bluuebunny/crossref_metadata_2025 huggingface dataset:
Qardh Implementation in Islamic Financial Institutions (LKS) and Advantage in Enterprise World
Authors: Ali Zezen Zainul , Wulandari Annisa , Radiamoda Anwar M
Published: May 2023

Abstrak: Kajian dalam artikel ini akan membahas implementasi qardhh dalam Lembaga Keuangan Syariah (LKS) yang mencakup pengertian, dasar hukum, ketentuan serta persyaratan terkait akad qardh serta manfaat. Kajian mengenai implementasi qardh di Lembaga Keuangan Syariah ini penting disajikan dengan alasan bahwa qardh merupakan suatu produk pembiayaan bank yang berasaskan atau memiliki prinsip untuk saling tolong menolong. Namun, jasa pembiayaan semacam ini kurang begitu populer di masyarakat. Tujuan artikel ini adalah untuk mempopulerkan akad qardh di tengah masyarakat, mempermudah dan melancarkan aktivitas ekonomi masyarakat dengan memaparkan konsep, implementasi dan manfaat dari qardh bagi para pelaku usaha. Penelitian ini menggunakan metode studi pustaka yakni dengan cara mengumpulkan berbagai sumber bacaan yang sesuai, lalu menggunakan analsisis deskriptif dengan mengidentifikasi dari berbagai sumber rujukan baik buku, jurnal dan website. Temuan dalam penelitian ini, menggambarkan secara jelas dan rinci praktik dari qardh pada Lembaga keuangan Syariah serta qadh dapat memberikan manfaat bagi pelaku usaha yakni adanya saling tolong menolong dan memberikan banyak manfaat.Abstrak: The study in this article will discuss the implementation of qardh in Islamic Financial Institutions (LKS) which includes the understanding, legal basis, provisions and requirements related to qardh contracts and benefits. This study on the implementation of qardh in Islamic financial institutions is important to present on the grounds that qardh is a bank financing product that is based on or has the principle of helping each other. However, this kind of financing service is less popular in the community. The purpose of this article is to popularize the qardh contract in the community, facilitate and expedite the community's economic activities by explaining the concept, implementation and benefits of qardh for business actors. This research uses the literature study method, namely by collecting various appropriate reading sources, then using descriptive analysis by identifying various reference sources, both books, journals and websites. The findings in this study describe clearly and in detail the practice of qardh in Islamic financial institutions and qadh can provide benefits for business actors, namely the existence of mutual help and providing many benefits.
Positive solutions for boundary value problems of a class of second-order differential equation system
Authors: Wang Dan , Li Yongxiang , Su Yi
Published: May 2023

This article discusses the existence of positive solutions for the system of second-order ordinary differential equation boundary value problems

−

u

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\left\{\begin{array}{l}-{u}^{^{\prime\prime} }\left(t)=f\left(t,u\left(t),v\left(t),u^{\prime} \left(t)),\hspace{1em}t\in \left[0,1],\\ -{v}^{^{\prime\prime} }\left(t)=g\left(t,u\left(t),v\left(t),v^{\prime} \left(t)),\hspace{1em}t\in \left[0,1],\\ u\left(0)=u\left(1)=0,\hspace{1em}v\left(0)=v\left(1)=0,\end{array}\right.

where

f
,
g
:

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1

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×

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+

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×
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→

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+

f,g:\left[0,1]\times {{\mathbb{R}}}^{+}\times {{\mathbb{R}}}^{+}\times {\mathbb{R}}\to {{\mathbb{R}}}^{+}

are continuous. Under the related conditions that the nonlinear terms

f

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t
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x
,
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,
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)

f\left(t,x,y,p)

and

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(

t
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g\left(t,x,y,q)

may be super-linear growth or sub-linear growth on

x
,
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,
p

x,y,p

, and

q

q

, we obtain the existence results of positive solutions. For the super-linear growth case, the Nagumo condition

(

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\left(F3)

is presented to restrict the growth of

f

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on

p

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and

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. The super-linear growth or sub-linear growth of the nonlinear terms

f

f

and

g

g

is described by related inequality conditions instead of the usual independent inequality conditions about

f

f

and

g

g

. The discussion is based on the fixed point index theory in cones.
Changes of microbiota level in urinary tract infections: A meta-analysis
Authors: Weng Xia , Liu Yajun , Hu Haiping , Wang Meichai , Huang Xiaoqin
Published: May 2023

No consensus has been reached on the dysbiosis signs of microbiota in patients with urinary tract infections (UTIs). This meta-analysis aimed to verify the relationship between microbiota levels and UTIs. PubMed, Web of Science, and Embase databases were retrieved for related articles published from inception until October 20, 2021. The standardized mean difference (SMD) and its related 95% confidence intervals (CIs) of the microbiota diversity and abundance were pooled under a random-effects model. Twelve studies were included in this meta-analysis. The pooled analysis revealed that the microbiota diversity was lower in patients with UTIs than in healthy individuals (SMD = −0.655, 95% CI = −1.290, −0.021, I
2 = 81.0%, P = 0.043). The abundance of specific bacteria was higher in UTI subjects compared with healthy control individuals (SMD = 0.41, 95% CI = 0.07–0.74, P = 0.017), especially in North America patients with UTIs. Similar results were also found in studies with the total sample size being greater than 30. Importantly, Escherichia coli levels were increased in patients with UTI, whereas Lactobacillus levels decreased. E. coli and Lactobacilli have huge prospects as potential microbiota markers in the treatment of UTIs.
Fehlerquellen und Wiederaufnahme im Strafverfahren – Eine bundesweite Untersuchung der Rechtspraxis bei Wiederaufnahmeverfahren nach rechtskräftigen Entscheidungen
Authors: Bliesener Thomas , Altenhain Karsten , Kilian Franziska , Leve Mona , Neumann Merten , Otzipka Jana , Penther Erik , Volbert Renate
Published: May 2023

