bluuebunny/crossref_metadata_2025 huggingface dataset:
Fleischersatz zunehmend gefragt
Authors: Bach Steffen
Published: April 2022

Frankfurt a.M. Pflanzliche Alternativen zu Fleisch und Milchprodukten erobern den Massenmarkt. Die Agrarbranche kann bei dem Boom nur mithalten, wenn sie die Wertschöpfungskette optimiert.
Rotor Fault Detection in Squirrel Cage Induction Motors using MCSA and DWT Techniques
Authors: BESSOUS Noureddine , SBAA Salim , PUSCA Remus , ROMARY Raphaël
Published: April 2022

This article presents the fault detection of broken rotor bar (BRB) faults in squirrel cage induction motors (SCIMs). This work applied two diagnostic methods on stator current signal. It is necessary to verify the machine health to avoid any catastrophic damage. The first method uses the fast Fourier transform (FFT) which is generally called motor current signature analysis (MCSA). We carefully verified the spectral content of the stator current to detect BRB fault. The new harmonics allows us to take a good decision about BRB fault. The second method is based on the discrete wavelet transform (DWT). This technique is widely used in the diagnosis field of rotating machinery. According to DWT method, we used the mean square error (MSE) as a good indicator. An experimental test with different conditions of the induction motor has been performed. The experimental results have been exploited using MCSA and DWT methods to achieve a good decision.
Covid-19 Images and Video Denoising Algorithms Based on Convolutional Neural Network CNNs
Authors: Messali Zoubeida , SAAD SAOUD Salsabil , LAMRECHE Amira
Published: April 2022

In this paper, the most sophisticated denoising algorithms of images and video are applied and implemented. More precisely, we study and implement the video denoising algorithms "VBM3D", "VBM4D", "DVDNet" and "FastDVDnet". Much attention is given to the latest DVDNet and FastDVDNet algorithms, which are based on CNN. We carry out a detailed quantitative and qualitative comparative study between the considered algorithms. Two assessments are adapted; the first is a qualitative comparison based on the qualityof the images / videos and the second is quantitative in terms of PSNR and running time criteria. To see the direct impact of our study on the current pandemic, and to show the importance of image and video preprocessing algorithms in the field of medical imaging; we apply the considered denoising algorithms based on CNN on our built COVID- 19 dataset and TEST_PCR videos.
The Characterization of Black-streaked Heartwood in Teak: Inter-tree Variation
Authors: Lukmandaru Ganis , Ashitani Tatsuya , Takahashi Koetsu
Published: April 2022

The objective of  this  study was to  investigate the  variation in the  color and chemical characteristics of  black-streaked heartwood of teak and explore the relationship of these chemical properties with the  degree of blackening. The samples used were outer heartwood parts from  11  trees with  black streaks both  thin  and thick and 7  trees with  normal heartwoods for comparison.  The colorimetric  analysis in  CIEL*a*b*  system was used to  determine  the  brightness  values (L*)  of  black- streaked heartwood of teak ranging from  40~49 and a thick portion produced appreciably higher average values of extractive contents including  n-hexane,  ethyl acetate, and total  extractive  content as well as tectoquinone contents and pH values but lower squalene content compared to those in normal wood. The degree of blackening in the  black-streaked  heartwood was highly correlated to its extractive contents, especially the  ethyl acetate soluble extractive content (r = −0.94) while moderate correlations  were measured  between  the  brightness  index  and  tectoquinone content (negative)  and squalene (positive). Moreover, no  significant difference was found in the  ash and individual inorganic elements contents between the  group. The increase  in  pH   values  was observed  to  have  corresponded with  a decrease  in  brightness  (r  = -0.75).  Therefore,  the blackening was assumed to be  due to the  polymerization of quinones in weakly acidic conditions
The Effectiveness of Boron Preservatives to Prevent Dry-wood Termite Attack on Mahogany Sapwood
Authors: Larasati Aryati , Sulistyo Joko
Published: April 2022

Mahogany wood  is utilized for many furniture products and construction purposes. The objective of this experiment was to  prevent  wood-destroying  insects  by   using  boron  preservatives  such as boric  acid  and borax.   Materials  used were mahogany  sapwood  planks  (19   years)  obtained  from   community  forest  in  Kali  Bawang  District,  Kulon  Progo.  Two preservation  methods,  i.e.,  hot-soaking  (1,   2,   and  3  hours) and  the   cold-soaking  (12,   24,   36,   and  48  hours)  in  5% concentration,  were used. The drywood termites  (Cryptotermes  cynocephalus Light)  were used for  observation.  The result showed that  the  retention  value ranges were 4.25  to 12.99  kg/m3  for cold-soaking  method and 3.09  to 9.53  kg/m3  for heat- soaking method. Mortaliy rate and mass loss  due to termite attacks ranged from  56.0  to 80.6  % (control values : 43.3%) and 850  to  1370  mg  (control values : 1930  mg). Significant interaction between soaking time and the  type of  preservative was observed to  discover its  effect on  the  levels of  retention (cold soaking) and mortality rate of  termites (hot  soaking). Boron preservatives tended to enhance the  repellent properties than  its toxicity.
ASPECTS REGARDING THE LEGALITY OF THE DISMISSAL DECISION
Authors:   Petroleum - Gas University of Ploiesti, Romania, Rădulescu Dragoş Lucian
Published: April 2022

