bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Ice Massage Applied to SP6 Point on Labor Pain, Labor Comfort, Labor Duration, and Anxiety
Authors: Türkmen Hülya , ÇETİNKAYA SERAP , KILIÇ HAFİZE , TUNA SERPİL DİNÇER , ŞİRVANCI MEHMET , MUTLU HİLMİ
Published: January 2023

Objective: In the study, it was aimed to determine the effect of ice
massage applied to SP6 point during labor on labor pain, labor comfort,
labor duration, and anxiety. Design: A single blind, randomized
controlled experimental trial Setting and Participants: 100 primiparas,
50 in the intervention group and 50 in the control group, with 4-5 cm
cervical dilatations were included in the study. Ice massage was applied
to the SP6 point of the pregnant women in the intervention group at 4-5
cm, 6-7 cm, and 8-9 cm dilatations during three contractions.
Measurement Tools: The Pregnant Information Form, VAS, the Partograph
Form, Childbirth Comfort Questionnaire (CCQ), and the State Anxiety
Scale were used to collect data. Result: It was found that VAS scores of
the pregnant women in the intervention group were significantly lower
compared to the control group following the intervention at 4-5 cm, 6-7
cm, and 8-9 cm cervical dilatations (p=0.001, p=0.003,
p<0.001, respectively). Total CCQ and comfort level scores of
the pregnant women in the intervention group at 8-9 cm cervical
dilatation were determined to be significantly higher compared to the
control group (p=0.044,p=0.027, respectively). In addition, it was
determined that as the anxiety levels of the pregnant women increased,
their total comfort score decreased (p<0.05). Conclusions: It
was found that ice application to SP6 point during stage 1 of childbirth
decreased labor pain and provided positive comfort. Therefore, this
method can be used as a safe and effective midwife intervention in
childbirth.
Characteristics and treatment of pericarditis after vein of Marshall Ethanol infusion for persistent atrial fibrillation
Authors: Chen Yuyang , Li Hao-bin , Guo Dan-ying , Xie Yong , lin rong , Chen Yong-tong , Mai Bi-fang , Yang Jing , Li Yuan , Wang Jing-feng , Xie Shuang-lun
Published: January 2023

Background: The vein of Marshall ethanol infusion (VOM-EI) provides an
opportunity to achieve bidirectional conduction block of mitral
isthmus. However, this technique may induce traumatic
pericarditis. There is a lack of research on which populations are prone
to pericarditis after VOM-EI and how to treat it more effectively.
Methods: This retrospective study included 77 consecutive patients who
voluntarily underwent persistent atrial fibrillation radiofrequency
ablation combined with VOM-EI. With the occurrence of postoperative
pericarditis as the end point, the characteristics and risk factors of
postoperative pericarditis were analyzed. The curative effect was
evaluated by the symptom relief rate of pericarditis 48 hours after
treatment. Results: 15 had postoperative pericarditis among the 77
patients, accounting for 19.5%. The hospital stay of the patients with
pericarditis was longer than that without pericarditis (10.0 vs 8.0
days, P = 0.045). Of the 15 patients with postoperative
pericarditis, 8 received colchicine. Among the patients treated with
colchicine, the average treatment intensity was 1.04 mg/d, 7 patients
were relieved within 48 hours, and the symptomatic remission rate was
87.5%. Among the remaining 7 patients who did not receive colchicine,
only 2 patients had symptomatic remission. Compared with the group
without colchicine, the duration of symptoms was significantly shorter
(27.88 vs 51.93 hours, P = 0.024). In the multivariate logistic
regression analysis, colchicine was the only effective method to relieve
the 48 hours symptoms of postoperative pericarditis ( OR =17.500,
CI 1.223-250.4, P = 0.035). Conclusion: Postoperative
pericarditis is one of the complications of VOM-EI, and colchicine may
have a good short-term effect on it.
Neutrophil-lymphocyte ratio and platelet-lymphocyte ratio are associated with prognosis of patients: a clinical high-grade endometrial carcinoma prognostic model
Authors: zhang zhaoyang , Song Kun , Chu Ran , Liu Jihong , Zhang Jieqing , Guo Hongyan , Xia Min , Liu Penglin , Zhang Yue , Feng Jie , Wang Qiannan , Yao Shu , Yao Shuzhong , Wang Xipeng , Lin Bei , Zhao Weidong , Li Xiaomao , Zhang Ping , Zhao Xia , Wang Jianliu , Ma Ding , Li Yang , Chen Gang , Kong Beihua
Published: January 2023

