bluuebunny/crossref_metadata_2025 huggingface dataset:
INTERRELATION OF INDIVIDUAL PAPER-FORMING PROPERTIES AND THE DYNAMIC VISCOSITY COEFFICIENT DURING THE GRINDING OF THE FIBROUS MASS
Authors: Alashkevich Yuriy Davydovich , Fomkina Anna Aleksandrovna , Karelina Aleksandra Aleksandrovna
Published: December 2022

The refining process is associated with the movement of large masses of fibrous suspensions in the working bodies of refining machines, which affects both the refining process itself and energy consumption when moving the fibrous suspension. In this regard, the efficiency of refining equipment can be ensured on the basis of knowledge of the hydrodynamic processes that occur during the interaction of the working bodies of refining equipment with a fibrous suspension.

During the flow of fibrous suspensions, the basic rheological feature is their viscosity, which makes it possible to judge the internal forces acting in the flow. This is especially important for the bladeless refining method using the “jet-barrier” installation.

In order to most fully judge the direction of the refining process (in the direction of the transverse shortening of the fibers or in the direction of their longitudinal fibrillation), it is necessary to control the paper-forming properties of the fibrous mass and the physical and mechanical properties of the castings.

The publication presents an analysis of the influence of the paper-forming properties of the fibrous mass on the quality of its refining, it is advisable to find the dependence of these indicators on the rheological features of the fibrous suspension flow in the refining zone, that is, to determine the relationship of the paper-forming properties of the fibrous mass with the dynamic viscosity coefficient during the flow of the fibrous suspension in the refining zone.
HYDROGENATION OF ABIES WOOD ETHANOL-LIGNIN WITH HYDROGEN IN ETHANOL MEDIUM IN THE PRESENCE OF NiCuMo/SiO2 CATALYST
Authors: Kuznetsov Boris Nikolayevich , Miroshnikova Angelina Viktorovna , Kazachenko Aleksandr Sergeyevich , Baryshnikov Sergey Viktorovich , Malyar Yuriy Nikolayevich , Skripnikov Andrey Mikhaylovich , Fetisova Ol'ga Yur'yevna , Yakovlev Vadim Anatol'yevich , Taran Oksana Pavlovna
Published: December 2022

In the development of studies on the catalytic conversion of lignin to liquid hydrocarbons, the effect of the bifunctional NiCuMo/SiO2 catalyst on the yield and composition of abies wood ethanol-lignin hydrogenation products in ethanol medium at a temperature of 250 °C was established. According to thermogravimetric analysis data the main thermal decomposition of abies wood ethanol-lignin occurs in the range from 260 to 600 °C with the maximum rate of degradation (3.9%/min) at 398.3 °C. The catalyst increases the yield of liquid products from 75.0 to 88.0 wt%, and reduces the yield of solid residue from 14.0 to 0.6 wt%. The total yield of phenolic compounds of non-catalytic hydrogenation does not exceed 4.5 wt%. The bifunctional nickel-containing catalyst increases by two times (up to 9.2 wt.%) the yield of liquid phenolic products, among which dimers and 4-propyl guaiacol predominate. The molecular weight distribution of the liquid products of the catalytic hydrogenation of abies ethanol-lignin shifts to the low molecular weight region due to the increase in the content of dimeric and monomeric phenolic compounds in liquid products. The obtained methoxyphenols can be used as components of epoxy resins, polycarbonates, fuel additives, and in other areas.
OBTAINING, PROPERTIES AND GROWTH-STIMULATING ACTIVITY OF GRANULAR NITROGEN-CONTAINING ORGANO-MINERAL FERTILIZERS BASED ON ASPEN SAWDUST
Authors: Belash Mikhail Yur'yevich , Veprikova Yevgeniya Vladimirovna , Sobolev Anatoliy Alekseyevich , Romanov Vasiliy Nikolayevich , Kozulina Natal'ya Stanislavovna , Snytkova Tat'yana Anatol'yevna , Vasilenko Al'bina Vladimirovna , Mikhaylets Mikhail Arkad'yevich , Lipshin Aleksey Gennad'yevich , Taran Oksana Pavlovna
Published: December 2022

A method for preparation of nitrogen-containing fertilizers based on aspen sawdust, including their impregnation with a water solution of ammonium nitrate and subsequent granulation, is proposed. The resulting fertilizers contain 15.42–16.07 wt.% nitrogen. The physicochemical properties of sawdust and fertilizers based on them are studied. It was shown that the pre-treatment of aspen sawdust by 1.0 wt.%. water solution of NaOH leads to the development of their porous structure, a decrease in the content of phenolic substances and makes it possible to obtain denser fertilizer granules. As a result of a field test on growing wheat of the Krasnoyarskaya 12 variety, a growth-stimulating effect of nitrogen-containing granular fertilizers based on aspen sawdust was revealed - the crop yield increased by 0.4–0.9 t/ha compared to the unfertilized background. A more effective effect on the yield of wheat of granulated nitrogen-containing fertilizer based on sawdust after their treatment with 1.0 wt.% water NaOH solution was established – according to this indicator, the achieved effect is 0.5 t/ha more compared to fertilizer based on the original aspen sawdust.
INDIRECT ELECTROCATALYTIC OXIDATION OF STARCH BY REACTIVE OXYGEN SPECIES IN SITU GENER-ATED ON Pb/PbO2 ANODE AND BORON-DOPED DIAMOND ELECTRODE IN AQUEOUS ELECTROLYTES
Authors: Kornienko Galina Vasil'yevna , Kapaeva Svetlana Nikolayevna , Kornienko Vasiliy Leont'yevich , Skripnikov Andrey Mikhaylovich , Taran Oksana Pavlovna
Published: December 2022