Die Studie untersucht den Verfahrensgang von Wiederaufnahmeverfahren in Strafsachen, die Fehlerquellen, die Chancen Verurteilter bei der Geltendmachung von Fehlern und die Reaktionen der Wiederaufnahmegerichte auf Wiederaufnahmeanträge. Dazu wurden die Akten von 512 erfolgreichen und nicht erfolgreichen Wiederaufnahmeverfahren der Jahre 2013-2015 aus 14 Bundesländern analysiert. Die Wiederaufnahmeanträge werden etwa zu gleichen Anteilen von der Verteidigung und der Staatsanwaltschaft gestellt, wobei auch bei letzterer die Anträge zugunsten des Verurteilten deutlich überwiegen. Der Anteil angenommener Wiederaufnahmeanträge fällt mit insgesamt 44,7 % höher aus als in der Literatur bisher vermutet und erreicht bei Anträgen der Staatsanwaltschaft sogar 91,6 %. In knapp 40 % der Wiederaufnahmeverfahren wurde vom Wiederaufnahmegericht ein Fehler im Ausgangsverfahren festgestellt, darunter in mehr als einem Drittel auf Ebene der Tatbestandserfüllung (zu je einem Viertel falsche Aussagen bzw. Personenverwechslungen), bei einem weiteren Drittel auf Ebene der Schuld (fast ausschließlich Schuldunfähigkeit gem. § 20 StGB), und bei einem knappen Drittel der Fälle auf Ebene der Prozessvoraussetzungen bzw. der Rechtsfolgen (zu mehr als der Hälfte eine fehlerhafte Gesamtstrafenbildung). Die Analyse zeigt weiter, dass im Strafbefehlsverfahren durch eine oberflächliche Ermittlung oder eine flüchtige Prüfung der aktenkundigen Sachlage Fehler drohen.
Inactivation of CACNA1H induces cell apoptosis by initiating endoplasmic reticulum stress in glioma
Authors: Liu Sheng , Ba Ying , Li Chenglong , Xu Guangming
Published: May 2023

Background

Ca2+ channels are abnormally expressed in various tumor cells and are involved in the progression of human glioma. Here, we explored the role of a calcium channel, voltage-dependent, T-type, alpha 1H subunit (CACNA1H), which encodes T-type Ca2+ channel Cav3.2 in glioma cells.

Methods

Cell viability and apoptosis were detected using cell-counting kit-8 and flow cytometry, respectively. The expression of target protein was determined using western blot analysis.

Results

Cell viability of U251 cells was inhibited significantly after the knockdown of CACNA1H. The apoptosis of U251 cells was enhanced significantly after the knockdown of CACNA1H. Importantly, knockdown of CACNA1H decreased the levels of p-PERK, GRP78, CHOP, and ATF6, indicating that CACNA1H knockdown activated endoplasmic reticulum stress (ERS) in U251 cells. In addition, T-type Ca2+ channel inhibitor NNC55-0396 also induced apoptosis through the activation of ERS in U251 cells. ERS inhibitor UR906 could block CACNA1H inhibitor ABT-639-induced apoptosis.

Conclusion

Suppression of CACNA1H activated the ERS and thus induced apoptosis in glioma cells. T-type Ca2+ channel inhibitors ABT-639 and NNC55-0396 also induced apoptosis through ERS in glioma cells. Our data highlighted the effect of CACNA1H as an oncogenic gene in human glioma.
SOCSs: important regulators of host cell susceptibility or resistance to viral infection
Authors: Zhang Xin , Xia Hengchuan , Wang Qian , Cui Miao , Zhang Cong , Wang Qiang , Liu Xiaoyong , Chen Keping
Published: May 2023

Suppressors of cytokine signaling (SOCSs) are implicated in viral infection and host antiviral innate immune response. Recent studies demonstrate that viruses can hijack SOCSs to inhibit Janus kinase-signal transducers and activators of transcription (JAK-STAT) pathway, block the production and signaling of interferons (IFNs). At the same time, viruses can hijack SOCS to regulate non-IFN factors to evade antiviral response. Host cells can also regulate SOCSs to resist viral infection. The competition of the control of SOCSs may largely determine the fate of viral infection and the susceptibility or resistance of host cells, which is of significance for development of novel antiviral therapies targeting SOCSs. Accumulating evidence reveal that the regulation and function of SOCSs by viruses and host cells are very complicated, which is determined by characteristics of both viruses and host cell types. This report presents a systematic review to evaluate the roles of SOCSs in viral infection and host antiviral responses. One of messages worth attention is that all eight SOCS members should be investigated to accurately characterize their roles and relative contribution in each viral infection, which may help identify the most effective SOCS to be used in “individualized” antiviral therapy.
Evaluating the Performance and Fume Suppression Effect of Tourmaline-Modified Asphalt
Authors: Li Ping , Chen Xiule , Wang Meng , Nian Tengfei
Published: May 2023

This study prepared samples of fume-suppressing asphalt to improve the eco-friendly characteristics of pavement construction. Various quantities and mesh sizes of tourmaline powder were used in modified asphalt samples. The conventional performance test, multiple stress creep recovery test, linear amplitude sweep test, and bending beam rheometer test were used to analyze the asphalt’s properties at high, medium, and low temperatures, and the fume suppression effect was evaluated using a homemade asphalt fume generation and enrichment device. The study’s results indicate that as the mesh size and quantity increased, the penetration of the modified asphalt decreased, the softening point increased, and ductility first increased before decreasing. The larger the mesh size and tourmaline quantity, the better the improvement effect of the tourmaline powder on the asphalt’s high- and low-temperature performance. Tourmaline powder has a good inhibitory effect on the release of asphalt fume, and when the quantity of tourmaline powder at 800 mesh and 1250 mesh exceeded 16 % of the base asphalt, the change rate significantly influenced the fume suppression rate. Overall, the influence of tourmaline powder on the performance and fume suppression of asphalt was highest when the quantity was 14 % with 1250 mesh.
Dual Roles for Nucleus Accumbens Core Dopamine D1-Expressing Neurons Projecting to the Substantia Nigra Pars Reticulata in Limbic and Motor Control in Male Mice
Authors: Attachaipanich Suthinee , Ozawa Takaaki , Macpherson Tom , Hikida Takatoshi
Published: May 2023