Objectives: To evaluate the predictive significance of
neutrophil-lymphocyte ratio and platelet-lymphocyte ratio in the
prognosis of high-grade endometrial carcinoma and to establish a novel
predictive model. Design: A retrospective multicenter study. Setting:
Fifteen hospitals of the Chinese Endometrial Carcinoma Consortium.
Population: This study included 910 high-grade epithelial endometrial
carcinoma patients from the multicenter who underwent initial surgical
treatment between January 1, 2005, and December 31, 2019. Methods: Data
was retrospectively obtained from the medical records and follow-up
information of patients. Cox proportional hazard regression models were
developed to predict the risk of recurrence and death at 3, 5, and 10
years, and the models were validated and calibrated. The area under the
curve was used to measure the predictive performance of the model. Main
outcomes measures: Disease-free survival and overall survival. Result:
Platelet-lymphocyte ratio and neutrophil-lymphocyte ratio were risk
factors for recurrence, and neutrophil-lymphocyte ratio was a risk
factor for death. We established models for predicting death and
recurrence. In the validation cohort, the area under receiver operating
characteristic curve of disease-free survival model at 3,5 and 10 years
was 0.72, 0.77, 0.77, and of overall survival model was 0.72, 0.81, and
0.84. Kaplan–Meier survival analysis showed a significant difference
between low-risk and high-risk groups. Conclusions:
Neutrophil-lymphocyte ratio and platelet-lymphocyte ratio are risk
factors affecting the prognosis of high-grade endometrial carcinoma
patients. This novel prediction model for high-grade endometrial
carcinoma can provide accurate postoperative risk classification and
prognosis prediction for patients. Keywords: Endometrial carcinoma,
prognostic model, neutrophil-lymphocyte ratio, platelet-lymphocyte ratio
Consciousness and Environmental Education: urgencies from the post-pandemic context
Authors: Lopes Pinheiro Samuel , Pasquier Florent
Published: January 2023

This paper presents reflections on the fundamentals of Environmental Education when dealing with the urgency of learning the lessons from the pandemic crisis period of the Coronavirus. For this, from a transdisciplinary approach, crossing and seeking to go beyond different disciplines, some of the challenges that were intensified with the pandemic are contextualized, with the support of authors from sociology (Boaventura de Sousa Santos) and philosophy (Edgar Morin), in dialogue with authors who discuss in the field of education (Balduíno Andreola; Paulo Freire), as well as the inspiration of literature (Ernesto Sabato). As a convergence point of the reflections there is the investigative treatment about the concept of consciousness in different perspectives and how we can articulate criticality and transdisciplinarity the urgencies in learning process on Environmental Education. Among these socio-environmental urgencies that appear is the need to pedagogically approach the complexity of the concept of life and the inequalities that mark the pandemic period.
Analytical formula of the wehrl entropy and wehrl phase distribution of the field in generalized coherent squeezed states
Authors: Almalki Fadhel , Mubaraki Ali , Abdel-Khale Sayed , Khalil Eied
Published: January 2023

In this framework, the effect of a Kerr-like medium and the coupling function dependent on the number of photons operator on the interaction between a two-level atom and a non-linear field is studied. A relation between the Kerr-like medium parameter and the field-atom coupling parameter is used to obtain a simplified formula for Rabi frequency. The wave function of the proposed model is obtained, followed by the derivation of the phase distribution and from which the wehrl entropy formula is calculated. The effect of the initial state and the non-linear func?tion dependent on the number of photons operator and the Kerr-like medium on entanglement is calculated through the Wehrl entropy formula, wehrl distribution and the behaviour of photons by studying the correlation function. The entangle?ment decreases when the function dependent on the number of photons operator is taken into account, while the entanglement gradually improves when the squeezed state is considered, and the entanglement decreases significantly when considering the Kerr medium. An oscillatory distribution is formed between the classical and non-classical in the coherent state. The non-classical distribution disappears when considering the squeezed state and the Kerr-like medium.
Application of Boiler Fly Ash for Oil Palm Kernel Separation in Claybath
Authors: Effendi Zulham , Rangkuti Ika Ucha Pradifta , Muhtadawan Mhd. Insan
Published: January 2023

The burning of shells and fiber as boiler fuel in palm oil mills produces waste in the form of ash which is not utilized and managed optimally, resulting in environmental damage. Based on the chemical compounds contained in fly ash, its abundant availability, its cheap price and easy-to-obtain, fly ash can be used as a cheap raw material in claybaths as a substitute for clay and calcium carbonate. This study aims to determine the effective weight of boiler ash in reducing kernel and shell production losses at the kernel processing station. This study used variations in the weight of boiler fly ash, namely 3000 g, 3500 g, 4000 g, 4500 g, and 5000 g which were tested first in the laboratory. The application of boiler ash variations that were close to the norm was tested directly in the claybath. The best weight parameter for using fly ash is found in the weight variation of B5 (5000 g) with a loss of production in the sample of 3.98% or 0.159% of the oil palm fresh fruit bunches. At the time of application, boiler fly ash should be mixed with water at a ratio of 1:2 (fly ash to water) to result the best effect. Key words : Boilers, Clay bath, Fly Ash, Kernel, Shell
Physicochemical Characteristics of Instant Boiled Rice: Study of Sodium Citrate Concentration and Soaking Time
Authors: Hawa La Choviya , Rhomadhona Widya , Putranto Angky Wahyu
Published: January 2023