Dismissal is the legal institution that, on the initiative of the employer or for reasons related to the employee, causes the termination of the individual employment contract. In case of application of the provisions of art. 65 of the Labor Code, regarding the termination of employment for reasons not related to the person of the employee, the topic is of the utmost relevance, in the current economic context. The legality of such a dismissal decision will relate to the existence of a real and serious cause, thus eliminating the possible subjective conduct of employers, not accepting the absence of the actual cause or the elements that define discrimination in employment relationships. The article discusses the conditions of legality of a dismissal decision leading to the termination of employment, as well as the accepted motivation, with reference to opinions in legal doctrine and practice.
"ALTERNATIVE DISPUTE RESOLUTION AND INDIVIDUAL LABOUR CONFLICTS: A DIFFERENT WAY OF MANAGING ORGANIZATIONAL DISPUTES"
Authors:   Petroleum - Gas University of Ploiesti, Romania, Volosevici Dana
Published: April 2022

Organizational conflict as is considered legitimate and inevitable and may constitute a positive indicator of effective organizational management. This paper aims to analyse the legal provisions which establish the alternative dispute resolution methods and procedures regarding the individual labour conflicts through conciliation and mediation.
Jet stream variability in a polar warming scenario – a laboratory perspective
Authors: Rodda Costanza , Harlander Uwe , Vincze Miklos
Published: April 2022

Abstract. We report on a set of laboratory experiments to investigate the effect of polar warming on the mid-latitude jet stream. Our results show that a progressive decrease of the meridional temperature difference slows down the eastward propagation of the jet stream and complexifies its structure. Temperature variability decreases in relation to the laboratory ‘Arctic warming’ only at locations representing the Earth’s polar and mid-latitudes, which are influenced by the jet stream, whilst such trend reverses in the equatorial region south of the simulated subtropical jet. The reduced variability results in narrower temperature distributions and hence milder extreme events. However, our experiments also show that the frequency of such events increases at polar and mid-latitudes with decreased meridional temperature difference, whilst it decreases towards the equators. Despite missing land-sea contrast in the laboratory model, we find qualitatively similar trends of temperature variability and extreme events in the experimental data and the National Centers for Environmental Prediction (NCEP) reanalysis data.
A global map of Local Climate Zones to support earth system modelling and urban scale environmental science
Authors: Demuzere Matthias , Kittner Jonas , Martilli Alberto , Mills Gerald , Moede Christian , Stewart Iain D. , van Vliet Jasper , Bechtel Benjamin
Published: April 2022

Abstract. There is a scientific consensus on the need for spatially detailed information on urban landscapes at a global scale. This data can support a range of environmental services, as cities are acknowledged as places of intense resource consumption and waste generation and foci of population and infrastructure that are exposed to multiple hazards of natural and anthropogenic origin. In the face of climate change, urban data is also required to explore future urbanisation pathways and urban design strategies, in order to lock in long-term resilience and sustainability, protecting cities from future decisions that could undermine their adaptability. To serve this purpose, we present a 100 m resolution global map of Local Climate Zones (LCZs), an universal urban typology that can distinguish urban areas on a holistic basis, accounting for the typical combination of micro-scale land-covers and associated physical properties. The global LCZ map, composed of 10 built and 7 natural land cover types, is generated by feeding an unprecedented amount of labelled training areas and earth observation imagery into lightweight random forest models. Its quality is assessed using a bootstrap cross validation alongside a thematic benchmark for 150 selected functional urban areas using independent global and open-source data on surface cover, surface imperviousness, building height, and anthropogenic heat. As each LCZ type is associated with generic numerical descriptions of key urban canopy parameters that regulate atmospheric responses to urbanisation, the availability of this globally consistent and climate-relevant urban description is an important prerequisite for supporting model development and creating evidence-based climate-sensitive urban planning policies. This dataset can be downloaded from http://doi.org/10.5281/zenodo.6364594 (Demuzere et al., 2022a).
A remote field course implementing high-resolution topography acquisition with geomorphic applications
Authors: Bywater-Reyes Sharon , Pratt-Sitaula Beth
Published: April 2022