The nucleus accumbens (NAc) is a critical component of a limbic basal ganglia circuit that is thought to play an important role in decision-making and the processing of rewarding stimuli. As part of this circuit, dopamine D1 receptor-expressing medium spiny neurons (D1-MSNs) of the NAc core are known to send a major projection to the substantia nigra pars reticulata (SNr). However, the functional role of this SNr-projecting NAc D1-MSN (NAcD1-MSN–SNr) pathway is still largely uncharacterized. Moreover, as the SNr is thought to belong to both limbic and motor information-processing basal ganglia loops, it is possible that the NAcD1-MSN–SNr pathway may be able to influence both limbic and motor functions. In this study, we investigated the effect of optogenetic manipulation of the NAcD1-MSN–SNr pathway on reward-learning and locomotor behavior in male mice. Stimulation of the axon terminals of NAc core D1-MSNs in the SNr induced a preference for a laser-paired location, self-stimulation via a laser-paired lever, and augmented instrumental responding for a liquid reward-paired lever. Additionally, stimulation was observed to increase locomotor behavior when delivered bilaterally and induced contralateral turning behavior when delivered unilaterally. However, interestingly, inhibition of this pathway did not alter either reward-related behaviors or locomotion. These findings indicate that the NAcD1-MSN–SNr pathway is able to control both reward learning and motor behaviors.
The role of Graves’ disease in the development of thyroid nodules and thyroid cancer
Authors: Soares Marta Nascimento , Borges-Canha Marta , Neves Celestino , Neves João Sérgio , Carvalho Davide
Published: May 2023

Aim

The prevalence of thyroid nodules and the risk of thyroid cancer in patients with Graves’ disease is uncertain. We aimed to evaluate the prevalence of thyroid nodules and cancer in patients with Graves’ disease.

Methods

Retrospective observational study of adult subjects with Graves' disease (positive autoantibodies thyrotropin receptor antibodies (TRAbs)) between 2017 and 2021 at our center was done. We evaluated the prevalence of thyroid nodules and cancer in this population and characterized the predictive factors for thyroid malignancy using linear and logistic regression models.

Results

We evaluated a total of 539 patients with Graves' disease during a median follow-up of 3.3 years (25th–75th percentiles 1.5–5.2 years). Fifty-three percent had thyroid nodules and 18 (3.3%) were diagnosed with thyroid cancer (12 papillary microcarcinomas). All tumors were classified using TNM classification as T1, and only one had lymph node metastasis; there were no recordings of distant metastasis. Sex, age, body mass index, smoking, TSH, and TRAbs levels were not significantly different between patients with and without thyroid cancer. Patients with multiple nodules on ultrasound (OR 1.61, 95%CI 1.04–2.49) and with larger nodules (OR 2.96, 95%CI 1.08–8.14, for 10 mm increase in size) had a greater risk of thyroid cancer diagnosis.

Conclusion

Patients with Graves’ disease had a high prevalence of thyroid nodules and their nodules had a significant risk of thyroid cancer. The risk was higher in those with multiple and larger nodules. Most had low-grade papillary thyroid cancer. More studies are needed to clarify the clinical relevance of these findings.
Reasons for Coronary Artery Bypass Graft Rejection: Patients’ and Surgeons’ Perspectives
Authors: Low Yi Hua , Sng Gerald Gui Ren , Koh Samuel Ji Quan , Yap Jonathan Jiunn Liang , Lau Yee How , Tan Danielle Yi Ting , Jiang Yilin , Sin Kenny Yoong Kong , Yeo Khung Keong
Published: May 2023

Background: Studies have shown improved outcomes following coronary artery bypass grafting (CABG) as compared to percutaneous coronary intervention (PCI) in patients who have left main or multivessel disease or diabetes with concomitant multivessel disease. However, there are various factors influencing the patient’s decision to have surgery. This study aims to elucidate the reasons why some patients with indications for the procedure do not eventually receive CABG. Methods: Cases from a single tertiary referral centre were retrospectively examined and indicated patients who did not undergo CABG were included in this study. The main reasons for not undergoing CABG were identified and classified into sub-themes. The risk of CABG quoted by surgeons during surgical consultation was categorised into high or non-high and compared against the patient’s EuroSCORE II. Subjective risk perception was compared with objective measurements to evaluate if subjective risk perception correlated with objective measurements. Results: A total of 301 cases were reviewed and 127 cases were finally included. Patient choice was the most common reason for not undergoing CABG, followed by surgical reasons, then medical reasons. The most common sub-theme of reasons to not proceed given by patients was fear of the procedure (52%), followed by age (15%). The most common surgeon subtheme was perceived high risk for stroke or mortality (59%). Among the patients quoted as being at high risk by surgeons, only 6% had a high EuroSCORE II and 71% had a low EuroSCORE II. Conclusion: Pertinent patient and surgical reasons for declining CABG were identified. Identifying the reasons why patients indicated for CABG declined the procedure can inform and guide patient counselling. The disparity between subjective and objective risk scores suggests that surgeons’ estimation of risk incorporates factors not captured in objective risk scores, which is an area for future studies.
Effects of pH, sodium chloride, and temperature on the growth of Listeria monocytogenes biofilms
Authors: Labidi S. , Jánosity A. , Yakdhane A. , Yakdhane E. , Surányi B. , Mohácsi-Farkas Cs. , Kiskó G.
Published: May 2023