Cooked rice (nasi liwet) is a typical rice dish of Java Island which is cooked using spices so that it has a unique taste and aroma. Making nasi liwet takes a long time, so this dish is only served at certain times. Therefore, a fast rice processing technique is needed but still has a distinctive taste and aroma. The purpose of this study is to analyze the physicochemical analysis of instant liwet rice based on the concentration and soaking time of sodium citrate. The physicochemical analysis tested were rehydration time, volume expansion, bulk density, texture, yield, ash content, and water content. The study was conducted by soaking sodium citrate (0, 2, 5, and 8% w/v) and soaking time (2, 4, and 6 hours) on rice. The results showed that the fastest rehydration time for instant nasi liwet was 4.55 minutes. The range of observation parameters such as expansion volume is 66.26-91.24%; bulk density is 0.413-0.581 g/ml; the texture is 431-1496 g/mm; yield is 89.64-92.26%; ash content is 4.11-4.45% and water content is 5.83-7.03%wb. Variations in sodium citrate concentration and immersion time increased the swelling volume and ash content, while water content, bulk density, texture, and yield tended to decrease. The best treatment based on the multiple attribute Zeleny method was immersion of 5% sodium citrate for 4 hours of immersion. Keywords: Immersion Time, Instant Rice, Nasi Liwet, Physicochemical, Sodium Citrate
Mapping Potential Locations of Reservoir Development Planning Based on Biogeophysical Conditions in Bulok Watershed of Lampung Province
Authors: Amini Rosidah , Yuwono Slamet Budi , Kusumastuti Dyah Indriana , Riniarti Melya , Banuwa Irwan Sukri , Wahono Endro Prasetyo
Published: January 2023

Floods and droughts are problems that threaten the success of agricultural crops. The reservoir can be used as a water management system that can anticipate these problems. This study aims to examine the potential location of the reservoir development planning based on biogeophysical conditions in the Bulok Watershed of Lampung Province, which uses the overlay method and weighting and scoring techniques developed by Geographic Information System (GIS). The population covers the entire biogeophysical area of the Bulok watershed, with samples of 4 biogeophysical parameters, namely land cover, slope, soil conditions and geological conditions. The results showed that the distribution of land cover types that dominate in the Bulok watershed is mixed dry land agriculture. The most common slopes are flat to wavy slopes. The soil types that dominates are soils with andesite lithology, basalt, diorite, fine-grained tefra, and coarse-grained tefra. The geological formation that dominates is the Hulu Simpang Formation.  Based on the 4 biogeophysical parameters selected in the study, there are 69 locations with great potential for planning the construction of reservoirs in the Bulok watershed. 20 points are spread over the administrative area of Tanggamus Regency, 23 points in Pringsewu Regency, and 26 points in Pesawaran Regency. Of the 87.670 ha of Bulok watershed area, 14.192 ha is very potential location area.   Keywords:   Biogeophysical Conditions, Potential Locations, Reservoir
Increasing Irrigation Efficiency through Maintenance of Irrigation Network Based on Dynamic Simulation
Authors: Rahman Mislaini , N Bambang Pramudya , Purwanto M Yanuar J , Solahudin M
Published: January 2023

Given the increasing demand for water, it is necessary to make an effort to anticipate water scarcity through increasing efficiency in an irrigation area. Increasing efficiency requires an increase in the contribution of farmers to finance the repair of irrigation canals. The purpose of this study is to formulate a financing scheme for maintenance of irrigation networks by the state and farmer participation (contribution). Research was conducted at the Cihea Irrigation Area (Cianjur Regency). The method used is system dynamics modeling by observing the parameters studied, including; asset damage, productivity, farmer contributions, public works budget and irrigation efficiency. The results of the analysis with dynamic simulations show that the best scenario to reduce damage to Cihea Irrigation assets is scenario 2 because it reduces the damage by 10.29% and increases the irrigation maintenance index by 0.05 within 10 years. Thus, it is necessary suggest to the government and farmers to increase the contribution and budget for the improvement of the Cihea Irrigation.  Keywords: Asset Damage, Efficiency, Farmer's Contribution, Government Budget, Maintenance
Estimation of Irrigation Water Requirement for Land Preparation of Ricefield in Irrigation Modernization
Authors: Andri Andri , Murtiningrum Murtiningrum , Ngadisih Ngadisih
Published: January 2023

Irrigation water requirement for irrigation for land preparation is the highest water requirement in rice cultivation therefore it was essential to determine it based on recent condition in order to support the irrigation modernization. This research aimed to determine the irrigation requirement and tillage specific drafts based for various water ponding level in rice field as well as to determine parameters of irrigation requirement for land preparation to support irrigation modernization. Determination of irrigation water requirement is computed based on equation developed by Van de Goor and Zijlstra (1968) with variation of water volume supplied for saturation and ponding level. Variation of water supplied during land preparation resulted in the variation of tillage specific drafts according to empirical formula developed by Kisu (1972). Water level ponding of 0 mm, 5 mm, 30 mm, and 74 mm resulted in water requirements for land preparation (Project Water Requirement/PWR) of 112 mm, 122 mm, 139 mm, and 198 mm, respectively. The mentioned water ponding level resulted in the tillage specific draft of 1.131 kg/cm2, 1.101 kg/cm2, 0.886 kg/cm2, and 0.954 kg/cm2, respectively. The thicker water ponding in the rice field, the more water requirement for land preparation, but the less energy needed for tillage. Recommended irrigation requirement for land preparation was 139 mm with 15-day duration of land preparation.  Keywords: Irrigation modernization, Irrigation requirement, Land preparation, Tillage specific draft, Ponding
Production and Characterization of Andong Bamboo (Gigantochloa pseudoarundinacea (Steudel) Widjaja) Pellets from Various Stem Parts
Authors: Hidayat Wahyu , Pah Jacky Michael , Suryanegara Lisman , Hasanudin Udin , Haryanto Agus , Wulandari Christine
Published: January 2023