The indirect electrocatalytic oxidation of starch by reactive oxygen species (ROS) generated in situ on lead dioxide anodes and a boron-doped diamond electrode in an acidic aqueous electrolyte has been studied. The influence of the current density, concentration and state of aggregation of the reagent, the scheme of introduction of ROS on the kinetics and yields of the product of indirect oxidation of starch dialdehyde karazmal has been established. The optimal conditions for obtaining oxidized starch were determined: anode – Pb/PbO2, current density – 25 mA/cm-2, electrolyte pH 2–3, electrolysis time – 80 min, 25 °C. Starch oxidation products were analyzed by the following methods: spectrophotometry after deratization with dinitrophenylidrazine, gas chromatography-mass spectrometry after hydrolysis and silylation, and IR spectroscopy. Glucose tautomers, as well as ethylene glycol oligomers, were found in the hydrolyzates of the reaction products by GCMS, indicating the breaking of C-C bonds in the monosaccharide units during the oxidation process.
OPTIMIZATION OF PECTIN EXTRACTION FROM THE BARK OF SIBERIAN FIR (ABIES SIBÍRICA), CORRUPTED BY USSURI POLYGRAPH (POLYGRAPHUS PROXIMUS)
Authors: Ionin Vladislav Aleksandrovich , Malyar Yuriy Nikolayevich , Zimonin Dmitriy Valer'yevich , Borovkova Valentina Sergeyevna , Zaharchenko Anna Vasil'yevna , Litovka Yuliya Aleksandrovna , Taran Oksana Pavlovna , Pavlov Igor' Nikolayevich
Published: December 2022

Species of Abies trees are considered susceptible to the effects of diseases and pests. As a result of the complex biotic impact of the Ussuri Polygraph (Polygraphus proximus Blandford) the area of potential drying of Siberian fir (Abies sibirica Ledeb) stands up to 10 million hectares. Trees corrupted by root pathogens are a center of desiccation, from where pathological decay spreads, so also there arise an urgent issue of disposal of corrupted bark and wood waste. A promising solution to this problem is the extractive processing of wood-bark wastes aimed to obtain a wide range of high-valued substances. Fractions of resinous substances, tannins and pectins were isolated from the corrupted A. sibirica bark using the sequential extraction method. The optimization of the process of pectin extraction - one of the most valuable secondary extractive components was carried out. The optimal experimental conditions were established with the highest yield of pectins up to 8.4 wt.%, which is achieved by treating the A. sibirica bark, corrupted by P. proximus, with a HCl solution at pH = 1.71 and the process duration 48 min. The isolated extractive substances (tannins, pectins) from the A. sibirica bark characterized by IR spectroscopy and gel permeation chromatography. The antioxidant activity of tannins and pectins studied using compounds imitated free radicals (1,1-diphenyl-2-picrylhydrazyl), which amounted to 97% and 89%, respectively.
A mediação de informações contra a pandemia da COVID-19 via netnografia. A gente dentro da Rede Piauí Sem Covid no Instagram
Authors: Berti Orlando Maurício de Carvalho , Cunha Yasmim Hellen
Published: December 2022

Reflete-se questões netnográficas encontradas na mediação informacionais contra a pandemia de COVID-19 utilizando-se as ações dentro da Rede Piauí Sem Covid no Instagram (@piauisemcovid). É resultado de uma pesquisa de campo virtual, experimental e informacional realizada entre março de 2020 e agosto de 2021 (que continua em curso dado as questões da pandemia). Em recorte de 17 meses, objetiva-se entender, vivenciar, socializar e compartilhar informações relacionadas ao fenômeno, enveredando pelas rotinas produtivas e experimentações de pensar, construir, agir, refletir e trazer respostas sobre a pandemia. Nota-se que o jornalista contemporâneo precisa experimentar mais linguagens, vivenciar novos momentos e estar em consonância com as questões não só das mediações informacionais, mas das próprias rotinas sociais a seu redor.
A opinião pública de Walter Lippmann: o papel da imprensa na sociedade moderna
Authors: Daros Otávio
Published: December 2022

Completando um século, Opinião pública (1922) mantém-se como obra referencial no campo acadêmico da comunicação e do jornalismo. Empreendemos, neste artigo, estudo de caráter bibliográfico para revisar e analisar as contribuições dadas por Walter Lippmann. Quatro linhas de estudo são desenvolvidas por nós: 1º Lippmann como jornalista e seu legado para as práticas profissionais, a exemplo do ideal de objetividade; 2º como intelectual liberal engajado na reflexão crítica da dinâmica democrática, opondo-se aos regimes totalitários; 3º como pensador do papel da imprensa na sociedade moderna; e 4º como contribuidor para as teorias do jornalismo.
Determinants of Mentoring in the Context of Human Capital Development. Modeling the Effectiveness of the Mentoring Processes in Business Tourism Organization
Authors: BARAN Małgorzata
Published: December 2022