Abstract. Here we describe the curriculum and outcomes from a data-intensive
geomorphic analysis course, “Geoscience Field Issues Using High-Resolution
Topography to Understand Earth Surface Processes”, which pivoted to virtual
in 2020 due to the COVID-19 pandemic. The curriculum covers technologies for
manual and remotely sensed topographic data methods, including (1) Global
Positioning Systems and Global Navigation Satellite System (GPS/GNSS)
surveys, (2) Structure from Motion (SfM) photogrammetry, and (3) ground-based
(terrestrial laser scanning, TLS) and airborne lidar. Course content focuses
on Earth-surface process applications but could be adapted for other
geoscience disciplines. Many other field courses were canceled in summer
2020, so this course served a broad range of undergraduate and graduate
students in need of a field course as part of degree or research
requirements. Resulting curricular materials are available freely within the
National Association of Geoscience Teachers' (NAGT's) “Teaching with Online Field Experiences” collection. The
authors pre-collected GNSS data, uncrewed-aerial-system-derived (UAS-derived) photographs, and ground-based lidar, which students then used in course
assignments. The course was run over a 2-week period and had synchronous
and asynchronous components. Students created SfM models that incorporated
post-processed GNSS ground control points and created derivative SfM and TLS
products, including classified point clouds and digital elevation models
(DEMs). Students were successfully able to (1) evaluate the appropriateness
of a given survey/data approach given site conditions, (2) assess pros and
cons of different data collection and post-processing methods in light of
field and time constraints and limitations of each, (3) conduct error and
geomorphic change analysis, and (4) propose or implement a protocol to answer
a geomorphic question. Overall, our analysis indicates the course had a
successful implementation that met student needs as well as course-specific
and NAGT learning outcomes, with 91 % of students receiving an A, B, or C
grade. Unexpected outcomes of the course included student self-reflection
and redirection and classmate support through a daily reflection and
discussion post. Challenges included long hours in front of a computer,
computing limitations, and burnout because of the condensed nature of the
course. Recommended implementation improvements include spreading the course
out over a longer period of time or adopting only part of the course and
providing appropriate computers and technical assistance. This paper
and published curricular materials should serve as an implementation and
assessment guide for the geoscience community to use in virtual or in-person
high-resolution topographic data courses that can be adapted for individual
labs or for an entire field or data course.
Sensitivity of precipitation in the highlands and lowlands of Peru to physics parameterization options in WRFV3.8.1
Authors: González-Rojí Santos J. , Messmer Martina , Raible Christoph C. , Stocker Thomas F.
Published: April 2022

Abstract. The performance of the Weather Research and Forecasting (WRF) model version 3.8.1 at convection-permitting scale is evaluated by means of several sensitivity simulations over southern Peru down to a grid resolution of 1 km, whereby the main focus is on the domain with 5 km horizontal resolution. Different configurations of microphysics, cumulus, longwave radiation, and planetary boundary layer schemes are tested. For the year 2008, the simulated precipitation amounts and patterns are compared to gridded observational data sets and weather station data gathered from Peru, Bolivia, and Brazil. The temporal correlation of simulated monthly accumulated precipitation against in situ and gridded observational data show that the most challenging regions for WRF are the slopes along both sides of the Andes, i.e. elevations between 1000 and 3000 m above sea level. The pattern correlation analysis between simulated precipitation and station data suggests that all tested WRF setups perform rather poorly along the northeastern slopes of the Andes during the entire year. In the southwestern region of the domain the performance of all setups is better except for the driest period (May–September). The results of the pattern correlation to the gridded observational data sets show that all setups perform reasonably well except along both slopes during the dry season. The precipitation patterns reveal that the typical setup used over Europe is too dry throughout the entire year, and that the experiment with the combination of the single-moment 6-class microphysics scheme and the Grell–Freitas cumulus parameterization in the domains with resolutions larger than 5 km, suitable for East Africa, does not perfectly apply to other equatorial regions such as the Amazon basin in southeastern Peru. The experiment with the Stony Brook University microphysics scheme and the Grell-Freitas cumulus parameterization tends to overestimate precipitation over the northeastern slopes of the Andes, but enforces a positive feedback between the soil moisture, air temperature, relative humidity, mid-level cloud cover and, finally, precipitation. Hence, this setup provides the most accurate results over the Peruvian Amazon, and particularly over the department of Madre de Dios, which is a region of interest because it is considered a biodiversity hotspot of Peru. The robustness of this particular configuration of the model is backed up by similar results obtained during wet climate conditions observed in 2012.
Adjustment concept for compensating for stiffness and tilt sensitivity of a novel monolithic electromagnetic force compensation (EMFC) weighing cell
Authors: Pabst Markus , Darnieder Maximilian , Theska René , Fröhlich Thomas
Published: April 2022

Abstract. This paper describes the new adjustment concept of novel planar, monolithic, high-precision electromagnetic force compensation weighing cells. The concept allows the stiffness and the tilt sensitivity of the compliant mechanisms that are dependent on the nominal load on the weighing pan to be adjusted to an optimum. The new mechanism is set up and adjusted according to the developed mechanical model. For evaluation of the concept the system is tested on a high-precision tilt table and under high vacuum conditions in the environment of a commercially available mass comparator.
Multiscale flood risk assessment under climate change: the case of the Miño River in the city of Ourense, Spain
Authors: Fernández-Nóvoa Diego , García-Feal Orlando , González-Cao José , deCastro Maite , Gómez-Gesteira Moncho
Published: April 2022