Bamboo is an abundant biomaterial having important potential as a resource for bioenergy development. In this study, the potential of andong (Gigantochloa pseudoarundinacea (Steudel) Widjaja) bamboo for pellet production was evaluated. Some properties of bamboo pellets as density, moisture content, moisture adsorption, compressive strength, and heating value were analysed. The results indicated that bamboo is highly prospective to be explored for fuel pellets commercially. All characteristics of pellet made of bamboo fulfilled the requisites of the commercial pellets. The heating value of the pellets achieved the minimum standard for commercial pellets along with SNI 8675:2018 (>17,5 MJ/kg). The effects of culm parts on the moisture content, density, moisture adsorption were not significant. There were significant differences in compressive strength and heating value between bamboo pellets produced from different culm parts. This research showed potential of andong bamboo pellet for bioenergy resource. Keywords:   Andong (Gigantochloa pseudoarundinacea), Biopellet, Mechanical Properties, Physical Properties
Punto cuántico cónico doble verticalmente acoplado de GaAs/AlxGa1-xAs bajo efectos de presión hidrostática y temperatura
Authors: Mora Rey Fernanda , López Aristizábal Ana María , Morales Aramburo Alvaro Luis , Duque Echeverri Carlos Alberto
Published: January 2023

Partiendo de una estructura compuesta de dos pozos cuánticos cónicos (CQDs) verticalmente acoplados de GaAs rodeados de AlxGa1-xAs en una concentración de 0,3, se estudia en primer lugar como las dimensiones del sistema causan un cambio en el confinamiento, para esto se varía la altura del pozo cuántico superior y se encuentra la óptima para trabajar, con esto definido, se evalúan los efectos de la presión hidrostática (entre 0 GPa y 3 GPa) y la temperatura (entre 0 K y 300 K) en la masa efectiva, el ancho de banda prohibida (Gap), la constante dieléctrica y su impacto sobre las autoenergías y autofunciones del sistema. Además, se evalúan los efectos al incluir la presencia de una impureza en la estructura ubicada en el pozo cuántico inferior. Haciendo uso del método de elementos finitos, se evidencian variaciones en las energías y funciones de onda del sistema, las cuales se deben a la alteración de la masa efectiva y de la nueva energía potencial. Analizando el comportamiento de la energía de enlace se nota un cambio en la constante dieléctrica cuando el sistema se encuentra sometido a una temperatura alrededor de 200 K debido a que sobre este valor el Gap pasa de ser directo a ser indirecto. Finalmente, la presencia de la impureza en el sistema genera un potencial adicional, en consecuencia, las energías en la estructura disminuyen bajo los efectos evaluados, haciendo cambios más contundentes en las funciones de onda y energías debido a este potencial.
Development and Implementation of Search Engine Optimization Algorithm using Angular Framework
Authors: Giorgi Kapanadze  , Bardavelidze Avtandil
Published: January 2023

The paper deals with the development of search engine optimization algorithm and its integration into Internet browsers. In particular, the paper presents an effective search engine optimization algorithm and the algorithm is implemented using a client-side programming angular framework.  The research algorithm and its implementation make the search process efficient and flexible for the user, which is reflected in the fact that frequently searched phrases will be automatically suggested.
LGBT and Religious Negotiations: A Case Study of Youth Interfaith Forum on Sexuality (Yifos)
Authors: Roni Roni
Published: January 2023

Most religious perspectives, particularly the conservative interpretation, emphasize the incompatibility of being a Lesbian, Gay, Bisexual or Transgender (LGBT) and being religious. This contradiction creates internal conflicts for many LGBT individuals. In social and political spheres, many religious groups post hostility and rejection against the LGBT using the justification of their religious dogma. The position of the LGBT has been more vulnerable since the reformation period (1998 to present) in Indonesia, during which Islamic conservatism is rising. Therefore, LGBT individuals perceive themselves as condemned and excluded from religious communities. Nevertheless, the existing LGBT communities and organizations focus more on campaigning social acceptance and public recognition through a human rights perspective. This research employs a qualitative method and addresses the Youth Interfaith Forum of Sexuality (YIFoS) in providing a ‘safe space’ for the LGBT in negotiating their non-normative sexuality and religious values. Taking a case study of YIFoS, I argue that LGBT could also embrace their religiosity. Through the concept of ‘liberation of the body and alternative religious interpretations, YIFoS believes that LGBT sexuality could be reconciled with religion.  This research is divided into two parts. First is how YIFoS provide a way of reconciling of non-normative sexuality of LGBT and religion. Second is what approach is employed by YIFoS in helping LGBT individuals negotiate their non-normative sexuality and religious values. My findings demonstrate that the YIFoS applies the concept of ‘experience of the body as the main departure of liberation and employs an interfaith approach by inviting religious figures whose interpretations are more accommodative toward LGBT. The interfaith approach is aimed at building commonality on LGBT within religious communities. In addition, these two approaches are used to help LGBT individuals to stimulate self-acceptance and personal reconciliation between one’s religious values and their non-normative sexuality.
Religious Solidarity for Coping with Economic Crisis During the Covid-19 Pandemic
Authors: Luqman Luqman , Ilhamdi Ilhamdi
Published: January 2023

