bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of Flux on the Structural and Thermoluminescence Properties of
Y2SiO5:Dy3+ Nanophosphors for Dosimetric Applications
Authors: Dhanalakshmi K. , Reddy A. Jagannatha , Revathi V.
Published: April 2022

Potassium nitrate (KNO3) and ammonium chloride (NH4Cl) flux were added during the combustion
synthesis of Y2SiO5:Dy3+ (9 mol %) nanophosphors, which influenced its structure, morphology and
thermoluminescent properties. Reduction in the crystallite size to ~ 7 nm observed using XRD analysis.
Surface morphology enhanced in terms of its texture. Thermoluminescence analysis of the prepared
phosphors irradiated with gamma dose over a range of 500 Gy – 4 KGy at a constant heating rate 3 ºC
s–1 have been carried out. Kinetic parameters were evaluated by Chens method and activation energy
was found to be 1.01-1.3 eV. Flux addition resulted in creation of large number of charge carriers and
hence the material become the potential for dosimetry applications.
Variation in Aerosol Optical Depth (AOD), NO2 and Tropospheric Ozone
Column during the Lockdown Period Amid COVID-19 Pandemic over India
Authors: Bhadauria Neha , Chauhan Abhishek , Ranjan Rajnish , Jindal Tanu
Published: April 2022

With the emergence of COVID-19 in late December 2019 in China and its exponential spread around
the globe, on 11th March 2020 WHO declared it global pandemic. The first case of novel coronavirus
in India was reported on 30th January 2020 in Kerala state of India. India is currently experiencing the
worst situation amid COVID-19 pandemic with its 3rd position having the highest number of confirmed
cases amongst the countries around the world with huge social and economic losses. Many studies
reported that there is an improvement in air quality around different parts of the world due to cessation
of vehicular, industrial and anthropogenic activities. The present study highlights the impact of
COVID-19 pandemic on air quality over India during the lockdown period amid COVID-19 pandemic.
Results revealed the significant decline in NO2 and aerosol optical depth (AOD) all around in India
except for ozone. There has been a considerable decline in air pollution because of restricted activities
during COVID-19 pandemic over India. Meteorological factors may not be directly related to the
number of outbreaks. Although the COVID-19 lockdown has a negative impact on economic aspects
but it has a positive impact on air quality. The COVID-19 pandemic impacted the lives of millions and
having numerous global implications made humans believe that nothing will be normal as earlier. The
study may help authorities and policy makers on taking specific measures for the pandemic it can be
helpful in future to frame policies to reduce air pollution by policy makers.
A Simple and Reliable RPLC Method for Simultaneous Determination of
Five β-Blocker Drugs in Pharmaceuticals and Human Plasma
Authors: Albishri Hassan M. , Alshammari Basmah H , El-Hady Deia Abd
Published: April 2022

A simple and reliable simultaneous determination of β-blocker drugs (acebutolol, pindolol, atenolol,
nadolol and oxprenolol) was accomplished by reversed phase liquid chromatography-ultraviolet
detection (RPLC/UV). The chromatographic separation was achieved on a SB-C18 ZORBAX® column
(250 mm × 4.6 mm i.d., 5 micron), using a mobile phase consisted of 0.02 mol L-1 phosphate buffer
(pH = 3.5)-acetonitrile (70:30, v/v). Isocratic elution was used at a flow rate of 1.0 mL min-1. The UV
detector was operated at 230 nm and the column temperature was maintained at 30 °C. Under optimal
conditions, a good linearity in the range of 10-500 μg L–1 for five β-blocker drugs with the correlation
of determinations (R2) higher than 0.9971 was achieved. The proposed method was successfully applied
to routine analysis of several β-blockers in pharmaceutical tablets. Moreover, the results obtained from
this study demonstrated that the validated method can be successfully used to routine analyze the
therapeutic concentrations of several β-blockers in human plasma. The LOD and LOQ for selected
β-blockers were ranged within 0.050-0.538 and 0.152-1.794 μg L-1 & 0.192-0.845 and 0.641-2.562
μg L-1, respectively, for pharmaceutical and plasma samples. Results of intra-day and inter-day precision
expressed in terms of %RSD were found to be less than 2.0. Accuracy of the RPLC method was
assessed by performing replicate analyses of selected β-blockers in samples against a calibration
curve indicating high recoveries within 96.7-110.5%. This new method could be used for analysis of
large sample series of five β-blockers in routine laboratory work.
Effect of Electric Voltage on Simultaneous Electrocoagulation-Photocatalysis
Process in Removal of Ciprofloxacin-Methylene Blue Mixture and Hydrogen Recovery
Authors: Pratiwi Reno , Dilla Dianah Salsha , Slamet
Published: April 2022