The aim of the study was to examine the determinants of the mentoring processes from the perspective of HR managers from companies in different branch of the tourism industry and the impact of these conditions on the effects of mentoring related to human capital development. The characteristics of mentoring’ determinants were singled out in order to build a model of mentoring effectiveness which could be applied for increase the quality of HR in tourism activities. A group of four hypotheses were formulated on the basis of the identified cognitive gaps. A qualitative study was conducted with the use of triangulation procedure. The study indicates that the organizational, motivational, and relational determinants as well as the determinants related to HRM have a significant impact on the level of the effects of mentoring related to employee development in companies. The statistically significant interactions were obtained between the number of meetings per edition within the mentoring process and the level of institutional and relational determinants, and between the length of mentoring used in the company and the level of determinants related to human resource management and motivational determinants.
Tourism and Protected Areas: The Guadiana Valley Natural Park, Portugal
Authors: FIGUEIRA Victor , ROLHA João , SOUSA Bruno , VAREIRO Laurentina
Published: December 2022

Sustainability is a topic that is currently being discussed and constantly adapting, since it is related not only to an ecologically correct posture and strategy but also economically viable and socially equitable. The present manuscript intends to understand and analyze tourism and protected areas in Portugal, namely the case of the Guadiana Valley Natural Park (Portugal). This paper presents theoretical considerations that aim to understand how “protected areas” can become a destination for future sustainable tourism trips. In the end, the limitations of the study and guidelines for future research will be presented.
The Impact of Tourism Management on Firm Performance: Chiang Mai Tourism Industry Perspective
Authors: JANGKRAJARNG Varattaya , CHERNBUMROONG Sainatee , CHERAPANUKORN Vimolboon
Published: December 2022

Due to the important of tourism industry, the entrepreneurs in tourism supply chain should concern about information sharing in order to increase service quality and the firm performance. However, there is limited study focusing on the impact of information sharing factor toward firm performance especially in tourism sector. This research aims to examined the consistency of structural equation modelling of an impact of information sharing on firm performance for tourism industry. Questionnaires were distributed to 280 participants in tourism industry in Chiang Mai, Thailand. Data were analysed by the analysis of CFA and SEM via LISREL 8.54. The structural equation modelling in information sharing and the performance of tourism industry in Chiang Mai were consistent with empirical data (χ²/df = 2.10, GFI = 0.88, AGFI = 0.98, RMSEA = 0.03, PCLOSE = 0.98, NFI = 0.98, IFI = 0.99 and CFI = 0.97). The SEM results presents that information sharing factor is positively relationship with tourism supply chain, service quality and firm performance variables. Also, Service quality is significant positive impact on Firm performance through information sharing at 0.01. Therefore, tourism supply chain and service quality with considering on information sharing can lead to the increasing of the firm performance.
Issues of Attracting Foreign Investment in the Tourism Industry of Kazakhstan
Authors: SADUOV Askar , MUKANOV Beibut , MAZHITOVA Saule , TOLEUULY Almas , GELMANOVA Zoya , KAZBEKOV Turlybek
Published: December 2022

The purpose of the study is to analyze the factors that affecting foreign flows in the tourism sector, which allows to solve several problems associated with both increasing the level of satisfaction of cultural needs of the population, and the creation of conditions for the development of forms of entrepreneurship as the main actors in the tourism industry. In this regard, the issues of attracting foreign investment in the tourism industry are in line with the use of digital platforms as the main channels of interaction with customers and transactions, as well as a means of creating investment business models for the Kazakhstan tourism industry.
Faktor Determinan dalam Kepatuhan Penggunaan APD Tenaga Keperawatan Gigi Rumah Sakit selama Pandemi
Authors: Ridarsyah Laily Maghfira Noor , Sriatmi Ayun , Susanto Henry Setyawan
Published: December 2022

Hospitals are complex, expert and capital intensive health care institutions. During the Covid-19 pandemic, many cases of health workers infected with Covid-19 were described by data on the death rates of health workers in various countries. The use of Personal Protective Equipment (PPE) for nurses is very influential because it can prevent exposure to infectious diseases. the risk of contracting the disease in nurses will increase.The purpose of this study was to analyze factors related to compliance with the use of PPE for dental workers in hospitals during the pandemic.This is a quantitative research with a cross-sectional approach. The target population in this study were all 65 medical personnel at RSIGM Sultan Agung Semarang. The sampling technique used in the study was the total population.The results showed that the information provided, leadership and perceived benefits will have a positive effect on dentist compliance in the use of PPE, while imbalance, and the environment have no positive effect on dentist compliance in the use of  PPE. Information provided, imbalance, leadership, environment and perceived benefits together have a relationship with dentist compliance in using personal protective equipment.Doctors and dental nurses need to maintain their mindset that they will feel happy if the patient and himself are protected from the Covid-19 virus. It is necessary to know that the use of PPE does not hamper the services provided because PPE is only an additional tool for personal and patient protection against the Covid-19 virus.
Somatic embryogenesis and plant regeneration from radicles of olive (Olea europaea ‘Chemlal’) zygotic embryos
Authors: TITOUH Khayreddine , HADJ-MOUSSA Khadidja , BOUFIS Nazim , KHELIFI Lakhdar
Published: December 2022