The COVID-19 pandemic has devastated the global and local economies. However, it has also contributed to the functioning of social solidarity in dealing with crisis pressure among local people which became a survival strategy for various businesses. This paper aims to map the patterns of economic pressure resulting from a pandemic and analyze social strength factor that became a survival strategy in the economic field. This research was conducted on several Chinese Indonesian converts to Islam [mu’alaf] to examine their religious solidarity that served as the strength for their survival as entrepreneurs. Therefore, qualitative research was conducted in a community of converts to Islam in Pontianak city, as one of the centers with a significant number of Chinese populations. In addition to data on crisis they experienced during the pandemic, this research also revealed their perceptions, motivation and actions in response to COVID-19. The results of the research showed that social and spiritual capital is the most important support that allows converts to recover from difficult times. Religion has become the moral basis of these entrepreneurs for solidarity and a source of support in coping with the pressure and problems. In the midst of scarcity of economic resources, religion-based social resources have become the answer to the problems encountered by these entrepreneurs.
İnsan kaynakları yönetiminde eğitim ve geliştirme alanının bibliyometrik analizi
Authors: MAN Fuat , YILMAZ Canan , KURUTKAN Mehmet Nurullah
Published: January 2023

Bu çalışmada eğitim ve geliştirme alanının WoS’daki görünümünün bibliyometrik analiz çerçevesinde sunulması amaçlanmıştır. Veriler WoS Core Collection veri tabanından alınarak R tabanlı Bibliometrix, VOSviwer ve SciMAT programlarıyla incelenmiştir. Çalışmada toplam 309 makale incelenip bulgular; performans analizi, bilgi yapıları analizi ve motor temalar şeklinde üç ana başlıkta raporlanmıştır. Sonuçta en fazla yayını olan dergi International Journal of Training and Development (28), en fazla etkileyen disiplin psikoloji, en fazla yayın yapan yazarlar Nicholas Clarke ve Xavier L. Audet (6), en fazla atıf yapılan yazar Kurt Kraiger (22), en fazla yayın yapan üniversite Southampton Universitesi (9) ve en fazla yayın yapan ülke ABD olduğu tespit edilmiştir. Ayrıca ilk dönemde “human resources management” motor tema iken, sonraki dönemde “self-efficacy”, “firm performance”, “antecedent”, “stress”, “antecedent” ve “training” motor temalar olmuştur.
Annelerin dijital ebeveynlik tutumları ile aile-çocuk internet bağımlılığı arasındaki ilişkinin incelenmesi
Authors: ARICI DOĞAN Duygu , DÖĞER Saniye Selin
Published: January 2023

Bu araştırma 12-17 yaş çocuğa sahip annelerin dijital ebeveynlik tutumları ile aile-çocuk internet bağımlılığı arasındaki ilişkinin incelenmesi amacıyla yapılmıştır. Araştırmanın yöntemini nicel araştırma yöntemlerinden ilişkisel tarama deseni, örneklemini ise 12-17 yaş çocuğa sahip 107 anne oluşturmaktadır. Veri toplamak amacıyla araştırmacılar tarafından hazırlanan “Kişisel Bilgi Formu”, “Dijital Ebeveynlik Tutum Ölçeği” ve “Aile-Çocuk İnternet Bağımlılığı Ölçeği” kullanılmıştır. Elde edilen veriler SPSS 22 paket programı kullanılarak analiz edilmiş, betimsel analizini yapmak amacıyla frekans dağılımları incelenmiştir. Değişkenler arasındaki ilişkiyi belirlemek için Spearman’s Korelasyon Testi kullanılmıştır. Çalışmaya katılan annelerin %50,5’i kız, %49,5’i erkek çocuğa sahipken, yaş ortalaması 14 olarak belirlenmiştir. Cinsiyet, teknolojik cihaz kullanım süresi, teknolojik cihaz kullanım kurallarının olması ve ölçeklerin alt boyutları arasında anlamlı bir ilişki olduğu belirlenmiştir.
The effects of economic rationality, currency perception, and money attitudes of working youth on financial management competencies
Authors: ÖZBEK Adem
Published: January 2023

The prominence of past financial activities in the future planning of economic units is quite high. Numerous environmental factors play a role in the financial management skills of households, which are the economy's building blocks. Individuals acquire economic competencies by experiencing, understanding, and observing these environmental factors. Particularly, individuals within the age range of 8-17 assume importance in acquiring these competencies. In the study to determine the impact of economic rationality, currency perception, and money attitudes of 132 young participants within the age group of 8-17 working in Fatih Industry, Büyük Industry, Bağkur Industry, Akçaabat Industry, Arsin Organized Industry, and Yomra Furniture Industry sites in Trabzon, on financial management competencies. As a result of the analysis, it was observed that the economic rationality, currency perception, and money attitudes of employed young individuals impact their financial management competencies.
Comparison of Vehicle Suspension Dynamic Responses for Simplified and Advanced Adjustable Damper Models with Friction, Hysteresis and Actuation Delay for Different Comfort-Oriented Control Strategies
Authors: Klockiewicz Zbyszko , Ślaski Grzegorz
Published: January 2023