In recent years, the number of health problems and hospital activities have increased with the amount
of liquid waste produced. Therefore, this study aims to observe the effectiveness of wastewater treatment
of antibiotics ciprofloxacin and methylene blue mixture using electrocoagulation and photocatalysis
processes simultaneously. The observation focuses on the effect of the electric voltage used in
electrocoagulation, considering the process is simultaneously conducted with photocatalysis. The
smaller electrical voltage (20 V) increases the effectiveness of removing ciprofloxacin and methylene
blue by 92.5% and 98.5%, respectively. Furthermore, hydrogen yields reached 2.07 mmol/g
photocatalyst at 50 V voltage, while 0.98 mmol/g hydrogen gas photocatalyst was obtained when 20
V voltage was used in the process. A simultaneous process was developed by increasing the performance
of the photocatalyst in terms of its ability to produce hydrogen. Similarly, the electrocoagulation
voltage is sufficiently to maintain the effectiveness of removing dissolved pollutants.
Atmospheric Carbonaceous Matter over South Asian Region: A Review of
Variation in its Thermal, Optical and Molecular Properties During Last Two-Decades
Authors: Verma Sushant Ranjan , Pervez Shamsh , Verma Madhuri , Dugga Princy , Mishra Archi , Tamrakar Aishwaryashri , Pervez Yasmeen Fatima , Deb Manas Kanti , Shrivas Kamlesh , Karbhal Indrapal
Published: April 2022

Linear growth of atmospheric particulate matter (PM) over south Asia is one of the significant problems
affecting human health and climate change. In addition, these particulate matters have the potential to
absorb and scatter solar radiation, causing a disturbance in the earth radiation budget resulting in this
region facing several floods and droughts, excessive glacier melting, loss of a million lives, and many
more in the last two decades. This context aim to provide a brief knowledge of PM2.5 chemical
composition and their optical properties. To assess, existing field studies conducted after the year
2000 were reviewed and summarized in terms of geographical, temporal and seasonal variation across
the region. It is seen that PM2.5 were significantly increased by 25.04% in the last two decades. Annual
PM2.5 was up to 10 times the prescribed limit set by world health organization (WHO) guidelines.
Annual PM2.5 was higher in the northern than southern cities, and more increased in Indo-Gangetic
plains (IGP) than coastal and southern region (CASR) and high altitude (HA) regions. The highest
seasonal variation occurred in the winter months. Organic carbon and elemental carbon contribute
nearly 31% of the annual average PM2.5 ranged from 14 to 70%. Higher variability in the percentage
contribution of organic carbon and elemental carbon suggests different sources mainly influences this
region. Biomass and fossil fuels, vehicular emission, and secondary aerosol are the major source factors
in the inland region, while marine salt and soil dust are dominant fractions observed in a coastal area.
Light absorbing brown carbon contributes significant amount in this region, and it’s clearly seen by
aerosol optical depth, varied from 0.04 to 1 in the entire region.
Synthesis of Novel Oxazolidinone Derivatives Bearing
Benzo[b]thiophene Moiety and their Antimicrobial Evaluation
Authors: Patekar Mukunda R. , Jadhav Ghanshyam R. , Deshmukh Dattatray G. , Medhane Vijay J.
Published: April 2022

Literature survey revealed that the oxazolidinone derivatives exhibit pharmacological significance.
Thus, by targeting to design new antimicrobial agent, a novel series of oxazolidinone derivatives
(11a-t) having benzo[b]thiophene moiety were synthesized. Chemical structures of the synthesized
compounds were confirmed through spectroscopic techniques such as IR, NMR and Mass spectroscopy.
All the new synthesized compounds were subjected to in vitro antimicrobial testing by estimating
zone of inhibition toward Gram-positive pathogens like Bacillus subtilis ATCC 6633, Staphylococcus
aureus ATCC 25923 and Streptococcus pyogens ATCC 8668.
Synthesis and Characterization of Molybdenum Incorporated Cubic Mesoporous
Materials and the Study of Catalytic Activity of SBA-1 and MCM-48
Authors: Pathak Dhanju Mani , Shah Kishor Kr , Ghosh Pankaj Kumar , Talukdar Anup Kumar
Published: April 2022

In present work, a two step synthetic procedure for the synthesis of MCM-48 materials is proposed. A
sample of Mo-MCM-48 with Si/Mo ratio 100 was synthesized applying the same procedure as applied
for the synthesis of Si-MCM-48 materials, only difference was that ammonium hepta-molybdate was
added as a source of molybdenum in the second step. Two samples of SBA-1 and Mo-SBA-1 were
also synthesized. The XRD patterns of synthesized Si-MCM-48 and Mo-MCM-48 and that of SBA-1
and Mo-SBA-1 were in good agreement with those of reported data for the cubic MCM-48 and SBA-1
materials. The synthesized samples were further characterized by FT-IR (for phase formation), TGA
(for thermal stability), N2 adsorption-desorption isotherm (for surface are, pore size and pore volume),
UV-DRS (for insertion of Mo in the framework) and SEM (for morphology). The catalytic activity of
synthesized MCM-48 was found to be better than SBA-1 for the esterification reaction of benzyl
alcohol and acetic acid.
Synthesis of Novel Organic Compounds from Cyanuric Chloride Containing
1-(4-(7-Chloroquinolin-4-ylamino)phenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one
Chalcone for Biological Applications
Authors: Selvaraj Revathy , Suresh J. , Vakees E. , Arun A.
Published: April 2022