Olive improvement by biotechnological tools such as genetic transformation requires an efficient in vitro regeneration system. Somatic embryogenesis seems the most suitable process. Our work describes for the first time the regeneration of whole plants in the main olive cultivar in Algeria ‘Chemlal’ via somatic embryogenesis induced from radicles of mature zygotic embryos. The obtained results showed that the establishment of a competent embryogenic culture is highly influenced by the chemical composition of the calli induction and maintenance media as well as addition of growth regulators. More than 10 and 13 % of nodular calli were obtained after callogenesis respectively on MS and OMc solid media containing IBA and zeatin followed by transfer to the same media without zeatin and a reduced concentration of auxin, while embryogenesis rates of 3.3 and 6.7 % were obtained respectively with IAA on MS medium and NAA on both tested media. However, no embryogenesis was observed with 2, 4-D or control which induced less callogenesis. Subsequently, an ECO medium with IBA, zeatin and BA particularly in liquid culture, allows better calli proliferation and embryogenic expression compared to OM and MS media. Finally, matured somatic embryos germinate quickly on a solid OM basal medium and generate normal well-developed plantlets easily acclimatized to natural conditions.
Problem sztuki naskalnej w Polsce
Authors: Pankiewicz Marek
Published: December 2022

It is assumed that occurrence of Palaeolithic cave art in Central and Eastern Europe is not typical for this part of the continent, as it is difficult to consider its few examples as a result of solely poor preservation. Looking into this issue from the perspective of region of modern Poland, several questions arise: Why is it registered on so few sites, and is it truly an atypical phenomenon for the region? In problem discussion, there are three key elements: research interest, state of preservation, and competences needed for making a discovery. These elements, covered in following paper, explicitly suggest that in terms of Polish cave sites, we do not possess enough information to conclude which type of occurrence we are dealing with.
Popularyzacja archeologii na przykładzie rezerwatu archeologicznego w Kaliszu-Zawodziu
Authors: Przepiórka Paulina
Published: December 2022

The subject of this article is the analysis of the activities conducted by the Archaeological Reserve in Kalisz-Zawodzie and its role in education and popularization of archaeology. It is based on the results of conducted quantitative and qualitative research surveys among visitors to the reserve and residents of Kalisz, including students of one of the primary schools, and interviews with experts. On their basis, the profile of visitors, the motivation they were guided by and their perception of the reserve and its offer were determined. In order to improve the image of the reserve and develop an appropriate offer, an original program and organizational concept for the discussed facility was created on the basis of the collected information.
„Fortece na bagnach”. Pierwsze interdyscyplinarne badania stanowiska z późnej epoki brązu w Jatwiezi Dużej (Polska północno-wschodnia)
Authors: Żurek Krzysztof , Wawrusiewicz Adam , Kalicki Tomasz , Niebieszczański Jakub , Piasecki Aleksander , Bahyrycz Cezary
Published: December 2022

The phenomenon of functioning of fortified settlements of late Bronze Age and early Iron Age in northern Podlasie (North-Eastern Poland) is a relatively new research problem, on which the knowledge is a result of research conducted in the last several years. The aim of the paper is to present the preliminary results of the interdisciplinary research of the Jatwieź Duża site (district of Suchowola, Sokółka County, Podlaskie voivodeship). The research area is located in the Podlaskie voivodeship in the Brzozówka valley (left tributary of Biebrza River), in the Biebrza Basin. The described site is characterized by an oval form of anthropogenic origin, which indicates a permanent or temporary settlement in the prehistory. This object is one of many similar forms currently being discovered in Podlasie region.This form is build by two distinct trench rings separated by earth embankment and a central flat elevation with a diameter of about 60 m. A geophysical survey (geomagnetic and GPR) was carried out. They registered a series of anomalies, forming two rings which relate to the relief of the site. Archaeological excavation was made in the north-west direction. It was 25 m long and 2 m wide, crossing the embankment and both trenches.. In the course of archaeological excavations, ten objects were discovered with fragments of ceramics and a few flint tools. Preliminary results of archaeological research indicate that this structure was use by the communities of Urnfield culture in the Bronze Age.
Eugeniusz Tomczak, Anita Szczepanek, Paweł Jarosz, Gogolin-Strzebniów, stanowisko 12. Cmentarzysko kultury łużyckiej na Wyżynie Śląskiej. Seria: Ocalone Dziedzictwo Archeologiczne, t. 11 (red. K. Dzięgielewski)
Authors: Żychlińska Justyna
Published: December 2022

Eugeniusz Tomczak, Anita Szczepanek, Paweł Jarosz, Gogolin-Strzebniów, stanowisko 12. Cmentarzysko kultury łużyckiej na Wyżynie Śląskiej.Seria: Ocalone Dziedzictwo Archeologiczne, t. 11 (red. K. Dzięgielewski), Wydawnictwo: Stowarzyszenie Archeologów Terenowych „Stater”,  Wydawnictwo Profil-Archeo, Pękowice 2021
Recenzowana publikacja wydana nakładem wydawnictw Stowarzyszenia Archeologów Terenowych „Stater” oraz Profil-Archeo jest jedną z trzech, poza Trestą Rządową i Radomiem-Wośnikami, monografii poświęconych nekropolom ludności kultury łużyckiej, jakie do tej pory ukazały się w serii Ocalone Dziedzictwo Archeologiczne. Książka, licząca 147 stron formatu A4 wraz z 97 rycinami oraz 5 tabelami, składa się z 11 części, z czego 4 ostatnie są analizami specjalistycznymi.
A novel method to control stress distribution and machining-induced deformation for thin-walled metallic parts
Authors: Bai Qian , Song Dehua , Yang Wenmei , Chen Ziliang , Tang Jingang
Published: December 2022