Abstract. River floods, which are one of the most dangerous natural hazards worldwide, have increased in intensity and frequency in recent decades as a result of climate change, and the future scenario is expected to be even worse. Therefore, their knowledge, predictability, and mitigation represent a key challenge for the scientific community in the coming decades, especially in those local areas that are most vulnerable to these extreme events. In this sense, a multiscale analysis is essential to obtain detailed maps of the future evolution of floods. In the multiscale analysis, the historical and future precipitation data from the CORDEX project are used as input in a hydrological model (HEC-HMS) which, in turn, feeds a 2D hydraulic model (Iber+). This integration allows knowing the projected future changes in the flow pattern of the river, as well as analyzing the impact of floods in vulnerable areas through the flood hazard maps obtained with hydraulic simulations. The multiscale analysis is applied to the case of the Miño-Sil basin (NW Spain), specifically to the city of Ourense. The results show a delay in the flood season and an increase in the frequency and intensity of extreme river flows in the Miño-Sil basin, which will cause more situations of flooding in many areas frequented by pedestrians and in important infrastructures of the city of Ourense. In addition, an increase in water depths associated with future floods was also detected, confirming the trend for future floods to be not only more frequent but also more intense. Detailed maps of the future evolution of floods also provide key information to decision-makers to take effective measures in advance in those areas most vulnerable to flooding in the coming decades. Although the methodology presented is applied to a particular area, its strength lies in the fact that its implementation in other basins and cities is simple, also taking into account that all the models used are freely accessible.
Estimate of energy loss from internal solitary waves breaking on slopes
Authors: Terletska Kateryna , Maderich Vladimir
Published: April 2022

Abstract. Internal solitary waves (ISWs) emerge in the ocean and seas in various forms and break on the shelf zones in a variety of ways. This results in intensive mixing that affects processes such as biological productivity and sediment transport. As ISWs of depression propagate in a two-layer ocean, from the deep part onto a shelf, two mechanisms are significant: (1) the breaking of internal waves over bottom topography when fluid velocities exceed the wave phase speed that causes overturning of the rear face of the wave, and (2) the changing of polarity at the turning point where the depths of the upper and lower layers are equal.
We assume that the parameters that describe the process of the interaction of ISWs in a two-layer fluid with an idealized shelf-slope topography are (1) the nondimensional wave amplitude, normalized on the upper-layer thickness; (2) the ratio of the height of the bottom layer on the shelf to the incident wave amplitude; and (3) the angle of the bottom inclination. Based on a proposed three-dimensional classification diagram, four types of wave propagation over the slopes are distinguished: the ISW propagates over the slope without changing polarity and wave breaking, the ISW changes polarity over the slope without wave breaking, the ISW breaks over the slope without changing polarity, and the ISW both breaks and changes polarity over the slope. The energy loss during ISW transformation over slopes with various angles was estimated using the results of 85 numerical experiments. “Hot spots” of high levels of energy loss were highlighted for an idealized bottom configuration that mimics the continental shelf in the Lufeng region in the South China Sea.
Reusing Fe water treatment residual as a soil amendment to improve physical function and flood resilience
Authors: Kerr Heather C. , Johnson Karen L. , Toll David G.
Published: April 2022

Abstract. Soil degradation is a global challenge that is
intrinsically linked to climate change and food security. Soil degradation
has many causes, but all degraded soils suffer from poor soil structure. The
increasing global production of water treatment residual (WTR), an
organo-mineral waste product from clean water treatment, means that the
sustainable reuse of this waste provides a potential timely opportunity, as
research has shown that WTR application to soil can improve soil health.
Recycling or reuse of WTR to land is commonplace across the world but is
subject to limitations based on the chemical properties of the material.
Very little work has focused on the physical impacts of WTR application and
its potential to rebuild soil structure, particularly improving its ability
to hold water and resist the effects of flooding. This paper presents novel
research in which the use of Fe WTR and Fe WTR / compost [1 : 1] co-amendment
has shown to be beneficial for a soil's water retention, permeability,
volume change, and strength properties, all critical in soil health.
Application rates of WTR were 10 %–30 % by dry mass. Compared with the
control sandy loam soil, co-amended samples have 5.7 times the hydraulic
conductivity (570 % improvement), 54 % higher shear strength, and 25 %
greater saturated water content. Single WTR-amended soil had 26 times the
saturated hydraulic conductivity (2600 % improvement), 129 % higher
shear strength, and 13.7 % greater saturated water content. Data indicate
that Fe WTR can be added as a single amendment to significantly improve soil
physical characteristics where shear strength and hydraulic conductivity are
the most important factors in application. Although the co-application of
Fe WTR with compost provides a lesser improvement in shear strength and
hydraulic conductivity compared with single WTR amendment, the co-amendment
has the best water retention properties and provides supplementary organic
content, which is beneficial for environmental applications where the soil
health (i.e. ability to sustain ecosystem functions and support plants) is
critical.
Dynamics of Gap Winds in the Great Rift Valley, Ethiopia: Emphasis on Strong Winds at Lake Abaya
Authors: Weiß Cornelius Immanuel , Gohm Alexander , Rotach Mathias Walter , Minda Thomas Torora
Published: April 2022