This article reported the synthesis of triazine having quinoline chalcone moiety and its derivatives.
Cyanuric chloride, 1-(4-(7-chloroquinolin-4-ylamino)phenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one
(KKC), aniline, 4-nitro aniline and 1-naphthol used for the synthesis. Triazine having chlorine atom
was periodically replaced by the above materials to synthesize the desired product. Synthesized triazine
based organic molecules were characterized using elemental analysis, FT-IR, 1H NMR and UV-visible
spectroscopic techniques. Antibacterial activity of synthesized compounds was found on Gram-positive
and Gram-negative bacteria by utilizing MIC method, most of the synthesized compound shows higher
activity on Gram-positive bacteria Staphylococcus aureus with the value of 7.81 (mg/mL) than
Gram-negative Escherichia coli. The presence of quinoline chalcone moiety and electron rich species
responsible for higher antibacterial activity of the compounds on the tested bacteria.
Sol-Gel Derived Cobalt-Doped CeO2 Nanocomposite on
Gold Electrode for Glucose Electrochemical Sensing
Authors: Bansod N.H. , Chaudhari G.N. , Bodade A.B. , Kharat Prashant B.
Published: April 2022

Development of a highly sensitive, repeatable glucose biosensor based on Co-doped CeO2 nanoparticles
is presented in this study. The sol-gel citrate approach was used to synthesize cobalt doped CeO2
(CoxCe1-xO2) nanoparticles (5, 10 and 15%). The X-ray diffraction (XRD), UV-visible spectroscopy,
FTIR, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were applied
to characterize the structure and morphology of the nanocrystal. The Co-doped CeO2
nanoparticles-chitosan (CS) composite film was coated on an gold plate using a spin coating process.
An adsorption approach created a GOX/CHIT/CCO/Au bioelectrode by immobilizing the enzyme
glucose oxidase. The cyclic voltammetry and electrochemical impedance spectroscopy were used to
check the electrochemical performance of biosensors. The designed biosensor had an outstanding
linear response to glucose oxidase (30–220 mM) by a detection limit of 30 mM. The biosensor has an
enormous affinity (Km = 3.010 mM), excellent repeatability and storage stability up to 28 days.
Erasmus Guillain-Barre Syndrome Outcome Score (EGOS) to predict functional outcomes
Authors: Ulfa Maria , Widowati Titis , Triono Agung
Published: April 2022

Background Guillain-Barre syndrome (GBS) has a highly diverse clinical course and prognosis. Predicting functional  outcomes  is needed in order to give appropriate treatment and counseling. Erasmus Guillaine-Barre Syndrome Outcome Score (EGOS) is simple scoring based on age onset, pre existing diarhea and GDS score obtained from  medical record and physical findings that can be used by clinician to predict the functional outcomes  of the child with GBS..
Objective To assess the usefulness of EGOS to predict functional  outcomes  of GBS patients.
Methods A retrospective cohort study to see the functional outcomes which is walking or not walking of children with GBS aged 6 months to 18 years hospitalized in RSUP Dr. Sardjito, Yogyakarta from 2014 to 2019 were enrolled by a purposive sampling method. Bivariate and logistic regression multivariate backward method analyses were used to assess for possible correlations between predictive factors and functional  outcomes  in GBS patients.
Results A total of 33 patients were enrolled and analyzed. After six months of weakness, 57.1% of patients with high EGOS (> 4) had poor functional  outcomes  according to the Hughes scale, scoring to asses functional  outcomes . Patient with high EGOS (> 4) had greater risk of poor functional  outcomes  compared to patients with lower EGOS (≤ 4) (P=0.006; OR 33.3; 95%CI 2.74 to 404.94). Poor functional  outcomes  of GBS patients was not influenced by preceding upper respiratory tract infection, cranial nerve involvement, use of ventilator, autonomic dysfunction, immunotherapy, complicating disease, rehabilitation, or nutritional status.
Conclusion High EGOS of >4 is a predictor for poor functional  outcomes  in children with GBS.
Modeling of Talent Acquisition for Organizational Development
Authors: Shaikh Sadique , Dahad Mamta
Published: April 2022

In this work, we try to explain the concept of human talent with the help of some equations and models, which are not generated by any one previously. Here we also trying to explain ‘human talent is not resources it’s itself one of the great sources to find out all possible resources’. Because we cannot predict human talent directly, to judge it, we should have to adapt some methods for talent acquisition, which we explained with the help of models and equations. How human talent is one of the great source, if we want to know it, we have to observe human behavior, wits and intelligence strictly by working simultaneously with them. In this work our conclusion is ‘human talent natural and dynamic in nature’ and can be easily diverted to perform any task. Where as machine and technology has programmed memory, logics i.e. artificial intelligence (AI), and hence in result talent is fixed and constant in nature and only able to do repetitive and fixed task and also for proper handling and utilization of machines and technology need arises of human talent. In last only want to mentioned work is very useful in all HRM and OB practices.
First Analytical Solution of Intracellular life Cycle of SARS-CoV-2
Authors: Isea Raúl , Mayo-García Rafael
Published: April 2022

The goal of this paper is to show that it is possible to obtainan analytical solution of the life cycle of SARS-CoV-2 based on a deterministic model. To do this, this work solved a system of twelve differential equations where we obtained two points of equilibrium. The first critical point corresponds to the initial conditions regarding the virus entry into the cell without replication in the cell, and the second involved one is the process of the transcription and replication of the virus in the infected cell.
Thermal properties of mineral wool insulation recovered from construction and demolition waste
Authors: Domonkos Mária , Zobal Ondřej , Prošek Zdeněk , Trejbal Jan
Published: April 2022