In the precision machining of thin-walled planar components, the initial residual stress of the workpiece could lead to subsequent deformation after machining, which influences the geometrical accuracy of the final parts. Generally, conventional methods, such as stress-relief annealing and vibration stress relief, are implemented to reduce the magnitude of the residual stress. However, the distribution of the residual stress, which is more significant to the machining accuracy for thin-walled parts, is difficult to be adjusted in these methods. This article proposes a novel method to control the stress distribution and magnitude during the manufacturing process and thus reduce the machining-induced deformation for the thin-walled planar part of pure copper. In this method, symmetrical distribution of residual stress is introduced by multi-pass rolling, quenching, stress-relief annealing, and turnover turning. The stress field and deformation of the part are predicted by finite element modeling in the whole process. The part deformation after machining is verified by the experiments. The results show that compared with the traditional stress-relief annealing, this novel method could reduce the part deformation after machining and improve the geometrical accuracy for thin-walled parts.
Relationship between spiritual well-being and spiritual intelligence with mental health in students
Authors: Hosseinbor Mohsen , Jadgal Mohammad Saeed , Kordsalarzehi Fatemeh
Published: December 2022

Objectives

To investigate the relationship between spiritual well-being and spiritual intelligence with mental health in students.

Methods

This descriptive-analytical study was conducted among 277 students (110 boys and 167 girls) through convenience sampling. The data collection instruments in this study included a spiritual well-being questionnaire, King’s spiritual intelligence questionnaire, and Goldberg’s general health questionnaire. After being entered into SPSS statistical software, the data were analyzed using descriptive and analytical.

Results

The results of multivariate regression analysis using the step-by-step method showed that spiritual well-being predicts 14% of the variance of students’ mental health. Also, on the scale of spiritual well-being, the two dimensions of communication with oneself and communication with others were predictors for the social functioning dimension of mental health. Also, among the subscales of spiritual well-being, the subscale of connection with God had an inverse and significant relationship with anxiety and physical health (p<0.05), and an inverse and significant relationship were observed between the subscale of connection with self with anxiety and depression (p<0.05).

Conclusions

The results of the present study confirm that spiritual well-being and spiritual intelligence affect mental health and its dimensions.
Simulative study on integrated optical multimode waveguides with guided beams based on the system standardization of elements
Authors: Rashed Ahmed Nabih Zaki , Jahan Kausar , Mohammad Ali Baig , Ahammad Shaik Hasane , Hossain Md. Amzad , Fawzy Farid Anwar
Published: December 2022

This study has outlined simulative study on integrated optical multimode waveguides with guided beams based on the system standardization of elements. Deflection of a cantilever are clarified with a point force at the free end, due to the distributed weight at the beam, with a mass at the free end, and at the free end under acceleration. The bending of a double clamped beam under its distributed weight, deflection with the central mass double clamped beam under its weight, the buckling of a double clamped beam due to a compressive stress, out of plane deflection (OPD) of a bent beam suspension, OPD of a folded beam suspension, and OPD of a serpentine beam suspension are also clarified and reviewed. Dependence of cross section of beam on torsion constant is outlined. The stiffness ratio of lateral to vertical motion of hammock suspension is also clarified. The design of a crab-leg suspension and the dependence of the stiffness on thigh section of the crab leg flexure and the design of a folded flexure suspension and the dependence of stiffness on ratio of column beam lengths are also reported.
How does COVID-19 affect maternal and neonatal outcomes?
Authors: Koç Esin , Dilli Dilek
Published: December 2022

Objectives

In this article, we aimed to evaluate the most recent information on the impact of the COVID-19 pandemic on the health of mothers and their babies.

Methods

We conducted a literature search by utilizing online sources. Scientific papers that were written in English on the effects of COVID-19 on both mother and their newborn were assessed.

Results

COVID-19 can be fatal, especially in pregnant women with accompanying chronic diseases. The timing and mode of delivery should be decided by the status of the mother and fetus instead of SARS-CoV-2 positivity in pregnant women. At the nursery, routine separation of SARS-CoV-2 positive mothers and their infants is not recommended. However, it is important to take preventive measures to reduce the risk of transmission. The advantages of breastfeeding seem to outweigh the potential dangers of viral transmission. Neonatal COVID-19 infections may cause different clinical pictures from asymptomatic infections to life-threatening diseases. International health authorities specifically recommend that pregnant and lactating women get vaccinated to diminish the risk of transmission of the virus to the mother and fetus, not giving preference to a certain vaccine. It is prudent to apply universal screening only in populations with a high prevalence of COVID-19.

Conclusions

Healthcare professionals should carefully manage the perinatal period during the COVID-19 outbreak, using the most up-to-date information to protect and promote maternal and newborn health. Further scientific studies are needed to clarify the early and long-term effects of the COVID-19 pandemic on maternal-neonatal morbidity and mortality.
Weak nonlinear analysis of nanofluid convection with g-jitter using the Ginzburg--Landau model
Authors: Kiran Palle , Manjula Sivaraj Hajjiurge , Roslan Rozaini
Published: December 2022

Nanofluid has emerged as a remarkable heat and mass transfer fluid due to its thermal characteristics. Despite this, continuing research is required to address problems in real applications and offer a solution for controlling transfer analysis. Therefore, in this study, the authors intend to model (Ginzburg–Landau equation) and analyze the two-dimensional nanofluid convection with gravity modulation. The perturbed analysis is adapted to convert the leading equations into Ginzburg–Landau equation. Lower amplitude (