Listeria monocytogenes is able to form biofilms on food contact surfaces. Effectiveness of salt concentration, pH, and temperature on the formation of L. monocytogenes biofilms was evaluated individually and in combinations using microtiter plate assay by measuring the optical density. The tested strains differed in their biofilm formation (low, moderate, and strong) ability. At 37 °C, decreasing amounts of biofilms was observed in almost all L. monocytogenes strains when the NaCl concentration increased from 0.05 to 15%, but all strains were able to form biofilm even at 1 °C. There was no significant difference in biofilm formation between pH 4, 5, and 6, except for some strains. When stress conditions were tested in combination, the addition of 15% NaCl significantly inhibited the growth of L. monocytogenes at 1 °C and 4 °C, and the weak biofilm-forming strains were less sensitive to the temperature and to NaCl treatments than the strong biofilm-forming strains. These results enhance our knowledge of the application of NaCl, temperature, and pH stresses in the food industry and provide basis to develop new strategies for control of biofilm formation of this pathogen.
Dasatinib and quercetin increase testosterone and sperm concentration in mice
Authors: Garcia Driele N. , Hense Jéssica D. , Zanini Bianka M. , Isola José V. V. , Pradiee Jorgea , Prosczek Juliane B. , Alvarado-Rincón Joao A. , Mondadori Rafael G. , Mason Jeffrey B. , Brieño-Enríquez Miguel A. , Barros Carlos C. , Stout Michael B. , Masternak Michal M. , Schneider Augusto
Published: May 2023

Cellular senescence is a defense mechanism to arrest proliferation of damaged cells. The number of senescent cells increases with age in different tissues and contributes to the development of age-related diseases. Old mice treated with senolytics drugs, dasatinib and quercetin (D+Q), have reduced senescent cells burden. The aim of this study was to evaluate the effects of D+Q on testicular function and fertility of male mice. Mice (n = 9/group) received D (5 mg kg−1) and Q (50 mg kg−1) via gavage every moth for three consecutive days from 3 to 8 months of age. At 8 months mice were breed with young non-treated females and euthanized. The treatment of male mice with D+Q increased serum testosterone levels and sperm concentration and decreased abnormal sperm morphology. Sperm motility, seminiferous tubule morphometry, testicular gene expression and fertility were not affected by treatment. There was no effect of D+Q treatment in β-galactosidase activity and in lipofuscin staining in testes. D+Q treatment also did not affect body mass gain and testes mass. In conclusion, D+Q treatment increased serum testosterone levels and sperm concentration and decreased abnormal sperm morphology, however did not affect fertility. Further studies with older mice and different senolytics are necessary to elucidate the effects in the decline of sperm output (quality and quantity) associated with aging.
Multimodality in PPA
Authors: Lindeberg Sophia , Müller Nicole , Samuelsson Christina
Published: May 2023

Purpose: In primary progressive aphasia (PPA), multimodal means may gradually become more important in conversations. In this study, the aim was to investigate the functions of hand movements of a man with PPA. Method: Peter and Karen participated in this study. Peter was diagnosed with nonfluent PPA two years prior to data collection. Casual conversation and cognitive and linguistic testing were audio- and video-recorded. Analyses were informed by multimodal interaction analytical approaches. Results: The results showed that Peter's opportunities to engage in conversations were enabled within a co-operative framework, where Peter would contribute within a predetermined slot using a variety of multimodal resources to, for example, organize turn-taking or repair difficulties relating to verbal output. Discussion and conclusions: Studying multimodal resources across tasks may reveal important features of the ways in which persons with communicative impairment adjust to different contexts. In clinical settings, multimodal resources need to be viewed as multi-layered actions rather than as isolated contributions.
MISSION IS AS SCIENCE (THE ARTICLE IS DEDICATED TO 90-TH ANNIVERSARY OF THE ACTIVITIES OF ACADEMICIAN N. G. BONDAR)
Authors: Skladanovska M. H. , Raspopov O. S. , Rykina V. L.
Published: May 2023

The creative life as well as the scientific and pedagogical activities of Academician of the National Academy of Sciences of Ukraine N. G. Bondar are described in the article.
FORECASTING OF TEMPERATURE TENSIONS IN FACADE BEAMS OF BRIDGE CONSTRUCTIONS
Authors: Bezbabicheva O. I. , Bilchenko A. V. , Kyslov A. H.
Published: May 2023

The order of computation of the temperature fields and tensions in the facade beams of bridge constructions on the basis of data of the real measurements of temperature distribution is offered.
PREDICTION MODEL LIFE CONCRETE SPAN HIGHWAY BRIDGES
Authors: Borodai D. I.
Published: May 2023

The general problem of bridge reinforced concrete elements durability is formulated. The research problem is formulated. The model of estimation of bridge reinforced concrete elements resource on a design stage is offered. It enables us to predict the resource as a function of time in dependence on physical-and-mechanical properties of concrete and reinforcement, type of structures, and operation conditions. Some numerical examples of durability determination according to the model offered are presented. The results of research are analyzed. Open questions are brought for discussion.
BENDING BEAMS INTERCONNECTED BY RESILIENT CONNECTIONS AND LYING ON RESILIENT FOUNDATION
Authors: Brynza A. O.
Published: May 2023

The bend of beams interconnected by resilient connections and lying on resilient foundation is considered. The method suggested in works by V. A. Lazaryan and S. I. Konashenko is used in the calculation. It is based on application of the generalized functions.
DEFINITION OF FREQUENCY AND FORMS OF FREE VIBRATIONS OF THE FOOTBRIDE
Authors: Vatulia H. L.
Published: May 2023