Throughout the years, many control strategies for adjustable dampers have been proposed, designed to boost the performance characteristics of a vehicle. Comfort control strategies such as Skyhook (SH), acceleration-driven damping or power-driven damping have been tested many times using simulation models of vehicles. Those tests, however, were carried out using simplified damper models – linear or simple bilinear with symmetric characteristics. This article presents the results of examination of the influence of using more complex damper models, with friction, hysteresis and time delay of state switching implemented, on the chosen dynamic responses of a suspension system for excitations in the typical exploitation frequency range. The results of the test are compared with those found in the literature and with the results of simulations performed with a simplified version of the advanced model used. The main conclusion is that friction and hysteresis add extra force to the already existing damping force, acting like a damping increase for all analysed control strategies. The actuation delays limit the effectiveness in a sense of comfort increasing to only some frequencies. The research shows the importance of including the proposed modules in testing for both adjustable and passive dampers.
Time Series Analysis of Fossil Fuels Consumption in Slovakia by Arima Model
Authors: Michalková Mária , Pobočíková Ivana
Published: January 2023

According to the Green Deal, the carbon neutrality of the European Union (EU) should be reached partly by the transition from fossil fuels to alternative renewable sources. However, fossil fuels still play an essential role in energy production, and are widely used in the world with no alternative to be completely replaced with, so far. In recent years, we have observed the rapidly growing prices of commodities such as oil or gas. The analysis of past fossil fuels consumption might contribute significantly to the responsible formulation of the energy policy of each country, reflected in policies of related organisations and the industrial sector. Over the years, a number of papers have been published on modelling production and consumption of fossil and renewable energy sources on the level of national economics, industrial sectors and households, exploiting and comparing a variety of approaches. In this paper, we model the consumption of fossil fuels (gas and coal) in Slovakia based on the annual data during the years 1965–2020. To our knowledge, no such model, which analyses historical data and provides forecasts for future consumption of gas and coal, respectively, in Slovakia, is currently available in the literature. For building the model, we have used the Box–Jenkins methodology. Because of the presence of trend in the data, we have considered the autoregressive integrated moving average (ARIMA (p,d,q)) model. By fitting models with various combinations of parameters p, d, q, the best fitting model has been chosen based on the value of Akaike’s information criterion. According to this, the model for coal consumption is ARIMA(0, 2, 1) and for gas consumption it is ARIMA(2, 2, 2).
A Flywheel-Based Regenerative Braking System for Railway Vehicles
Authors: Jackiewicz Jacek
Published: January 2023

Regenerative braking is a technique that employs electric motors to convert the dynamic mechanical energy from the motor’s spinning rotor and any attached loads into electricity. However, such a type of regenerative braking can only slow but not stop the vehicle because there is too little energy to excite the motor acting as a generator at low speeds. Therefore, this paper presents a unique flywheel-based regenerative braking system for railway vehicles. This system is supposed to meet high safety and comfort expectations in all operating conditions. The braking action control of this system should allow braking of empty or loaded vehicles according to load, the anti-blockage braking action of wheels and prevent wheel-slide during braking or wheel slip during acceleration. The new regenerative braking system under development, like any kinetic energy recovery system, requires the application of continuously variable transmission. The essence of the new solution is to design and build this type of variable transmission using only one planetary gear controlled through the powertrain control module for an electric motor cooperating concurrently. This paper describes complete modelling and simulation realisation on a closed-loop servomotor drive, which cooperates with the variable transmission of the regenerative braking system based on the Scilab/Xcos environment.
Analytical Approach for Vehicle Body Structures Behaviour Under Crash at Aspects of Overloading and Crumple Zone Length
Authors: Kurpisz Dariusz , Obst Maciej , Szymczak Tadeusz , Wilde Radosław
Published: January 2023

Road safety problem is still topical, especially since the number of vehicles and the volume of traffic are increasing. It is possible to increase the safety of road users through systemic changes in many areas related to transport. The deformation of the vehicle body during an accident has an impact on the loads acting on the passengers. Vehicle body deformation depends on complex parameters, and knowledge of these parameters is essential for designing crumple zones and the accident reconstruction process. Knowledge of the mechanical parameters of the vehicle structure during deformation is also a reference to passenger injury indicators assessment. This paper reports results from the analytical approach for determining the protection level of personal vehicles. The proposed conception is based on the results from the static stiffness characteristic of the Ford Taurus, which gives the possibility of phenomenological and simple body crumple analytical description at a speed equal to 10 km/h, 40 km/h, 56 km/h and 60 km/h, which is an original part of the work. The approach enables us to describe the vehicle crash by focusing on variations of deformation in time, stiffness, vehicle collision time (duration), deceleration and dynamic crash force. Basing on the body stiffness data of the personal vehicle, the length of the deformation zone in the front of the car and the maximum values of force at the crash for a speed of 60 km/h are presented. Results obtained by the authors show that is possible to estimate the overloading level during the crash time of a vehicle based on the stiffness characteristic of the car body. The proposed methodology can be developed and the advantage of the presented procedure is an uncomplicated useful tool for solving complex problems of a vehicle crash.
The impact of characteristics of industry-university-research cooperation network on innovation performance: mediating role of social capital
Authors: Wang Chengying , Zhu Zhihong
Published: January 2023