Abstract. Lake Abaya, located in the Great Rift Valley (GRV) in Ethiopia, is affected by regularly occurring strong winds that cause water waves, which in turn affect the lake's ecology and food web. The driving forces for these winds, however, are yet unexplained. Hence, the main goal of this study was to provide a physical explanation for the formation of these strong winds in the GRV and especially at Lake Abaya. Therefore, two case studies were performed based on measurements, ERA5 reanalysis data and mesoscale numerical simulations conducted with the Weather Research and Forecasting (WRF) model. The simulations revealed that in both cases a gap flow downstream of the narrowest and highest part of the GRV (i.e. the pass) led to high wind speeds of up to 25 m s-1. Two types of gap flow were identified: a northeast gap flow and a southwest gap flow. The wind directions are in line with the orientation of the valley axis and depend on the air mass distribution north and south of the valley and the resulting along-valley pressure gradient. The air mass distribution was determined by the position of the Intertropical Convergence Zone relative to the GRV. The colder air mass was upstream of the GRV in both case studies. During the day, the convective boundary layer in the warmer air mass on the downstream side heated up stronger and quicker than in the colder air mass. The most suitable variable describing the timing of the gap flow was found to be the pressure gradient at pass height, which corresponds roughly to the 800 hPa pressure level. In both cases the gap flow exhibited a strong daily cycle, which illustrates the importance of the thermal forcing due to differential heating over complex terrain in addition to the large-scale forcing due to air mass differences. The start, strength and the duration of the gap winds within in the valley were location-dependent. For both cases, the strongest winds occurred after sunset and in the ongoing night downstream of the gap and on the corresponding lee slope. The ERA5 reanalysis captures both events qualitatively well but with weaker wind speeds than in the mesoscale numerical simulations. Hence, ERA5 is suitable for a future climatological analysis of these gap flows.
Evaluación feminista de formaciones en violencias de género: una propuesta situada
Authors: Biglia Barbara , Luxán Serrano Marta , Jiménez Pérez Edurne
Published: April 2022

Las violencias de género (VGs) son un grave problema que debe abordarse con estrategias multi-situadas e integrales que incluyan cambios sociales, culturales, políticos y económicos. Este artículo quiere contribuir a la mejora de la evaluación de los procesos formativos en VGs, asumiendo que la evaluación de las políticas preventivas es un paso fundamental en las estrategias de desarticulación de dichas violencias. Para ello, basándonos en la experiencia del proyecto de investigación-acción europeo //anonimizado//, así como en las propuestas metodológicas feministas, y los enfoques de evaluación participativo-empoderador y colaborativo, formulamos y operativizamos seis criterios evaluativos para el monitoreo de formaciones: de posicionalidad, de interacción, de cuidado, de respuesta, de influencia y de difracción. Sumados al análisis del contexto de intervención, estos criterios pretenden ser útiles para evaluar de manera profunda, triangulada y procesual las acciones formativas en VGs yendo más allá de la medición de impacto en las personas participantes. Nuestra apuesta es contribuir a la mejora de las intervenciones educativas promoviendo procesos evaluativos que sean, en sí mismos, acciones políticas que colaboren en la desarticulación de las violencias de género.
Enerji Kaynaklarının Enerji Yoğunluğu Üzerindeki Etkileri: Enerji İthalatçısı Yükselen Ekonomilerden Kanıtlar
Authors: NAIMOGLU Mustafa , ÖZEL Bilal
Published: April 2022

Enerji alanında dışa bağımlı ekonomiler için enerjinin daha yüksek verimlilikte veya daha düşük yoğunlukta kullanılması oldukça önem arz etmektedir. Enerji ithalatçısı yükselen ekonomilerde 1990 yılında 1 birim (koe) enerji başına 4.64 birim çıktı (GSYİH) elde edilirken 2018 yılına gelindiğinde bu değerin 5.58 birime ulaştığı görülmüştür. Dolayısıyla bu ekonomiler enerji kaynaklarını 1990-2018 döneminde daha yüksek verimlilikte veya daha düşük yoğunlukta kullanarak daha fazla çıktı elde etmeyi başarmışlardır. Bu yüzden özellikle enerji alanında dışa bağımlı ekonomilerde söz konusu başarının sürdürülebilirliği için hangi enerji kaynağının enerji verimliliğini artırdığı veya enerji yoğunluğunu düşürdüğü sorusunun cevabı son derece son derece önemlidir. Dolayısıyla bu çalışmanın amacı; 1990-2018 yılları arasında enerji ithalatçısı 16 yükselen ekonomi için enerji yoğunluğunu etkileyen faktörleri panel veri analizi yardımıyla araştırmaktır. Enerji yoğunluğuna ilişkin model, Ortak İlişkili Etkiler Ortalama Grup (CCEMG) ve Genelleştirilmiş Ortalama Grup (AMG) tahmincileriyle tahmin edilmiştir. Elde edilen bulgular, hidro ve elektrik kullanımının enerji yoğunluğunu azalttığını; kömür, petrol ve doğalgaz kullanımının ise enerji yoğunluğunu artırdığını göstermiştir.
LALS Staff Seminar
Authors: Skalicky Stephen
Published: April 2022

A greatest-hits, whirlwind tour of highlights from LALS staff who have only two minutes to talk about their recent research! You’ve heard of three-minute thesis, but what happens after you graduate? Apparently, you lose a whole minute. Kick off the new trimester by getting to know academic staff from the School of Linguistics and Applied Language studies a bit better. In this seminar, staff in the School will each discuss some of their current research. However, there is a catch! Each staff member is limited to two presentation slides and a total presentation time of two minutes. Come watch them efficiently and expertly explain their research! You’ll gain a better understanding of the breadth and wealth of the research being performed by members of the School of Linguistics and Applied Language studies.
Når seksåringen spør!
Authors: Berg Vibeke Støren
Published: April 2022

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Håndball er ingen frøkensport
Authors: Broch Harald Beyer
Published: April 2022

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The world summit for social development: issues for children
Authors: Chawla Louise
Published: April 2022