In the paper the issues of obtaining the rational structure of statically indeterminate steel concrete trussed beam of a foot bridge are described. The tie rod insertion is very efficient in increasing of the structure’s carrying capacity, rigidity and (in many cases) economy.
RECONSTRUCTION AND REINFORCEMENT OF BRIDGE ACROSS THE RIVER. SYLVA IN KUNGUR, RUSSIA
Authors: Heizn R. Ye. , Timofieiev M. R.
Published: May 2023

Sylva Bridge at Kungur city is one of the oldest road bridges in Perm region, the West Urals, Russia. Its erection was begun in 1912 and was interrupted with the First World War and the further events in Russia. The bridge was opened only in 1931. For 75 years of bridge operation the most part of bridge constructions has been acquired plural damages, both mechanical and corrosion. After the bridge inspection in 2003 and according to the calculations of its capacity, the decision on reconstruction of the bridge was accepted. The purpose of rehabilitation was to replace the timber deck by steel orthotropic deck with asphalt pavement. A new deck was to be engaged in combined action with the existing metal structures with the help of socles with high-strength bolts. Due to this, the bridge carrying capacity was increased as required by the present standards. In 2006, after tests, the bridge was opened for traffic.
APPLICATION OF INFORMATION TECHNOLOGY FOR MONITORING OF BRIDGES CONSTRUCTIONS
Authors: Hulytska L. V. , Korol E. A. , Shymanska O. S.
Published: May 2023

The article is dealt with а variant of usage of database technologies in the transport communication sphere, particularly for introduction of integrated methodology of evaluation of technical-and-operational condition of bridge structures on highways of general use.
AN ECONOMIC-AND-MATHEMATICAL MODEL OF OPENING PARAMETERS OF PREPARATION WORKS
Authors: Vahonova A. H. , Jerokhondyna T. A. , Shashenko O. O.
Published: May 2023

We propose an economic-and-mathematical model of opening and preparation of mine field based on the graph theory. The model is optimized by the factor of minimum amounts of conducting the preparation underground works.
RESEARCHING FORMS OF NATURAL OSCILLATIONS OF THE SCHEME ON THE FREQUENCY OF BRIDGE SPAN STRUCTURES
Authors: Zhelezniak H. S. , Soldatov K. I.
Published: May 2023

In this paper on the example of continuous spans of bridges the asymmetry influence of the scheme on the frequency and forms of natural oscillations is investigated. It is shown that under certain span lengths of regular schemes the use of them to determine the span frequencies is possible.
EXPERIMENTAL STUDIES OF WALL GIRDERS IN DIFFERENT TYPES OF BRIDGE DECK
Authors: Zakora O. L. , Lynnyk H. O. , Marochka V. V.
Published: May 2023

The results of experimental studies of wall girders under live load are given in the paper. These studies were conducted in several stages with different types of the bridge floor.
THE BUILDING PROJECT FOR CAR TRESTLE AS A PART OF THE TERMINAL COMPLEX AT INTERNATIONAL AIRPORT “BORISPOL”
Authors: Zorkin Yu. S. , Lozitskiy V. M.
Published: May 2023

In the article it is presented the basic content of construction project for car trestle as a part of the terminal complex at international airport «Borispol» worked out by the State Enterprise «The research and design institute of transport construction «Kievgiprotrans» in accordance with the specifications approved by the Representative Office of «Догуш Иншаат Ве Тиджарет Аноним Ширкети» and with the project estimate documentation.
THE STUDY OF WATER RESISTANCE OF THE SOIL-CEMENT
Authors: Zocenko M. L. , Nalyvajko O. I. , Lartseva I. I. , Panko O. M.
Published: May 2023

The study of watertightness of the soil cement by speed-up method for air permeability determination by means of the ВВ-2 device («Аgamа» type) is presented in this article. The coefficient of softening is also determined.
NORMALIZATION OF THE DESIGN AND CONSTRUCTION OF BUILDINGS OF CORRUGATED METAL STRUCTURES
Authors: Koval P. M. , Babyak I. P. , Sitdyikova T. M.
Published: May 2023

In the paper the exposition of metal corrugated constructions is given. The special attention is paid to the normalization and related features. The questions, which can be solved by the operating norms, are specified.
RESEARCHES OF CONCRETE FRACTURE STRENGTH OF THE BEAMS BY TYPE "3 BET-90" AND "3 BET-120"
Authors: Koval P. M. , Stoyanovich S. V.
Published: May 2023

In the article the designs of new bridge reinforced concrete beams «3 Bet-90» and «3 Bet-120» 18…33 m long are given. Their main technical characteristics are presented. The fracture strength of the beams under action of live loadings is analyzed.
THE NON-LINEAR INTERACTION OF BRIDGES CONSTRUCTIONS AND THEIR INFRASTRUCTURE WITH FOUNDATION OF DISCRETE FLEXIBLE LANDING OF COMMON VIEW FOR EXAMPLE: CALCULATIONS, EXPERIMENTS AND DYING OUT VIBRATIONS
Authors: Kulyabko V. V.
Published: May 2023

In the article the issues of increasing the possibilities of computer modeling of the dynamic interaction of bridge constructions and their infrastructure with moving transport and flows are considered.
DETERMINE THE STRAIN - STRESS STATE OF OVERPASS WITH INCLUDING SPATIAL WORK
Authors: Medvedev K. V. , Malgin M. H.
Published: May 2023

In the article the analysis of design models used for the determination of efforts for elements of an automobile bridge trestle is carried out. The curvilinear rod, linear rod, and volume models are considered as design ones. Cases of spatial work of the structure are considered at different variants of loading.
PROVIDING SERVICEABILITY OF STRUCTURAL BEARING TYPES FOR ROADWAY BRIDGES
Authors: Polyuga R. I.
Published: May 2023