Taking A-share listed companies in the petroleum industry as the research object, this paper empirically studies the relationship among the characteristics of industry-university-research (IUR) cooperation network, social capital, and innovation performance in the petroleum companies. The empirical research results show that the strength and centrality of the IUR cooperation network in the petroleum industry positively affect social capital and innovation performance; Network scale has no significant positive impact on social capital and innovation performance; Social capital plays a partially mediating role in the influence of characteristics of IUR cooperation network on innovation performance. According to the research findings, some strategies to improve the innovation performance of petroleum companies are proposed, which include occupying the center of the IUR cooperation network, high-frequency interaction with the objects of the IUR cooperation network, and expansion of the IUR cooperation network should match its own growth stage.
The Evolution of the Maternal Care Network in Romania. Directions of Development, Benefits and Limitations of Child Care Alternative
Authors: Mihaela-Gianina Lupu , Irina Franciuc
Published: January 2023

The development of family-type services was an important step in the goal of closing the classic state institutions with forms that would better meet the individual needs, identified in the situation of each child in difficulty.

The topic addressed in this paper refers to the evolution of the maternal care network since the date of legislation of this form of special protection in our country, analyzing aspects of legislative changes, innovative models, directions of development, the current operation of the system benefits but also obstacles encountered over time.
The Strategy for Improving the Quality of the Medical Services
Authors: Andreia Cojanu , Cosmin Preda , Leonard Gurgas
Published: January 2023

Healthcare management has certain particularities, especially when it comes to the quality of the services it provides. Continuous improvement and adaptation of these services to the needs of the patients it’s an activity which should be part of the strategy any medical institution has, especially hospitals.

In this paper we analyze the results of the evaluations prior and after several measures were implemented in order to improve the quality of the medical services in a medical institution.
Dental Services during the COVID-19 Pandemic
Authors: Mirela Rosu Elena
Published: January 2023

The quality of dental services is an important component in the process of oral health care and requires constant evaluation for a possible increase in it. With the SARS-COV II pandemic, dental services have suffered. The restrictions applied successively led to the closure of the dental offices, offering services to urgent cases only. Thus, throurh the questionnaire method, we formed a representative sample of the population covering a variety of professions and ages, generating a general opinion about the evaluation of the dental patient´s satisfaction of the services received between January 2022 and February 2022. The study group involved 151 patients.
On Treatment of Some Physical Properties of Gas in Simulation of High-Voltage SF6 Circuit Breakers
Authors: Torlak Muris , Čaluk Samir , Hadžović Belma Bosović , Smajkić Amer
Published: January 2023

Simulation of unsteady flow of SF6 gas in a simplified high-voltage circuit breaker model describing the nozzle, contacts and their nearest surrounding is presented. SF6 is considered as viscous, compressible, real gas described by Redlich-Kwong model. Heat transfer is taken into account due to the gas compressibility. The heat source, triggered by the electric arc between the contacts, was out of the scope of the current research, thus it was not included in the simulations presented. Turbulence, caused by the gas viscosity, is described using realizable k-ε model. In the simulation model, one of the contact sides – electrodes, is considered as moving at prescribed velocity. The part of the space ‘swept’ by the moving electrode is considered as the gas with imposed artificially increased viscosity in order to imitate the rigid body behaviour. Thus, no moving parts of the computational mesh are used in the model. The conservation equations of mass, momentum and energy, given in integral form, are solved using a finite-volume method on unstructured computational grids.
Influence of Vehicular Frequency on Air Quality of Delhi, India
Authors: Kumar Vijay , Gupta Sunita , Jolli Virat
Published: January 2023

Vehicular traffic has registered a phenomenal growth in the last few decades on Delhi roads, their increasing number is a cause of concern for city planners and administrators as they not only deteriorated the quality of environment but has also affected the human health. In this context, we studied the influence of traffic i.e., vehicular frequency on air quality of Delhi. Five sites were selected in four cardinal directions i.e., North, South, East, West and Centre for which data of air pollutants were already available in public domain (DPCC online website). Vehicular frequencies were recorded for Light Motor Vehicle (LMV) and Heavy Motor Vehicle (HMV) for both weekdays and weekends. Correlative analysis were carried out to study the relationship between vehicular frequency and air pollutants. The study showed, East of Delhi had the highest traffic load followed by North, West, South and Centre. We found statistically significant positive correlation between dust pollution, PM10 (r = 0.8) and PM2.5 (r = 0.6) with vehicular frequency while negative association with ozone (r = –0.5). A weak positive correlation was found with NOx (r = 0.2) while weak negative correlation with SO2 (r = –0.3). The study revealed that vehicular exhaust and their movement contribute in deteriorating the air quality of Delhi. Our findings suggest promotion of usage of public transport along with implementation of BS-VI stage vehicles and development of vegetation filters along the roads with native tree species.
Leaching of Heavy Metals from Contaminated Soil Stabilised by Portland Cement and Slag Bremen
Authors: Lindh Per , Lemenkova Polina
Published: January 2023