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Electrochemical Deposition of Highly Catalytically Active Palladium Nanoparticles - Application to Methanol Fuel Cell Anodes and its Kinetic Studies
Authors: Bahuleyan Bijal Kottukkal
Published: April 2022

Fuel cell technology is a green and promising energy source for the future generation. Amongst all fuel cells, methanol oxidation with very low overpotential at modified electrodes is important for understanding and developing methanol fuel cell anodes. Platinum (Pt) is a well-known catalyst for the methanol oxidation reaction. However, Pt is expensive and also methanol oxidation intermediates adsorbs very strongly onto its surface. In the present study, a less expensive and highly active electrocatalyst was developed using palladium (Pd) by simple electrochemical technique. The scanning electron microscope (SEM) displays that small sized nanoparticles are in the range of 4-8 nm. The prepared material shows excellent electrocatalytic activity with quite low overpotential at room temperature. In addition, to understand the kinetics, energy of activation was determined by studying the methanol oxidation reaction at different temperature. The onset potential decrease with increasing temperature implies that the kinetics of the process improves at elevated temperature. The lowest activation energy was found to be 20 kJ/mol which is almost comparable with many Pd based materials.
Features of clinical course and skin lesions associated with new coronavirus infection in children
Authors: Plotnikova Inga Albertovna , Zelentsova Vera Leonidovna , Lavrik Irina Gennadiyevna , Egorov Arseniy Alekseevich , Nakhratova Svetlana Andreevna
Published: April 2022

Annotation. This article discusses the features of skin lesions and the clinical course of a new coronavirus infection in children. Among the extrapulmonary signs associated with COVID-19, dermatologic manifestations have increasingly appeared in the past few months. The aim of the study was to correlate available data in the literature on variants of dermatological manifestations of COVID-19 in children with clinical examples of skin lesions associated with this infection in patients seen by a specialized dermatologist. We used PubMed and Cyberleninka search engines for the period 2020–2021 Systematized variants of dermatological syndromes in children who had undergone COVID-19 described in reviews of materials by domestic and foreign researchers. The authors analyzed the primary medical records and photographic archives of children admitted to the outpatient clinic of a dermatologist at Yekaterinburg municipal clinical hospital No. 9 for 1 month after the established family contact with a new case of coronavirus infection. Analysis of scientific literature data showed that SARS-CoV-2 virus-associated skin lesions in children were more frequent in the mild course of infection, presumably with the implementation of an immunocomplex mechanism of vascular and epithelial damage. The pronounced vascular damage is a distinctive feature of COVID-19-related exanthemas, especially when localized on the fingers of the lower extremities. This article presents 5 clinical cases of children with various forms of acute dermatoses: urticaria, frostbite-like exanthema of the fingers, onychodystrophy, alopecia, and generalized pustular psoriasis of Zumbush. Only three children had laboratory confirmation of SARS-CoV-2 infection.
Node Localization in a Network of Doppler Shift Sensor Using Multilateral Technique
Authors: Thursday Ehis Akhigbe-mudu
Published: April 2022

Localization is the process of determining the location of a target(s) in a given set of coordinates using a location system.However, due to environmental uncertainty and Doppler effects, mistakes in distance estimations are created in physical situations, resulting in erroneous target location. A range-based multilateration technique is presented to improve localization accuracy. Multilateration is the method of calculating a position based on the range measurements of three or more anchors, with each satellite acting as the sphere's center. The distance between the satellite and the receiver is represented by the sphere's radius. The intersection of four spherical surfaces determines the receiver's position. This study's approach proposes a simple measure for evaluating GRT based on reference node selection. The algorithm utilizes these reference nodes, seeking to determine the optimal location based on ranging error. It calculates GRT values for each of the three node combinations. This study evaluates the performance of range-based localization using the Multilateration Algorithm with a Correcting Factor. The correction factor is applied to both the anchor node and the node to be measured; hence, the localization error is significantly reduced. In terms of how much time and money it takes to run and how much hardware it costs, the new method is better than some of the current methods.
Removal of Cresol Red by Adsorption Using Wastepaper
Authors: Salman Mohamad , Demir Muslum , Tang Kuok Ho Daniel , Cao Linh Thi Thuy , Bunrith Seng , Chen Tse-Wei , Darwish Noura M. , AlMunqedhi Bandar M. , Hadibarata Tony
Published: April 2022

The utilization of less expensive and more effective adsorbents derived from a variety of basic materials has been investigated. The research aimed to investigate the feasibility of employing waste paper as the adsorbent to remove the cresol red (CR) dye from wastewater through adsorption mechanism. Langmuir, Jovanovic, and Freundlich model were observed for isotherms models, while pseudo-first-order and pseudo-second-order were examined for kinetic models. The results indicated that increasing the adsorbent dose and contact time gave no significant effect to adsorption capacity while adsorption capacity increased with the increasing of pH until it reached a maximum at pH 8, and raising the starting dye concentration leads in a significant increase in adsorption capacity (16.7 mg/g). When the experimental adsorption isotherms and kinetic were fitted using the Freundlich models and pseudo-second-order model, it was discovered that those models were more accurately represented by the data, as indicated by a high correlation coefficient (R2) of 0.974 and 0.963.
Abordagem familiar e fortalecimento de vínculos pela prática de educação em saúde na atenção básica
Authors: Sousa Italla Lohany Lima de , Vale Cibele Silva do , Crispim Letícia Vieira , Vale Marcelo Mota do , Silva Natana Souza da , Borges Maria Fernanda de Sousa Oliveira
Published: April 2022