In the article the description of structural bearing types for roadway bridges and their classification is given. Special attention is paid to effective bearings with elastomeric materials – rubber, pot, spherical ones. Characteristic defects of structural bearings and demands of serviceability are noticed.
THE STUDY OF THE INFLUENCE OF THE DEFORMATION CHARACTERISTICS OF THE LAYER OF REINFORCEMENT ON SSS RAILWAY EMBANKMENT AT THE ENTRANCE TO THE BRIDGE CROSSING
Authors: Petrenko V. D. , Huzchenko V. T. , Alkhdour A. M. M.
Published: May 2023

In the article the results of influence of deformation descriptions of strengthening layer on the tensed-anddeformed state of railway embankment are presented. The comparative FEM analysis has allowed finding out that such type of strengthening has no positive effect.
THE SIMULATION DIAGNOSTIC METHODS AND REGENERATION WAYS OF REINFORCED - CONCRETE CONSTRUCTIONS OF BRIDGES IN PROVIDING THEIR OPERATING RELIABILITY AND LONGEVITY
Authors: Savchinskiy B. V.
Published: May 2023

On the basis of analysis of existing diagnostic methods and regeneration ways of reinforced-concrete constructions of bridges the recommendations on introduction of new modern technologies of renewal of reinforced-concrete constructions of bridges in providing their operating reliability and longevity are offered.
PROBLEMS ARE CAUSED TO CHANGE TYPICAL TEMPORARY LOADS AC FOR BRIDGES CONSTRUCTIONS
Authors: Salamakhin P. M.
Published: May 2023

The article is devoted to the analysis of new temporal normative loads of high-way bridges, the determination of dynamic coefficient and the problems of the using these loads in calculation of endurance and determination of remaining resource of elements of bridge structures.
THE MODERN DECISIONS ABOUT CONSTRUCTIONS OF BRIDGE FLOOR
Authors: Sakharova I. D.
Published: May 2023

The paper is dealt with the changes introduced into the code of regulations «Bridges and pipes» developed as alternative to SNiP 2.05.03-84* related to the bridge floor of bridge structures: the possibility of refusing sidewalks, the change in road and sidewalk cross falls, the building of road pavement structures with the placement of asphalt concrete coating over waterproofing, and the drainage system construction.
INTRODUCTION THE NEW WELDING TECHNOLOGIES AND MATERIALS FOR WELDING ROLLED METAL BY HIGHER DURABILITY
Authors: Synieok O. H. , Herasymenko A. M. , Riabokon V. D. , Riabtsev K. V. , Korzin K. Yu. , Zdorenko O. V.
Published: May 2023

Welding materials, which are as a rule used for making the responsible metal constructions, do not always meet the high indices of rolled steel properties of durability classes С355-490 MPa. In the paper the research results of application of welding materials produced by the firm «ESAB» for the automatic flux welding of rolled steel 06Г2Б ТУ В 27.1-05416923-085:2006 are presented.
THE RUBBER REINFORCED SUPPORT PARTS FOR COMPLEITING DYNAMICS AND QUIESCENT LOADS OF BRIDGE CONSTRUCTIONS
Authors: Skokov O. I. , Dyachenko O. H. , Volovschikova V. V. , Khorolsky M. S.
Published: May 2023

The research of deformation characteristics of the rubber reinforced support parts (RRBP), which compensate static and dynamic loadings of elements of bridge constructions, is conducted. The technology for manufacturing RRBP using new materials is developed; their deformation characteristics are investigated with the purpose of determination of the predicted operation life.
METHOD OF DETERMINATION OF DIFFERENT STAGES OF CORROSION PROCESSES IN REINFORCED CONCRETE STRUCTURES ACCORDING TO SIGNALS AE
Authors: Stashuk P. M.
Published: May 2023

The article describes the research of electrochemical corrosion of reinforcement concrete samples using the method of acoustic emission. The task of research was to identify patterns of acoustic emission signals depending on the mechanism of reinforcement corrosion. Тhe basic research results are outlined. As evaluation criteria for the selection of different stages of corrosion processes in reinforced concrete structures the usage of histograms of acoustic emission parameter Kр is proposed.
THE DISPERSION AREA IN THE STRINGED CONCRETE SQUARED BEAMS OF SWITCHES
Authors: Sychovski M.
Published: May 2023

The applied variants for determination of distribution of tensions in prestressed elements are presented. The author’s method for determination of area of distribution of tensions in the stringed concrete squared beams of switches is suggested.
DETERMINATION OF EXTREME NORMAL TENSIONS IN THE SQUARED BEAMS OF AWITCHES
Authors: Sychovski M.
Published: May 2023

The method of estimation of extreme normal tensions in the squared beams of switches for the extreme charts of loadings is presented.
INDICATORS OF QUALITY OF ELECTRIC ENERGY IN THE ELECTRIC TRACTION DC
Authors: Petrov A. V.
Published: May 2023

The research results showing an opportunity to use a power quality rating in a system of direct current electric traction on a traction substation input and output are stated. It is demonstrated that these ratings essentially simplify the quality analysis of power coming into traction circuits.
THE PLAN OF THE RAILWAY TRACK, THE PROBLEM OF ITS CAPTURE, CALCULATION AND IMPLEMENTATION
Authors: Korzhenevych I. P. , Suslov O. O. , Toropov B. I.
Published: May 2023

The modern problems of plan of railway track from survey to realization of project are considered and the directions of their solution are offered.
The influence of power stator windings of the asynchronous traction motors for dynamic workload elements of traction drive locomotive
Authors: Bondarev O. M.
Published: May 2023