Mineral wool is one of the most commonly used types of thermal insulation in the European Union at the present, however, it generates massive amounts of waste. From an environmental standpoint, recycling or reuse of insulation materials seems to be a wise solution. This paper aims to study the thermal and structural properties of recycled mineral wool insulation recovered from construction and demolition waste. The thermal conductivity, the basic parameter characterizing thermal insulation materials, was measured using a heat flow meter. Test specimens with various bulk density (in the range 50–120 kg/m3) were made from micro-milled and chopped waste material (cladding of 30 years old building). The obtained results were compared with reference samples (non-contaminated blown mineral wool insulation Supafil Loft 045).
Influence of oxygen and argon plasma treatment on wettability and surface morphology of polypropylene microfibers
Authors: Ďureje Jakub , Prošek Zdeněk , Trejbal Jan , Potocký Štepán , Tesárek Pavel
Published: April 2022

The surface treatment of polypropylene microfibers by plasma processing in oxygen and argon was studied with the motivation to increase their cohesion with the cement matrix. By plasma treatment, it is possible to modify the surface of the microfibers mechanically, chemically or with a combination of both. The microfibers were modified using the reactive ion etching plasma system. The surface of the microfibers was modified by oxygen and argon plasma. The wettability of the microfibers was measured using the Packed Cell method. Furthermore, the weight of the microfibers before and after plasma modification was measured. Finally, the surface of the modified microfibers was examined by scanning electron microscopy. Almost all modifications of the microfiber surfaces were able to increase their wettability with water. The wettability of the oxygen plasma treated microfibers increased on average by about 11%, the wettability of the argon plasma treated microfibers increased on average by about 6% compared to the fibers without modification. The mechanical effect of plasma treatment was proven only for microfibers modified by oxygen plasma.
Heat transfer model verification for thermal monitoring system of integral bridges
Authors: Jonáš Martin , Zatloukal Jan
Published: April 2022

Thermal actions considered on abutments of integral bridges by the European standard (Eurocode 1) might be in variety of certain situations underestimated. Based on this assumption, thermal monitoring system has been designed and installed into structure of bridge No. 27-117. Temperature profiles in five certain spots are being measured to provide sufficient basis for evaluation of real thermal actions on abutments of integral bridges. For purpose of measurement verification, elementary heat transfer models for finite element method solver were created. These models are being loaded by simplified temperature profiles reached in real time in-situ. Evaluated models provide verification data to compare with measured temperature profiles in structure and might provide information about temperature profiles probably reached during extreme weather situations.
Benchmark VERCORS 2022: mechanical response of the prestressed concrete containment wall to ambient conditions
Authors: Krátký Štepán , Havlásek Petr
Published: April 2022

The VERCORS benchmark was developed to provide a solid experimental basis for numerical modeling of concrete containment buildings (CCBs) to extend their lifespan. The goal of the first phase of the third benchmark is to present a blind prediction of CCB’s behavior across the whole lifespan and under periodic pressure tests. This paper summarizes the calibration of the material model based on the Microprestress-solidification (MPS) theory according to the provided laboratory experimental data. A special emphasis is given to the influence of the ambient conditions on drying creep and transient thermal creep of concrete and the calibration of the corresponding material parameters. These phenomena are studied on a representative section of the containment wall using weakly coupled thermo-hygro-mechanical analyses.
Determination of water absorption coefficient of unfired earth materials different in used clay and ratio of components
Authors: Mužíková Barbora , Plaček Otcovská Tereza , Padevět Pavel
Published: April 2022

The paper is focused on unfired rammed earth and its water absorption properties. Increasing the utilization of raw natural materials can be one of the approaches towards sustainable development. Different prescriptions were designed and specimens were rammed. Then they were put in the covering of nylon and settled in the box with soft foam that was moistened. The level of moistening was constant. The specimens were regularly weighted. Specimens with montmorillonite clay have the highest values of the water absorption coefficient. Montmorillonite clay has a higher binding capacity. The values are compared to values that were found in the literature. Then the maximal capillary water capacity by area was determined.
Microstructure modification of cement pastes using nanosilica
Authors: Ňachaj Daniel , Němeček Jiří , Němeček Jiří
Published: April 2022

The paper describes modifications of cement paste mixtures using nanosilica to affect their physical and chemical properties. Cement pastes from Portland cement CEM I 42.5R with three different substitution ratios of nanosilica 1.5, 3 and 4.5 wt.%/cem. were examined. Micromechanical response and microstructure were characterized using nanoindentation, statistical deconvolution and scanning electron microscopy. About 400 locations were examined on each sample over 40,000 μm2 area. The results indicate an increase of C-S-H phases by 11 vol.% in samples with 4.5 wt.% nanosilica replacement compared to pure Portland cement paste. The increase in C-S-H phases volume was accompanied by the decrease in CH phases by approximately 11 vol.%.
Mesh generation and mechanical tests of basic element cells of porous structures
Authors: Řehounek Luboš , Jíra Aleš
Published: April 2022

Advanced porous structures are novel, emerging materials with a broad range of applicability but a rather difficult means of design and manufacturing. The advent and availability of the additive manufacturing industry in the last decade has enabled for production of these structures via 3D printing of polymers and metals. This research deals with the design, mechanical testing and preparation of FEM meshes of novel gyroid structures manufactured by PA12 SLS 3D printing. As demonstrated, conventional means of CAD generation of these structures in the *.STL format are sufficient for manufacture of specimens, but not precise enough for the purpose of mesh generation for FEM due to errors in the geometry of tesselation. Mechanical tests show that the sheet gyroid variant is the preferable geometry as it offers the greatest peak compressive stress among all variants at the same material density.
Adhesion test – testing of selected adhesives on fired clay
Authors: Richterová Kristýna , Heinrich Pavel , Bílý Petr
Published: April 2022

