcal{NP}$-hard to decide whether a clustered graph has such a
straight-line drawing, if we permit pipe-disk intersections, even if all disks
have unit size. This answers an open question of Angelini et
al.[Angelini et al. GD 2014].