The results of studies on determination of loading level of tractive drive elements in some operating conditions, when the values of frequencies of the change of feeding currents of stator windings are to be obtained in both subcritical and ultracritical zones for two types of the tractive gear are presented in the paper.
ANALYSIS OF THE IMPACT OF THE OPERATIONAL FORMATION TWO GROUP TRAINS ON THE INDIVIDUAL PERFORMANCE OF THE WORK
Authors: Bozhko M. P. , Mazurenko O. O.
Published: May 2023

The research of operative management by the organization of wagon flows in trains on a railway direction is executed. It is proved the expediency of introduction of a rational combination of formation of single-unit trains and two-unit trains with the purpose of acceleration of delivery of cargoes. The duration of planning period is offered as a condition for decision-making on determination of category of a separate train. The economic effect of introduction of operative management is obtained.
DATA OF A HUMP YARDS AND FACTORS AFFECTING ON THEM
Authors: Zhuravel V. V.
Published: May 2023

A kind of regression equations, which adequately describe the correlation between the error of braking of cuts, the slope of hump-yard tracks and the indices of hump yard work taking into account the influence of parameters of wagon stream processed, is determined.
ON THE INTERRELATIONSHIP OF STRUCTURAL CHANGES DURING FATIGUE OF CARBON STEEL WITH THE STRUCTURAL FEATURES OF THE FRACTURE SURFACES
Authors: Vakulenko I. O.
Published: May 2023

For the rail axle steel the regular changes of structure during the fatigue test in dependence on strength amplitude are presented.
The information model for the analysis of plant processes on the computer
Authors: Korobjova R. H.
Published: May 2023

The information model structure for the technical and operational analysis of railway stations is presented in the article. The model reflects the technological process of stations in the schedule form and can be used as a component of functional simulation software for railway stations.
Layout solutions for organizational and technological structures promising car-repair depot with flexible asynchronous streams of cars repair
Authors: Myamlin V. V.
Published: May 2023

The disadvantages of traditional fixed production lines for repair of wagons are pointed out. The advantages of flexible asynchronous wagon-repair stream are shown. Various configuration decisions of the organization-andtechnological structures allowing the realization of these streams are presented. Some special terms of wagon-repair production are refined.
Technical means of mechanization and automatization of the sorting process at the hump yards
Authors: Taranets O. I.
Published: May 2023

The history of development of working technology and technical equipment of the marshalling devices for reclassification of wagons at Ukrainian and foreign railway stations is analyzed. The description of modern automated systems of managing the process of breaking-up trains is presented. The necessity of preliminary estimation of automation for the marshalling complex is indicated.
A new scheme for motor protection compressor trains series ER2
Authors: Dubynets L. V. , Krasnov R. V. , Ustymenko D. V. , Zatolokin P. M.
Published: May 2023

The new scheme of protection of the engine ДК 409 (ДК 406) of the compressor (ЭК 7Б) on electric trains of series ЭР2 is offered. Such a scheme provides accurate and reliable protection of the electric machine, unites in itself the protection functions both under overloads with long-term currents and in case of short-circuit.
The impact of the increased voltage in the catenary constant current by the amount of energy losses
Authors: Mukha A. M. , Baliichuk O. Yu.
Published: May 2023

In the article the results of study of the influence of rising the voltage in DC contact network on the value of losses in this contact network are presented. The calculations are executed with use of traditional commonly accepted techniques.
Unproductive electric losses in the traction power of DC supply system
Authors: Petrov A. V. , Kostin M. O.
Published: May 2023

The research results specifying to the consumption of inactive (reactive by Fryze) power in a DC system of electric propulsion are stated in the article. It is shown that this consumption brings to considerable additional losses of electric energy in the system.
Improving of the humps safety
Authors: Rybalka R. V.
Published: May 2023

It is offered to improve the functioning safety of hump yards by means of a solution of problem of checking the tracks occupancy using the spectra correction method.
The local laser-stimulated electrodeposition of the nickel
Authors: Zabludovskyi V. A. , Dudkina V. V.
Published: May 2023

The mask-free method for obtaining the local nickel coatings using laser radiation is developed. The parameters of local nickel coatings are calculated. The rate of electroplating process is estimated.
Economic evaluation of activities on introduction of the tread surface new profiles of the railway rolling stock wheels
Authors: Blokhina A. S.
Published: May 2023

On the example of comparison of two types of profiles an application of the method of economical assessment of a technical project is demonstrated.
The consideration of the mechanism of reducing the shadow economy of Ukraine
Authors: Bobul V. V.
Published: May 2023

In the paper the level of corruption and shadow sector of economy is investigated, the basic causes of «shadowing » and international experience on struggle with «washing up» of financial means are considered, and the recommendations for destruction of shadow economy are given.
DETERMINATION OF ECONOMIC EFFICIENCY OF CARRIAGE-PLATFORMS USE OF SECTION TYPE
Authors: Bubnov V. M. , Myamlin S. V. , Hurzhy N. L.
Published: May 2023

The article is devoted the comparative analysis of charges for the complete life cycle of 80-foot carriageplatform and carriage-platform of sectional type on the example of two models of carriages-platforms for the containers produced by JSC “Azovmash”. The indexes of comparative efficiency are examined from a viewpoint of company-operator of railway freight transportations – a potential proprietor of carriages-platforms.
COMPUTER TRANSFORMATION A SOLID REGULAR POLYHEDRONS ( PLATO''S FIGURES) IN AUTOCAD SYSTEM TETRAHEDRON
Authors: P. V. Bezditko  , A. V. Krasnyuk  , A. D. Malyi  , N. P. Bocharova
Published: May 2023

In the article the technologies of transformation of a perfect polyhedron (tetrahedron) into semi-perfect one, starlike and imperfect polyhedrons by the methods of computer graphics are presented. The authors have concluded that such transformations of solid models of polyhedrons are most expedient from the known ones in descriptive geometry and engineering graphics.
REFORMING THE RAILWAY TRANSPORT IN COUNTRIES OF THE FORMER USSR
Authors: Yu. S. Barash
Published: May 2023