The following paper deals with the comparison of adhesion of specimens made of fired clay and selected adhesives. The adhesion was tested on specimens at the age of one, two and three days in order to determine the parameters of young masonry. Nine different adhesives (adhesives intended for masonry and adhesives for others material) were tested in total.The above mentioned test is not standardized. The obtained results from the adhesion test determine the tensile strength between the adhesive and the fired clay and the adhesion of selected adhesive to the fired clay. The small specimens were made of two ceramic plates and an adhesive. Selected adhesives were applied to ceramic plates according to the usual standards. Eighty-one small specimens were produced in total – twenty-seven specimens for the adhesion test at each defined age of the specimens (one day, two days, three days). The produced specimens were cured in the climatic chamber with set laboratory conditions until the time of the test. The specimens were tested in the laboratory of the Heluz brick plant in Dolní Bukovsko. This paper deals with the procedure of preparation of the specimens, the course of the test and the comparison of gained results.
Detection of the presence of microorganisms during production of plasterboard
Authors: Sekavová Hana , Prošek Zdeněk , Karra’a George
Published: April 2022

The article introduces possibility how to use special material from plasterboard back to the production of plasterboards. The recycled material was prepared from standard plasterboards KNAUF WHITE (it means plasterboard type A according to European standard EN 520) [1]. Plasterboards were crushing, micromilled and separated from the paper on recycling line, which was developed in company Lavaris s.r.o. [2]. This material was used as an inert to the standard recipe instead of stucco. There were checked the influence on properties of final plasterboards in comparison with standard plasterboards.
Phase-field damage of laminated glass in explicit dynamics
Authors: Schmidt Jaroslav , Janda Tomáš
Published: April 2022

Laminated glass is aesthetic but also functional modern material, which has spread from the automotive industry to the civil engineering in the form of design as well as structural elements. Proper design of this material requires understanding not only its intact phase, but also its post-breakage behavior. To describe crack initiation and propagation the phase field damage model seems to be suitable tool despite the fact that this approach requires a fine mesh to sufficiently interpolate sharp discontinuity. In this contribution we investigate possibilities of explicit phase field dynamic model with specific use on glass plates, especially applied for dynamic impact load. The dependence of the result on residual stiffness term is examined and incorrect crack speed is observed. Usability of phase-field model is still uncertain.
New possibilities for recycling of mineral wool separated from thermal insulation waste
Authors: Trejbal Jan , Zobal Ondřej , Domonkos Mária , Prošek Zdeněk
Published: April 2022

It has become increasingly clear, that the recent consumption of mineral resources is unsustainable. The Czech Republic produces more than 217,000 tones of mineral wool annually, while its recycling stays unacceptably limited. This paper presents new possibilities how to recycle mineral wool from building insulation systems. Cladding of 30 years old building composed of FOS 125 facade was disassembled and its mineral wool boards were subjected to micro-milling in order to get filler and shortly chopped fibers to be the multifunction micro-aggregate in new design of plaster mortars. It was shown that mortars containing up to 1.2 wt. % of such waste exhibited decrease in pressure strength in the order of tens of percent than those made from reference mixture. On the other side, their bending strength was decreased slightly or oven improved. Other improvement was detected in thermal conductivity.
Ageing with Smartphones in Urban Brazil: A work in progress
Authors: Duque Marília
Published: April 2022

With people living longer all over the world, ageing has been framed as a socio-economic problem. In Brazil, older people are expected to remain healthy and autonomous while actively participating in society. Based on ethnographic research in São Paulo, Ageing with Smartphones in Urban Brazil shows how older people in a middle-class neighbourhood conciliate these expectations with the freedom and pleasures reserved for the Third Age. Work is what bonds this community together, providing a sense of dignity and citizenship. Smartphones have become of great importance to the residents as they search for and engage in new forms of work and hobbies. Connected by a digital network, they work as content curators, sharing activities that fill their schedule. Managing multiple WhatsApp groups is a job in itself, as well as a source of solidarity and hope. Friendship groups help each to download new apps, search for medical information and guidance, and navigate the city. Together, they are reinventing themselves as volunteers, entrepreneurs and influencers, or they are finding a new interest that gives their later life a purpose. The smartphone, which enables the residents to share and discuss their busy lives, is also helping them, and us, to rethink the very representation of ageing.
Folia Pharmaceutica Universitatis Carolinae L/2019
Authors: Opletalová Veronika , Vojtíšek Tomáš
Published: April 2022

Abstracts from the 9th Postgradual and 7th Postdoctoral Scientific Conference of the Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, 23–24 January 2019 Dedicated to the 50th Anniversary of the Founding of the Faculty of Pharmacy in Hradec Králové and 27th National Students’ Scientific Conference of the Faculty of Pharmacy in Hradec Králové, Charles University, Hradec Králové, 16–17 April, 2019.
Linking Budget and Policies: The Case of Ivory Coast
Authors: Kanyamuna Vincent
Published: April 2022