δ

\delta

values from 0 to 0.5) values are taken since they influence transfer analysis. The values of Pr are considered as 0 to 2 to retain the local acceleration term in the system of equations. A lower amount of frequency of modulation (

Ω

\Omega

values from 0 to 70) is sufficient to enhance the heat and mass transfer rates. It is found that g-jitter and concentration Rayleigh numbers control the stability of the system. The Prandtl number and the amplitude of modulation enhance nano-heat and nano-mass transfer. This shows a destabilizing effect of modulation on nano-convection. Also the nano-Rayleigh number Rn has a dual nature on the kinetic energy transfer for positive and negative signs. A comparison is made between modulated and unmodulated systems, and it is found that the modulated systems influences the stability problem than the unmodulated systems. Finally, it is found that g-jitter influences effectively to regulate the transport process in the layer.
TiNiSi-type YbIrMg with trivalent ytterbium
Authors: Reimann Maximilian Kai , Pöttgen Rainer
Published: December 2022

YbIrMg was obtained from a reaction of the elements in an equiatomic ratio in a sealed tantalum ampoule in a muffle furnace. The TiNiSi-type structure of YbIrMg was refined from single crystal X-ray diffractometer data: Pnma, a = 695.72(3), b = 405.84(6), c = 840.57(7) pm, wR = 0.0431, 511 F
2 values and 21 variables. A small degree of Mg/Ir mixing within the three-dimensional [IrMg] network leads to the refined composition YbIr1.024(4)Mg0.976(4). The course of the cell volume in the REIrMg series (Iandelli plot) points to trivalent ytterbium in YbIrMg.
Vilnius's Tilto Street: Legends and archaeological data
Authors: Kaplūnaitė Irma , Jonaitis Rytis
Published: December 2022

Since the 15th century, present-day Tilto Street and the surrounding area in Vilnius have long been an integral part of the suburb of Łukiszki, which has experienced many changes over several centuries. It was the west road leading to the castles, the site of the camp of the late 14th-century Crusader army that attacked Vilnius, and was close to the site of the Radziwiłł Palace of the late 15th–16th century. This wet, swampy northeastern part of Łukiszki was not very hospitable for habitation, its significance coming from its natural situation and topography, i.e. its location near the confluence of the Neris and Vilnia Rivers, as well as its roads leading west. In addition, a hypothesis has been raised in the historiography that it may have been part of the Swintoroha Valley, a legendary centre of pagan worship. This entity, its likely location, and even its very existence raises many questions, which, in the absence of written sources, archaeological data can help to answer. Recent decades have seen an increase in archaeological research in this part of the city. Particularly useful has been the project in the vicinity of the former Radziwiłł Palace, in the northeast of the suburb, which yielded information that provided a very good reflection of the period when this area was an integral part of the Radziwiłł estate and supplemented and corrected the knowledge historical sources have provided about the development of Tilto Street and the surrounding area, which is especially important in recreating the area’s earliest history, on which written sources have shed little light.
Urban development of Kėdainiai by the Kiszka and Radziwiłł families
Authors: Juknevičius Algirdas
Published: December 2022

This article delves into the subject of urban development on the right bank of the Nevėžis River in Kėdainiai, with a focus on the formation of urban space. Established in the mid-17th century largely by the owners of Kėdainiai, the Kiszka noblemen and Radziwiłł dukes, the urban planning remained unchanged until the first half of the 20th century. The article presents archaeological data and historical sources revealing the main features of urban development on the right bank of the Nevėžis River, the formation of market squares, and the structuring of plots.
Investigating syphilis in early modern Estonia using skeletal archaeological evidence from Tartu
Authors: Arney James , Arney David
Published: December 2022

Presented here are results of analyses of excavated skeletal material from the early modern period in Tartu, Estonia, for evidence of syphilis. Our understanding of the incidence of syphilis in Estonia, and the causes of its spread, are discussed. All of the skeletal samples that were positively identified for syphilis included evidence of bone lesions on the cranium. Percentages of remains with signs indicative of syphilis were found at a rate of 0.50%, which accords with a figure of 0.77% from Britain for the same period. Evidence presented suggests that syphilis was a problem not only in the metropolitan area of Tallinn, but also in the less populous cities of Estonia. It is concluded, given that the excavation sites represent different dates from the period, that syphilis was a significant health problem in early modern Tartu.
Hidden landscapes of the Earliest Iron Age: Excavations at Kakliniškės 7 reveal an overlooked settlement phase in southern Lithuania
Authors: Vengalis Rokas , Minkevičius Karolis , Valančius Mantas , Piličiauskas Gytis
Published: December 2022

The article presents the data from Kakliniškės 7 settlement site, discovered and excavated in 2020 during the construction of the gas pipeline. The rich and representative collection of pottery and archaeobotanical material gathered in the site have provided valuable data on the hitherto unknown 4th century BC in Lithuania. Pottery such as that found at Kakliniškės 7 has not previously been identified, and is therefore referred to here as Kakliniškės Ware. These are pots with slightly curved walls, rounded shoulders and vertical rims, featuring a striated surface topped with an additional coarse layer. The defined attributes of this new type of pottery have allowed the identification of the same ware in other settlement and burial sites in southeastern Lithuania and the Trans-Nemunas region. All of these settlement sites share some common features; most likely they are the sites of short-lived farmsteads belonging to highly dispersed settlements. Such data allow us to hypothesise a hitherto unidentified cultural group that briefly spread in southern Lithuania in the 4th century BC. This challenges the prevailing model of a static cultural development and a homogeneous material culture in the 1st millennium BC in all of eastern Lithuania. Our data show that the cultural situation here was much more dynamic than previously thought.
Causes of Death in the Lithuanian Armed Forces, 1919–1940
Authors: Jokubauskas Vytautas
Published: December 2022