The article is devoted to analysis of reforming the railway transport in countries of the former USSR. Demerits and advantages of this process are determined.
MANAGE OF TRANSPORTED RESOURCES OF PASSENGER COMPLEX OF UKRAINIAN RAILWAYS
Authors: I. M. Aksonov
Published: May 2023

New indices for estimation of the passenger coach stock operation of different owners in various communication kinds are offered.
DETERMINATION OF RESIDUAL STRESSES IN SEMI-FINISHED AXLES FOR RAILWAY ROLLING STOCK
Authors: O. M. Bondarev  , V. L. Gorobets  , S. V. Myamlin  , E. O. Pysmennyi  , I. E. Skogarev  , D. V. Ghorobets
Published: May 2023

In the article the analysis of comparative tests on determination of remaining tensions in the semitreated axles produced according to different technologies is conducted and the conclusions re. availability and stability of the new production technology for semitreated axles are done.
DETERMINATION OF POSSIBILITIES EXPLOITATION TERMS REVISION TANK MODELS 15-440 AND 15-1597
Authors: O. V. Shatunov  , M. A. Grichanyj  , P. O. Yahoda  , V. Yu. Pidlubnyi  , O. A. Andreev
Published: May 2023

In the article the results of theoretical and experimental researches of the stressed state of structure of frame and body of tank models 15-440 and 15-1597 are presented.
THE ADAPTIVE SYSTEM OF CAR TRAFFIC VOLUME ORGANIZATION
Authors: S. V. Doroshko
Published: May 2023

The adaptive system of the organisation of car traffic volumes, which in the conditions of non-uniformity of the traffic volume capacity and transport demand is one of measures of increasing the efficiency of transportations and acceleration of a car turn owing to the reduction of idle time of cars under accumulation and increase of level of the transit car traffic volume at technical stations is offered.
THE DEFINITION OF RATIONAL ALLOCATION OF TRAIN-FLOWS ON THE RAIL NETWORK
Authors: D. M. Kurgan  , M. A. Zayats
Published: May 2023

A technique of rational distribution of train traffic streams on the system of railways by a few indices is presented.
ANALYSIS OF DEVIATIONS IN TRACK WIDTH AND DIRECTION IN THE PLAN WITHIN THE LATERAL DIRECTION SWITCHES ON THE CRITERIA OF SAFETY AND IMPACT ON THE PATH
Authors: V. V. Rybkin  , K. L. Kalenyk
Published: May 2023

The paper analyzes the impact of deviations in terms of lateral turnouts for traffic safety and the magnitude of lateral force. The results of performance studies of these deviations are presented. The preconditions for rationing the permissible traffic speeds on the lateral turnout of switches are substantiated.
THE APPLICATION OF GRAPH THEORY AND AUTOMATA TO SOLVE DYNAMICS PROBLEMS STEINEBACH SYSTEM
Authors: O. S. Raspopov
Published: May 2023

On the basis of conducted analysis of scientific literature it is noted that the theorems and algorithms used in theories of graphs and automata can serve as a basis for the refinement and development of generally accepted theories and methods in the mechanics of beam systems.
DETERMINE OF ACCESSIBLE TRAFFIC WAYS OF TRAINS IN THE RAIL NETWORK
Authors: A. A. Bosov  , Yu. V. Chibisov
Published: May 2023

There was suggested the use of multigraphs in the rational distribution of trainflows as a task of vector optimization.
Comparative evaluation of fatigue resistance of material for semi-treated axles produced by advanced technologies
Authors: Myamlin S. V. , Gorobets V. L. , Bondarev A. N. , Skogarev I. Ye. , Pismennyy Ye. A.
Published: May 2023

In the article the analysis of results of comparative tests on determination of endurance limit of the material in semi-treated axles produced by different technologies is carried out and the conclusions on prospects and stability of new manufacturing technologies for the semi-treated axles are drawn.
Influence of adjustment accuracy of dynamic dampers of fluctuations on seismic stability of bridges
Authors: Shermukhamedov U. Z. , Kuznetsova I. O.
Published: May 2023

The analysis of reactionary ability and fractional composition of large fillers for production of ferroconcrete cross ties is carried out in the article.
Evaluation of ukrainian railway equipment condition
Authors: Polishchuk D. O.
Published: May 2023

In this paper the method for evaluation of Ukrainian railway equipment condition is proposed. The method is based on multiparametric analysis of system’s elements with further aggregation to conclusion of system’s functional quality. Software, developed for realisation of the proposed method, is described.
Estimate influence of content carbon on the formation defects on the surface rail wheels at exploitation
Authors: Vakulenko L. I. , Nadezhdin Yu. L.
Published: May 2023

The observed questions of estimate influence content of carbon in steel on the formation defects on the surface rail wheels at exploitation.
Reforming the provision of benefits on railways
Authors: Gulay O. S.
Published: May 2023

In the article the variant of reforming of system of granting of privileges on a railway transport by principle of indemnification of guarantees only to the most unprotected, in the social sense, population is offered.
Improving the efficiency of functioning of system of strategic planning on development of transport infrastructure
Authors: Sadlovs’ka I. P.
Published: May 2023

In the article an influence of economic, social and other results on formation of effective system of strategic planning of development of transport infrastructure in Ukraine is defined.
Safety motion increase of trains by improvement diagnostics process devices of railway automation
Authors: Bondarenko B. M.
Published: May 2023

The complex use of methods of nondestructive check for the automated diagnostics electromagnetic relays of railway automation the first class reliability is offered. The methods determination of their mechanical parameters are resulted, that allows to exclude a human factor from the control, promote reliability of devices railway automation and safety motion of railway transport.