In the case of Ivory Coast, some budgetary reforms have been implemented since 1999 in order to improve the budget allocation and ensure a better translation of development strategies into budget. Unfortunately, taking into account national strategies and policies have not always been the main preoccupation during budgeting. However, the requirements of managing for results bring the fiscal authorities to pay particular attention to the establishment of the link between policies and budgets. Moreover, establishing this link between policies and budget is becoming a major issue since the West African Economic Monetary Union (WAEMU) adopted in 2009 new budgetary reforms to promote performance budgeting. So, this study addresses the issue of linking policies and budgets in the specific case of Ivory Coast. To that end, it focuses on the existing gaps between the budgeting process and policies through the Poverty Reduction Strategy Papers (PRSPs) or simply the National Development Plans (NDPs). The analysis of the current budgeting process shows that the budgeting is not based on the PRSPs and sectoral plans; the integration between planning and budgeting is low, the budgeting is done through a resource-based approach and the medium and long-term budgeting is not established. Moreover, the Parliament has not been involved in the budget process and PRSP elaboration especially in the last years. Only the civil society has been involved in the PRSP elaboration but they are not consulted during the budget process. Therefore, attention should be given to the challenges related to strategic planning, management style and actors to be involved. This must be done through (i) the drafting of sectoral plans based on the NDPs/PRSPs; (ii) the integration between planning and budgeting; (iii) the introduction of a strategic phase and a medium-term perspective to the budget process; (iv) the shifting from a resource-based to a results-based approach; (v) the increase of the involvement of parliament and civil society in the budget process. Further, the MTEF process that started in 2010 should be reinforced through the completion of a Macro-economic framework and a Medium Term Budgetary Framework, a national MTEF to give the ceilings on expenditure to line ministries for a medium and long-term view in order to establish their sectoral MTEFs. Moreover, the public financial management reforms should continue in order to reinforce the budget credibility which is essential in the establishment of good and reliable MTEFs.
Valuing African voices in Colleges/Schools of Education: introducing the Special Issue
Authors: Obiakor Festus E.
Published: April 2022

This article is aimed at introducing the Special Issue on “African Experiences in America’s Colleges/Schools of Education.” It also introduces the voices that are from African nations–these professionals are educated and employed in various regions of the United States. While their experiences in Colleges/Schools of Education (C/SOEs) have been rewarding, they have encountered negative experiences that are results of racism and xenophobia. The question is, How can their negative encounters be reduced so that they can maximize their fullest potential as students, faculty, staff, administrators, and leaders? This article sets the stage for responses to this question.
Family language policy and dialect-Italian dynamics: across the waves of Italo-Australian migrant families
Authors: Rubino Antonia
Published: April 2022

In this article I adopt a family language policy approach and a diachronic perspective to explore how the dialect-Italian dynamics unfolds differently within different cohorts of Italian migrants due to the hierarchical position of the two heritage languages. I highlight three main issues that emerge across time in the language policies in the home; the relevance of linguistic stratification in the migrants’ repertoires, especially with regard to the interplay between language ideologies, beliefs and practices; the extent to which we can talk of agency of choice vis-à-vis linguistic stratification; and the role of education. The tension between the two languages generally plays out in favour of Italian, in spite of the emotional attachment to dialect that persists across generations. The language policies of Italo-Australian families call attention to the challenges that migrants, and dialect speakers in particular, have to face regarding language maintenance, while the diachronic perspective highlights the dynamic and contextual nature of such policies.
The crystal structure of 2,4,4-triphenyl-4H-benzo[b][1,4]oxaphosphinin-4-ium bromide – dichloromethane (1/1), C27H22BrCl2OP
Authors: Liu Fen , Sun Longgen , Huang Haiyang
Published: April 2022

C27H22BrCl2OP, monoclinic, P21/c (no. 14), a = 9.0066(2) Å, b = 15.4924(4) Å, c = 18.5110(4) Å, β = 95.487(2)°, V = 2571.06(11) Å3, Z = 4, R

gt
(F) = 0.0509, wR

ref
(F
2) = 0.1494, T = 296 K.
Nietzsche’s Don Quixote between Zarathustra and Christ: Laughter, Ressentiment, and Transcendental Pain
Authors: Slama Paul
Published: April 2022

This article describes the role Don Quixote plays as a character and as a novel in Nietzsche’s work. Against the background of German romanticism’s reception of the novel, and by identifying the status of the novel, its characters, its author (in his duplicity) and its reader, I argue that Don Quixote plays a problematic role in Nietzsche’s writings: his character is at once the paradigm of the metaphysical individual caught in metaphysical illusions, the mocked receptacle of the ressentiment of readers and of Cervantes himself, but Don Quixote also represents the experience of a deep suffering (which I call “transcendental”), revealing the world outside the simulacra of metaphysics. This investigation leads us to draw parallels between Don Quixote and Christ, but also Zarathustra, and to rehabilitate a certain form of suffering, inherited from a certain understanding of Christ, in the work of Nietzsche.
A comparative experimental study on damping properties of epoxy nanocomposite beams reinforced with carbon nanotubes and graphene nanoplatelets
Authors: Pan Shengqi , Feng Jigang , Safaei Babak , Qin Zhaoye , Chu Fulei , Hui David
Published: April 2022

Carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) are extremely ideal nanofillers for applications in damping polymer. This work explores the damping behavior of polymer nanocomposite beams made of epoxy resin reinforced with CNTs and GNPs experimentally. Beam specimens for the vibration tests together with dynamic mechanical analysis (DMA) are fabricated with different weight ratios of CNTs and GNPs, upon which DMA and free vibration tests are conducted. Scanning electron microscope images are also obtained to check the dispersion of nanofillers in microscale. It is found that the first-order loss factor of composite beam specimens shows a rise of 41.1% at 0.4 wt% CNT content compared with that of pure epoxy, while the first-order loss factor of composite beam specimens with 0.025 wt% GNP content increases up by 128.9%. The maximum value of the first-order loss factor of nanocomposite beams with GNP reinforcement is 62.2% higher than that with CNTs.
A review of sludge production in South Africa municipal wastewater treatment plants, analysis of handling cost and potential minimization methods
Authors: Apollo Seth
Published: April 2022

The government of South Africa through the department of water and sanitation has installed numerous activated sludge systems in most of the municipal wastewater treatment plants (MWWTPs) to ensure adequate sanitation. However, secondary sludge generation and handling is a major challenge of the AS process. This work reviews the sludge production potential in selected regions in South Africa including Midvaal, Emfuleni and Lesedi municipalities. Further, the sludge handling cost and potential methods of sludge minimization are discussed. This study found that the selected MWWTPs discharge effluent volume of between 3 and 65 ML/day with average COD of about 350 mg/L leading to sludge production of between 5 and 23 tons/day with an estimated handling cost of €57,000 to €320,000 per year. Some of the technologies reviewed for sludge minimization to cut down plant operation cost include chemical oxidation using ozone and potassium ferrate (K2FeO4), application of oxic-settling-anaerobic (OSA) process, anaerobic/anoxic/oxic (AAO) combined with K2FeO4 oxidation side stream reactor (SSR), SANI® technology and use of anaerobic side stream reactor (ASSR) in the conventional activated sludge (AS) line.
Uranium adsorption – a review of progress from qualitative understanding to advanced model development
Authors: Payne Timothy E. , Waite T. David
Published: April 2022

Surface adsorption has a major influence on the environmental mobility of radionuclides, including uranium. Six decades ago, the description of the sorption process relied predominantly on simple descriptive parameters of solid–liquid partitioning (such as Kd values). There have since been numerous systematic investigations of the processes controlling U adsorption, including the affinity of U for different types of geologic materials, the influence of factors such as pH, the effects of complexing ligands, and the role of microorganisms. Mathematical descriptions of sorption processes have adopted various models – including sorption isotherms, surface complexation models and other types of modelling approaches, aided by advances in computational and analytical techniques. In recent years, mechanistic models have incorporated structural insights gained from spectroscopic techniques (such as EXAFS and TRLFS). Throughout the period, the nuclear waste community has sought to develop models for U sorption in complex systems associated with radioactive waste disposal, involving a range of mineral surfaces and incorporating numerous interactions and processes. To some extent, the ongoing questions concerning U adsorption can be considered as being common to many environmental metal contaminants. However, uranium is a unique and significant case, particularly for the radiochemical community, where the long-term behaviour of actinides is a central issue.
Discrete curvatures for planar curves based on Archimedes’ duality principle
Authors: Garanzha Vladimir A. , Kudryavtseva Liudmila N. , Makarov Dmitry A.
Published: April 2022

We introduce discrete curvatures for planar curves based on the construction of sequences of pairs of mutually dual polylines. For piecewise-regular curves consisting of a finite number of fragments of regular generalized spirals with definite (positive or negative) curvatures our discrete curvatures approximate the exact averaged curvature from below and from above. In order to derive these estimates one should provide a distance function allowing to compute the closest point on the curve for an arbitrary point on the plane.With refinement of the polylines, the averaged curvature over refined curve segments converges to the pointwise values of the curvature and, thus, we obtain a good and stable local approximation of the curvature. For the important engineering case when the curve is approximated only by the inscribed (primal) polyline and the exact distance function is not available, we provide a comparative analysis for several techniques allowing to build dual polylines and discrete curvatures and evaluate their ability to create lower and upper estimates for the averaged curvature.
The first round of presidential elections in France: results, comments and forecasts
Authors:   Institute of Europe of Russian Academy Sciences, Rubinskiy Yuri , Fedorov Sergey ,   Institute of Europe of Russian Academy Sciences
Published: April 2022

The Constitution of the Fifth Republic gives the President extraordinary authority in determining internal and foreign policy of the country. As a result, the presidential election in France is always a landmark, a resonating event. The first round of 2022 presidential election, held on April 10, highlighted the process of fragmentation of the French party and political landscape and its polarization. For the first time in political history of modern France, almost 2/3 votes were given to representatives of extreme right and extreme left political forces. In this paper the course of the presidential campaign and results of the first round of the election are analyzed. The potential results of the second round and its consequences are presented.
Lifestyle of University Students in the Czech Republic
Authors: Miklánková Ludmila , Rechtik Zdeněk
Published: April 2022