O artigo tem por objetivo relatar a experiência da prática de educação em saúde com o grupo “Famílias Fortalecidas”, em uma Unidade Básica de Saúde de Rio Branco-Acre, na perspectiva dos residentes do Programa de Residência Multiprofissional Integrada em Saúde da Família e Comunidade, da Universidade Federal do Acre. O referido grupo abrangeu dez famílias em situação de vulnerabilidade e foi realizado nos meses de setembro e outubro de 2019, por meio de encontros semanais com rodas de conversas. Foram contemplados temas relativos à convivência familiar, respeito, limites, amor, empoderamento, comunicação assertiva e abordagem da família como base fortalecedora para superar problemas. A realização do grupo foi de grande relevância na formação da residência, permitindo o desenvolvimento de uma iniciativa baseada na atuação interprofissional e escuta qualificada, com uma prática inovadora de educação em saúde direcionada para o fortalecimento de vínculos nas famílias. Mediante a experiência, foi possível constatar que a abordagem familiar consiste em uma promissora estratégia de promoção da saúde na atenção básica.
As externalidades do comércio de armas de fogo e seus impactos em relação aos homicídios no Brasil
Authors: Fernandes Alan , De Souza Luiz Ronilson
Published: April 2022

O Brasil tem como um dos seus grandes problemas as altas taxas de homicídio. São mais de 1 milhão de pessoas mortas no último dez anos, o que o coloca como uma das nações mais violentas. Não obstante o recurso às iniciativas penais para seu enfrentamento, que historicamente perfaz as políticas públicas de segurança voltadas à redução dos assassinatos, coteja-se que outros aspectos de intervenção estatal têm a capacidade de interferir nesse fenômeno, compondo um espectro mais amplo de ação política. Neste trabalho, o tema dos homicídios é tratado em correlação ao comércio de armas de fogo, valendo-se, para tanto, das discussões sobre externalidades presente na literatura. Segundo o Atlas de Violência 2019, 71% dos homicídios ocorridos no Brasil são praticados com o emprego de arma de fogo, o que demonstra a forte correlação entre ambas variáveis. Partindo das análises sobre os custos de perda de bem-estar provocados por essas mortes e dos dados sobre o estoque de armas no país, este trabalho pretende apresentar o impacto econômico das vendas de armas em relação aos homicídios, estabelecendo-se referenciais de contrapartida, tais quais os modelos ligados aos impactos ambientais produzidos por algumas atividades econômicas e já adotados no Brasil.
Pre and post operative orthodontics in orthognathic surgery
Authors: Singh Navpreet , Kaur Sukhpal , Sharma Vishal Kumar
Published: April 2022

In the early 2l'st century, orthodontics differs from what was done previously. There is more emphasis now on dental and facial appearance reflecting awareness that parents and patients seek treatment largely because of concern about facial appearance and those psychosocial problems related to appearance. Second, patients now expect and are granted a greater degree of involvement in planning treatment. Last, Orthodontics now is offered much more frequently to older patients as part of a multidisciplinary treatment plan involving other dental and medical specialties. Orthognathic Surgery is mostly performed to correct developmental or acquired oral and maxillofacial skeletal deformities. The type of tooth movement and mechanics required for Orthognathic surgery is oftentimes different to standard Orthodontics. It is imperative that the treating Orthodontist is conversant with the principles and technical mechanical requirements in the management of the Orthognathic patient.
Prosthodontic management in residual ridge resorption
Authors: Vasudeva Dhananjay
Published: April 2022

Bone resorption is a chronic, progressive disease and irreversible process that occurs in all patients and can be classified into six different types. There are some of pathological and etiological factors that may cause resorbed ridge such as anatomical, prosthodontics, metabolic and systemic factors. The present article, were reviewed the literature concerning on possible mechanism, diagnosis, etiological factors and how to manage and prevent of resorbed ridge for edentulous patients.
Partial purification of type A and B flagellin from Pseudomonas aeruginosa for preclinical use
Authors: Al-Anssari Mohammed Jaafar , Al-Charrakh Alaa H.
Published: April 2022

Background: Due to their importance in vaccination, we tried in this study to purify the flagellin type a and type b separately from P. aeruginosa by a simple and cheap method with acceptable purity for preclinical use. Methods: Specific primer was used to detect the type a and b flagellin gene (fliC gene) in P. aeruginosa clinical isolates. Flagellin was purified from P. aeruginosa according to standard procedure with some modifications. Protein concentration and protein absorption were measured using a special spectrophotometer at 270 wavelength. Endotoxin removal was done using a special column. Then, the presence of flagellin was detected by SDS-PAGE. Results: The results showed two types of flagllin genes in different strains; type a (1020 bp) and type b (1250 pb) that amplified by PCR. Results also showed an appropriate concentration of purified protein by the used method with acceptable purity and decreasing the endotoxin to an acceptable level for preclinical use (less than 2.2 EU/ml). Conclusion: This research focused on the isolation and purification of flagellin protein from P. aeruginosa.
Association of lipid abnormalities with thyroid dysunction in patients of subclinical hypothyroidism
Authors: Rawat Ramakant , Kumar Manoj , Kumar Sushil , Kumar Granth
Published: April 2022