Between the First World War and the Second World War, approximately 280 thousand men served in the Lithuanian armed forces. This is a significant figure for a country that only had a population of two to 2.5 million. Even though the Lithuanian armed forces were only involved in active military operations and low-intensity fighting from 1919 to 1923, servicemen died during the entire period up to 1940. The numbers of deaths during the Wars of Independence are well known; however, the causes of death in the Lithuanian armed forces, both from 1919 to 1920 and in later years, have not been investigated in great depth. We understand that one cause of death in an active army is active combat. In the study of war, deaths in action are further classified into deaths caused by artillery fire, machine gun and rifle fire, bayonets, etc. This allows scholars to determine the effectiveness of weapons systems and tactical elements used on the battlefield. However, the focus of this article is the causes of soldiers’ deaths that are not directly combat related. In the first section, I discuss causes of death in the Lithuanian armed forces during periods of war and peace, and provide a host of examples, which include deaths caused by disease, accidents, homicide and suicide. In the last section, I present the results of quantitative analysis. The quantitative analysis is a case study of a single regiment that demonstrates the predominant causes of death from 1919 to 1940, with a separate analysis of causes of death for the period 1919 to 1920.
Kalbinis mandagumas nekilnojamojo turto skelbimuose: prašymai
Authors: Aleksaitė Agnė
Published: December 2022

The article deals with written Lithuanian language requests found on Aruodas.lt, the main portal for real estate (RE) classifieds (other specialised or general classifieds portals, such as domoplius.lt, kampas.lt, skelbiu.lt, were omitted because they contain a relatively small number of ads; and besides, many of their RE ads overlap with the classifieds published on Aruodas.lt) and the politeness of such requests. The empirical material, consisting of 1,000 speech acts, was gathered between 6 April 2020 and 30 May 2021. The study aims to determine the types of applicable strategies according to the degree of the directness of the requests, examine internal and external modifications of request cores, and ultimately identify the main forms of addresses.
ŠVEDIJOS STUDENTŲ ALKOHOLIO VARTOJIMO TRADICIJOS XXI A. PRADŽIOJE
Authors: Kubiliūtė Emilija , Anglickienė Laima
Published: December 2022

The article focuses on the drinking habits of Swedish higher education students at the beginning of the 21st century. The main aim of the research is to determine the traditions of alcohol consumption. In February and March 2021, a quantitative survey was conducted, with interviews among 96 students who had studied or were still studying in Sweden. The article presents the most common occasions on which students choose to consume alcohol, and discusses students’ choices of strong alcoholic beverages and their attitudes about alcohol consumption at student festivals and on other occasions. The research reveals that the pressure to consume alcohol is felt from friends. However, the consumption of strong alcoholic beverages is not evaluated negatively at student festivals.
Šv. Martyno diena Mažojoje Lietuvoje: tradicijų rekonstrukcija
Authors: Blockytė-Naujokė Kristina
Published: December 2022

In the article, using authentic Lithuanian material, the celebration of St Martin’s Day in Lithuania Minor is analysed from a chronological point of view (from the first mention to the present day), in order to show the general stages in the development of the festival, and the modern changes to the customs. The paper analyses the St Martin’s Day feast from the late 19th to the 20th century, showing the structural and functional changes in the calendar feast. It also aims to analyse modern customs in the festival (since 2002), and to discuss the prospects for the continuity of the ethnic tradition in today’s festival.
Paskutinio teismo, pragaro ir rojaus samprata Sergejaus Bulgakovo kūryboje
Authors: Ramonas Arvydas
Published: December 2022

The article presents theological thoughts on eschatological themes of Sergei Bulgakov, one of the most prominent theologians and priests in the Russian Orthodox Church in the late 19th and early 20th century. These themes touch on theological concepts of God’s last judgment, heaven and hell. Bulgakov interprets God’s last judgment in a very modern way, as a confrontation of the truth with its own primordial image in the idea of God. To the extent that the ‘final’ life of the person who has lived it differs from the best version of what it could have been if God’s will had been followed, so does the pain of unrealised happiness. The outcome of such a confrontation with truth is either heaven or hell. For Bulgakov, hell is not infinitely eternal. He believes that at the very end, when time and space no longer exist, those in hell can still experience God’s mercy. Hell is a lost God, heaven is a found God. Such thoughts are made all the more dramatic by the fact that Bulgakov’s work took place at a difficult political, economic and cultural time, both in Russia and in Europe, with the Bolshevik October Revolution, the First World War, and the Second World War. The influence of these processes on theology is also a focus of the article.
VOTIVE OFFERINGS IN CHURCHES IN UKRAINE: THE SUPPRESSION AND REVIVAL OF THE TRADITION
Authors: Krainia Olha
Published: December 2022