Data from various national and international surveys show that people in developed countries do not perform enough physical activity, even though it is an essential part of a healthy lifestyle. University students tend spending their free time inactively by watching TV, using IT-tools, including computer games (e-sports), etc. This research was part of the international project called: Research network for cooperation in the field of sports, recreation and health promotion (ID: EFOP-3.6.2-16-2017-00003). The project was aimed on leisure activities, lifestyle and sports habits of young people. The aim of research was exploration of some aspects of the lifestyle of students in study programs focused on teaching primary and pre-primary aged children. The research group consisted of 503 respondents. The research results indicate that Czech university students have relatively a lot of free time, which a huge part is spend inactively by watching TV or using the Internet on different devices. The main motivation for participating in sports are friends and the basis students received mostly in their families or from their friends. The research revealed some barriers for doing sports. Therefore, our recommendation is to focus on reducing the  barriers that students’ experience that may impact their participation on physical activity and give them a huge spectrum of opportunities and options how and where to provide sport activities, because the knowledge about healthy behavior and lifestyle is pretty solid, unlike in other researched countries.
Razlike u motivaciji za vježbanje između dječaka i djevojčica predškolske dobi
Authors: Alić Jelena
Published: April 2022

Motivacija (lat. „movere“ = kretati se) se definira kao sve ono što nas pokreće prema nekom cilju, sve ono što uvjetuje neko usmjereno djelovanje, te kao psihički proces zadovoljavanja potreba (Sindik, 2009). U okviru kinezioloških aktivnosti postoje dva tipa motivacije za vježbanje; unutarnja i vanjska motivacija. Unutarnja motivacija odnosi se na ponašanje koje je pokrenuto određenim unutarnjim porivima i nagradama te proizlazi iz potrebe pojedinca jer ga čini zadovoljnim za razliku od vanjske motivacije koja podrazumijeva ponašanje s ciljem postizanja određene nagrade ili izbjegavanja kazne (Coon, 2010). Cilj je istraživanja utvrditi motivacijsku strukturu za vježbanje djece predškolske dobi te utvrditi postoje li razlike s obzirom na spol ispitanika. Uzorak ispitanika obuhvatio je 74 djece predškolske dobi, dječaka i djevojčica, uzrasta između 5 i 7 godina (N=74, Nž =38, Nm=36). Individualne razlike u motivaciji za tjelovježbu djece predškolske dobi procijenjene su prilagođenom verzijom Upitnika motivacije za vježbanje – EMI 2 (Vlašić i sur., 2002). Rezultati istraživanja ukazuju kako je dominantan motiv koji djecu potiče na vježbanje zdravlje (AS=4.47), a potom uživanje (AS=4.28) i druženje s prijateljima (AS=4.27). To ukazuje kako su djeca više motivirana unutarnjim porivima nego vanjskim što je ujedno i poželjan motivacijski obrazac. Uz navedeno, utvrđene su statistički značajne razlike u motivima za vježbanje s obzirom na spol ispitanika. Dječaci su, u većoj mjeri od djevojčica, motivirani za tjelesnu aktivnost zbog poboljšanja tjelesnog izgleda (p=0.004) i zbog rezultata/ pobjeđivanja (p=0.017) koji se ostvaruje u kontekstu provedbe kinezioloških aktivnosti. Ova saznanja mogu se koristiti kod organizacije tjelesnih aktivnosti s ciljem povećanja dječje motivacije i zadržavanja djeteta u određenom sportu ili tjelesnoj aktivnosti.
Odgojiteljska percepcija roditeljske manipulacije u odnosu s djecom i odgojiteljima tijekom i nakon razvoda
Authors: Hrgović Martina
Published: April 2022

Manipulacija djecom tijekom razvoda i nakon razvoda roditelja uključuje niz ponašanja kojima jedan roditelj nastoji narušiti odnos djeteta s drugim roditeljem. Ta ponašanja otežavaju prilagodbu djeteta na razvod i mogu ostaviti dugotrajne negativne efekte na djetetov razvoj i odnos s roditeljima. Istraživanja ovog ponašanja još uvijek nisu mnogobrojna, posebice izvan obiteljskog konteksta. Naime, pojedinci koji rade u odgojnim i odgojno-obrazovnim institucijama, i koji su u svakodnevnoj interakciji s djecom i brinu za njihovu dobrobit, također bi trebali znati prepoznati ovakva ponašanja od strane roditelja kako bi mogli postupati u skladu s najboljim interesom djeteta. Cilj ovog rada bio je ispitati imaju li odgojitelji/ice iskustva s ponašanjima roditelja koja se mogu okarakterizirati kao roditeljska manipulacija tijekom razvoda i nakon razvoda, u kojoj mjeri takva ponašanja prepoznaju, s njima se susreću i što poduzimaju te koje poteškoće zamjećuju kod djece čiji su roditelji skloni tim ponašanjima. U sklopu ovog istraživanja konstruirana je i provjerena skala roditeljskih manipulativnih ponašanja prema djeci i odgojiteljima/icama. U istraživanju je sudjelovalo 166 odgojiteljica, a rezultati su pokazali da se većina odgojiteljica susrela s djecom roditelja u postupku razvoda te da se smatraju dovoljno educiranima za prepoznavanjeroditeljskih i dječjih ponašanja iako se nisu na edukacijama informirale o tome, što se pokazalo kao nedostatak. Najčešća manipulativna ponašanja, koja susreću u svome radu, potvrđena su i u literaturi. Dobiveni rezultati također su potvrdili pretpostavljenu strukturu skale roditeljskih manipulativnih ponašanja.