Background: Dyslipidemia is thought to associated with the risk of cardiovascular disease development. Overt hypothyroidism is associated with lipid abnormalities. However, the relationship between subclinical hypothyroidism (SCH) and pattern of lipid abnormalities is not well eastablished. The aim of this study was to find the lipid abnormalities in patients of subclinical hypothyroidism (SCH) and determine relationship between lipid level and TSH. Methods: Serum lipid levels of 92 patients with subclinical hypothyroidism (SCH) and 110 age and sex matched healthy controls were evaluated in this cross sectional case control study. Results: In this study total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) were significantly higher (p value<0.05) in patients with subclinical hypothyroidism (SCH) as compared to control group. Triglycerides (TG) and very low density lipoprotein cholesterol (VLDL-C) were also increased in these patients as compared to control but the difference was not statistically significant. High density lipoprotein cholesterol (HDL-C) was found to be marginally lower in these patients than control. Conclusions: Total cholesterol (TC) and low density lipoprotein (LDL-C) are higher in patients with subclinical hypothyroidism (SCH) as compared to healthy controls.
The effect of aromatase inhibitors on infertile men and its relation to sexual desire
Authors: Keshk Ahmed Ali Mohammed , Roaiah Mohamed Farid , Abdel-Moneam Alaa Mohammed , Alahwany Amr Tharwat , Zaki Shady
Published: April 2022

Background: Aromatase inhibitors (AI) can boost endogenous testosterone production without increasing circulating estrogen levels, as shown with estrogen receptor modulators, Aim and Objectives: The study's goal was to determine the efficacy of aromatase inhibitor medication in improving spermatogenesis in oligozoospemic and azoospermic males, as well as its relationship to sexuality. Subjects and methods: This study was done on eighty man subjects joining the outpatient clinic of Andrology, Kasr El Aini Hospital, Cairo University during the peroid from April 2018 – April 2020, and they were divided into (2) groups, 40 subjects in each group.  Results: There was a statistically significant difference in serum total testosterone measured before and after treatment in normal FSH patients with a p value ≤ 0.05. There was a notably not important change in sexual desire questionnaire measured before and after treatment in normal FSH patients with a p value > 0.05, Conclusion: ERs and aromatase share topographic sites in the brain with pheromones, indicating that estrogen influences both early sexual maturation and sexual behavior in adults. Estrogen can maintain libido while also influencing the number of serotonin receptors in the brain, which modulates mood, mental state, cognition, and emotion.
Trading habits among Indian youth during and post lockdown period
Authors: Parameshwar Praneet , Ashok Rampalli Eshwara , Jain Anuj
Published: April 2022

Driven by quarantine boredom, many 18 to 30-year-old Indians have turned to stock trading during the pandemic. India's youth population is driving a boom within the country's investment landscape as millions are piling into stock trading during the pandemic. The coronavirus securities market meltdown in March gave Indian millennials an enormous opportunity to start out investing within the stock exchange.  The pandemic which has resulted in people spending more time in their homes might also be another reason for their tilt towards the stock market trading. While the pre-covid period for millennials was less about saving and investment and more about spending, in the post-covid world they seem to be more curious about making and saving money fast through all means possible including risky stock exchange bets and unregulated crypto currencies.

India's various and growing online investment platforms like Zerodha and Upstox have also seen a surge in demand, particularly among younger, less experienced investors, as they lower entry fees and ease access to overseas markets. Technology helps Indian youth access the stock markets like never, Indian brokerage companies say.
Estimation of the functions of kidney and liver in the infected COVID-19 patients
Authors: Salman Rasha Ibrahim , Dilfy SajaHussain , Jumaa Mohammd Abdalhamza , Qaddoori Hayder T. , Mudhafar Mustafa
Published: April 2022

Coronavirus disease 2019 (COVID-19) is one of the respiratory system diseases with unknown etiology and clinical characteristics. Defects in the liver and kidneys appear to be common in Covid-19 patients. Aspartate transaminase (AST) enzyme, Urea, creatinine, and Alanine Aminotransferase (ALT) enzyme levels are frequently exalted at the start or within the infection. This pretext suggests that Covid-19 interferes with the functions of the liver and kidneys. The current study was aimed to estimate the biochemical biomarkers changes that related to liver and kidney functions, such as ALT, AST, urea, and creatinine, in infected patients. 50 patients were diagnosed with infected between May 1 and 1 August 2020, in Dayala Hospital. 100 samples included 50 control and 50 infected were carried out to evalute the level of biochemical biomarkers (the plasma urea, creatinine, ALT and AST).The results showed increased of ALT, AST, BUN and creatinine levels in the infected samples compare with the control samples. The mean serum kidney parameter (Urea, creatinine ) levels were 57.84±10.46, 1.61±0.18respectively, while the mean value of serum liver enzyme (AST, ALT) levels were  41.94±4.59 and 42.54±4.45, respectively, with high significant different (P<0.001) with control healthy group.