The collective memory of people in the post-Soviet space preserves some stereotypes, and they have a certain influence on the cognitive process. For example, the focus on interfaith conflict, as well as silencing issues of constructive interaction, was a deliberate manipulation. The author set the goal of analysing intercultural contact between different ethnic groups in the religious practice of votive offerings in Ukrainian lands. The attribution of votive offerings preserved in museums in Ukraine shows that the tradition was widespread, but waned during the Soviet era.
THE LEXIS OF LATVIAN-SPEAKING COMMUNITIES ON THE BALTIC SEA COAST IN LATVIA AND LITHUANIA: DENOMINATIONS FOR HOUSES
Authors: Rudzāte Ilze
Published: December 2022

Šio straipsnio tikslas – išanalizuoti tradicinių gyvenamųjų pastatų pavadinimus, jų įvairovę, kilmę ir paplitimą latvių kalbos plote Lietuvos ir Latvijos pajūrio teritorijoje. Šį pasirinkimą lėmė ne tik istorinės kalbų sąveikos (latviškai kalbančios diasporos dab. Lietuvos teritorijoje) veiksnys, bet ir panašus gyvenimo būdas, susijęs su žvejyba. Tyrime taikyti aprašomasis, iš dalies istorinis ir kartografinis metodai. Analizuojama latviška medžiaga iš įvairių rašytinių šaltinių (iš viso 21). Gyvenamojo namo pavadinimai (nams, istaba, māja) ir jų reikšmės keitėsi kartu su paties objekto raida. Nors dalyje tiriamos teritorijos ekonominiai, socialiniai ir kultūriniai kontaktai tarp lietuviškai ir latviškai kalbančių bendruomenių buvo svarbūs, ne visais atvejais lietuvių kalbos leksika perimta latviškai kalbančios bendruomenės (nebuvo perimti tokie gyvenamojo namo pavadinimai kaip butas ir troba).
DOES THE LAW HELP TO DISCLOSE THE REALITY? AN ANALYSIS OF DOMESTIC VIOLENCE IN THE CITY OF KLAIPĖDA OVER THE PERIOD 2010 TO 2020
Authors: Acus Arūnas , Kraniauskas Liutauras
Published: December 2022

The article analyses the dynamics of domestic violence in the city of Klaipėda during the period from 2010 to 2020. The analysis of reported cases of violence is intended to reveal the functioning reality of the Republic of Lithuania’s Law on Protection against Domestic Violence (LPADV) adopted in 2011, and to evaluate the fact that violence, as a conditionally marginalised phenomenon for a long time, is raised to the level of an actual social problem. In evaluating the dynamics of this phenomenon over the ten-year period, the authors reject the hypothesis that cultural traditions of violence have changed over the years. During the period analysed, domestic violence has established itself as one of the most widespread violent crimes in Lithuania, overshadowing other forms of violence. The article introduces four indicators of sociological assessment, which consist of the abuser’s family situation, gender, recurrent criminality, and associations between age cohorts, in a focused manner, which reveals the social effects of the adoption of the law, demonstrating ‘the disclosure’ of the known but deliberately ‘overlooked’ reality by the LPADV. The analysis of segments of violence presented in the article suggests the development of specific measures for the prevention of domestic violence and programme strategies, because not only is the legal regulation of domestic violence significant, but so is the identification of target groups that go beyond popular stereotypes of this phenomenon.
BENDRADARBIAVIMAS ATVEJO VADYBOS PROCESE, TEIKIANT PAGALBĄ MOKYKLOS NELANKANTIEMS PAAUGLIAMS
Authors: Braslauskienė Rasa , Vaičiulienė Jolanta , Pruckutė Sonata , Paulaitytė Laura
Published: December 2022

This article presents the points of view of case managers about the possibilities of cooperating with social educators in providing assistance to adolescents who do not attend school. The article was based on an analysis of academic and normative literature, and on the findings of qualitative research conducted by the authors. The analysis of the qualitative research data highlighted the following findings: in the opinion of case managers, cooperation with social educators could be strengthened by joint meetings, workshops and joint supervisions. An algorithm of consistent cooperation was created in order to achieve changes and positive outcomes for the child’s well-being.
ANALIZA SKŁADU CHEMICZNEGO ORAZ JAKOŚCI MIKROBIOLOGICZNEJ I MOŻLIWOŚCI WYKORZYSTANIA MLEKA OŚLEGO
Authors: FILIPCZAK-FIUTAK MAGDA , WSZOŁEK MONIKA
Published: December 2022

Background. The aim of the study was to compare the chemical composition, physicochemical properties and microbiological quality of milk from three animal species. The experimental material was raw cow's, goat’s and donkey's milk. The basic chemical composition was analyzed (total protein, casein, whey protein, fat, lactose, dry matter, ash content). In addition, the profile of fatty acids and the content of mineral compounds, as well as the microbiological quality of each type of milk were determined. Results and conclusion. Donkey’s milk was characterized by the highest content of lactose (7.30 %), a low concentration of total protein (1.63 %) - with a high share of whey proteins (0.56 %) and the lowest fat content among the examined types of milk (0.38 %) - with the highest content of linoleic acids (6.95 %) and linolenic acids (9.38 %). Significant differences in the microbiological quality of donkey's milk were found, with the lowest total number of microorganisms (3.53 log cfu/cm3 ), psychrotrophic bacteria (2.26 log cfu/cm3 ) and coliform bacteria (1.97 log cfu/cm3 ). The results obtained in this study exhibit significant differences between donkey's milk and cow's and goat's milk. Moreover, donkey’s milk could be an alternative for children suffering from allergies to cow's milk protein, as well as a raw material for the production of new types of fermented beverages.