Leaching behaviour is an important evidence of soil quality. The assessment of leaching of heavy metals from the contaminated soil is vital for environmental applications. However, leaching may differ in soil stabilised by various ratios of binders. In this study we measured leaching behaviour of soil contaminated by As, Cd, Co, Cr, Cu, Hg, Ni, Pb, V, Zn, methyl Hg, aliphatic compounds of hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and dissolved organic carbon (DOC). To evaluate leaching of these substances we tested the effects of changed amount of binder (120 kg and 150 kg) and binder ratios (70/30 %, 50/50 % and 30/70 %) added to soil samples. Soil was dredged from several stations in Ostrand area, SCA Sundsvall Ortvikens Pappersbruk. The results demonstrated a systematically decreasing leaching with the increased slag. The contribution of this research include: (i) devising systematic approach to extract information on leaching from stabilised soil collected from the coastal area of Bothnian Bay, (ii) developing a workflow for stabilising soils by various combination of Portland cement Basement CEM II/A-V (SS EN 197-1) and ground granulated blast furnace slag (GGBFS), Bremen type (SS EN 15167-1), (iii) determining water ratio and density for the untreated and stabilised soil and performing comparative analysis, (iv) evaluating chemical content of pollutants and toxic elements in the aggregated soil samples. Treatment of the contaminated soil by binders improved its parameters by the increased strength and decreased leaching of heavy metals and toxic elements.
Transformation of the economic role of local self-government in low-urbanized territories in Ukraine: Initial conditions and social perception
Authors: Hlynskyy Nazar , Krykavskyy Yevhen , Hirna Olha , Savchenko Yuliia
Published: January 2023

Newly formed territorial communities acquire a real subjectivity in the processes of the management of territorial development: they become responsible for a significant share of day-to-day economic activities within their sphere of responsibility, especially in territories with a predominantly rural population. This article aimed to study the changing role of local self-government in ensuring the economic development of the low-urbanized territory, determining public opinion and expectations of residents from local governments in the new conditions. A public opinion poll of residents living in selected local communities was conducted. This article identified the objective factors of the level and pace of newly formed territorial communities’ development in Ukraine. It has been proved that the decentralization of power changes the role of local government and the expectations of residents from it and their assessments of the situation at the local level.
Empirical Modelling of Lithium Mitigation for Alkali-Silica Reactivity
Authors: Vacher Marc , Jacobsen Stefan
Published: January 2023

The Alkali-Silica Reaction (ASR) is a deleterious concrete chemical reaction that has been studied a lot since its discovery in 1940. The reaction produces a highly hygroscopic silica gel that swells into the pores of concrete, resulting in the critical decrease of the mechanical performances of the affected structures. Some methods have been investigated to limit expansion under a certain limit, among them lithium mitigation. However, the mechanisms are not really understood yet and determining the right amount of lithium is still arduous. An attempt for a method in coherence with experience is presented in this study, using the chemo-mechanical model of Larive and curve-fitting. The results provide accuracy to experimental measurements from several protocols, and call for further research.
Effect of High-Pressure Washing on Chloride Ingress in Concrete – Development of an Accelerated Test Method
Authors: Andersson Louise , Silfwerbrand Johan , Selander Anders , Trägårdh Jan
Published: January 2023

Bridges constitute an important part of the infrastructure. For bridges to have the longest possible service life with minimum repairs, the maintenance is of great importance. One type of bridge maintenance that is rarely researched is the continuous preventive maintenance. The continuous preventive maintenance consists of removal of vegetation, cleaning of bridge joints and drainage systems as well as high-pressure washing of the structure. The effect of washing is discussed but not properly researched. A study on the effectiveness of high-pressure washing on concrete is therefore being conducted. An accelerated test method is being developed to mimic field testing. The method has been developed through tests on small concrete specimens subjected to fluctuating temperature, fluctuating moisture, and repeatable exposure to de-icing salt during several cycles. The specimens are of two recipes where one represents an old concrete bridge with rather high water-cement ratio (0.6) and the other one represents a new concrete bridge with a low water-cement ratio (0.4). The first two versions of the method are described. The second version shows promising results, but the method needs further development to incorporate additional factors.
Determination of Fall Risk Predictors from Different Groups of Variables
Authors: Bobowik Patrycja , Wiszomirska Ida
Published: January 2023

Introduction.
Risk factors associated with falling in the elderly are numerous. Most existing tools use a combination of functional assessment and risk scoring based on known risk factors. The aim of the study was to verify which parameters could be used to predict fall risk (FR) in older women.

Material and Methods.
The study involved 56 inactive females aged 71.77 ± 7.43(SD). Backward stepwise regression analysis was performed to determine which independent variables predict FR in older women.

Results.
Significant predictors of FR were: in model 1 – age and body mass (in 32%); in model 2 – knee extensor strength of the right lower limb (KEs R) (in 20%); in model 3 – the Timed up and Go test (TUG) (in 25.5%); and in model 4 – medial-lateral stability index with eyes open (MLSI EO) (in 35%). By means of backward stepwise regression analysis using the above models, the variables that significantly influence FR in seniors were body mass, MLSI EO, KEs, and age. The above analysis shows that these indicators (model 5) may predict FR in older women in 59% of cases.

Conclusions.
It was determined that variables that significantly influence FR in seniors were body mass, age, KEs, and MLSI EO. Research should be continued to identify more predictors and define norms that indicate FR.