bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study the Effect of Hydrofluoric (HF) Concentration on the Topography of the Porous Silicon Layer Prepared by Sunlight Photochemical Etching (SLPCE)
Authors: Abdulrahman Rosure Borhanalden , Kadhem Hassan A. , Sh. Mohammed Abdul Hakim , Z. Hassan Issa 
Published: October 2023

Silicon nanocrystals have a vast range of potential applications, from improving the efficiency of solar cells and optoelectronic devices to biomedical imaging and drug delivery, wastewater treatment, and antibacterial activities. In this study a photochemical etching technique was used to create layers of porous silicon on a donor silicon wafer with orientation (111) and resistivity equal to 1‑10 ohm·cm. The process involved focusing sunlight onto the samples using a telephoto lens with a suitable focal length of 30cm and a diameter of 90 mm, which provided sufficient energy to complete the chemical etching. By using a constant etching time of 60 minutes and different concentrations of hydrofluoric acid (ranging from 25% to 40%), layers with varying properties were obtained. The resulting surfaces were studied using the atomic force microscope (AFM), revealing the formation of different nanostructures and particles with varying shapes, sizes, and thicknesses depending on the preparation conditions. The average size of the particles was found to be 90.43nm at a concentration of 40% acid, while decreasing to 48.7nm at a concentration of 25% HF acid.
Effect of the Diffusion of Copper Atoms in Polycrystalline CdTe Films Doped with Pb Atoms
Authors: Utamuradova Sharifa B. , Daliev Shakhrukh Kh. , Muzafarova Sultanpasha A. , Fayzullaev Kakhramon M. 
Published: October 2023

The process of diffusion of labeled copper atoms in p-CdTe<Pb> coarse-block films with a columnar grain structure has been studied. The CdTe<Pb> film is a p-type semiconductor, where an increase in the Pb concentration in the composition of the CdTe films increases the resistivity ρ of the structure. When the Pb concentration in CdTe changes from 1018 to 5·1019 cm-3, the hole concentration decreases by more than 3 orders of magnitude at a constant operating level depth of EV + (0.4 ± 0.02) eV. This may indicate that the concentration of acceptor defects, which are formed in the films due to self-compensation upon doping with a PbCd donor, exceeds the number of the latter. Electrical measurements by the Hall method were carried out at a direct current and a temperature of 300 K. As a result, an increase in the temperature of films on a Mo-p-CdTe<Pb> substrate during annealing affects the electrical parameter of charge carrier mobility µ, it decreases significantly. X-ray diffraction analysis showed that on the diffraction patterns of samples of p-CdTe<Pb> films, all available reflections correspond to the CdTe phase and up to х = 0.08 do not contain reflections of impurity phases and have a cubic modification. Based on the results of the calculation, it was established that the low values of the diffusion coefficient of Cu atoms are due to the formation of associates of the A type , which are directly dependent on the concentration of atoms. Diffusion length Ln and lifetime τn of minority current carriers in large-block p-type cadmium telluride films, which can also be controlled by introducing lead atoms into cadmium telluride.
Effectiveness of Wavelet Denoising on Secondary Ion Mass Spectrometry Signals
Authors: Dahraoui Nadia , Boulakroune M'hamed , Khelfaoui S. , Kherroubi S. , Benkrima Yamina 
Published: October 2023

Wavelet theory has already achieved huge success. For Secondary Ions Mass Spectrometry (SIMS) signals, denoising the secondary signal, which is altered by the measurement, is considered that an essential step prior to applying such a signal processing technique that aims enhance the SIMS signals.The most efficient and widely used wavelet denoising method is based on wavelet coefficient thresholding. This process involves three important steps; wavelet decomposition: the input signals are decomposed into wavelet coefficients, thresholding: the wavelet coefficients are modified according to a threshold, and reconstruction: the modified coefficients are used in an inverse transform to obtain the noise-free-signal. Several researchers have used thresholding wavelet denoising techniques.
The choice of wavelet type and the level of resolution can have a significant influence; it is important to note that the choice of resolution level depends on the type of signal we are dealing with, the nature of the present noise, and our specific goals for the denoised signal. It is generally recommended to test different resolution levels and evaluate their impact on the quality of the denoised signal before making a final decision. Moreover, the results obtained in wavelet denoising can be significantly influenced by the selection of wavelet types. The chosen wavelet type plays a crucial role in the extraction of signal details. Indeed, the effectiveness of denoising the MD6 sample has been demonstrated by the results obtained with sym4, db8, Haar and coif5 wavelets? These wavelets have effectively reduced noise while preserving crucial signal information, leading to an enhancement in the quality of the denoised signal.
Comprehensive Investigation of Neolithic Ceramic Samples: Firing Technology and Age Insights
Authors: Mammadov Sahib , Ahadova Aybeniz 
Published: October 2023

Thermogravimetric (TG/DTG), thermoluminescence (TL), and X-ray powder diffraction (XRD) techniques were applied to characterize samples collected from the archaeological site of Polutepe in Azerbaijan, dating to the Neolithic period, and gave new information on the firing technology. The thermogravimetric analysis of ceramic shards from Polutepe revealed that the firing temperature of the samples was in the range of 700°C, based on the presence of calcite in the sample. XRD analysis confirmed the presence of quartz, feldspar, and clay minerals in the ceramic samples. According to XTD analysis the mineral composition of the ceramic sample from Polutepe site was as follows: Quartz-33.8 mass%, Feldspar (albite)-21.7 mass%, Muscovite- 33.6 mass%, and Calcite- 10.9 mass%.
TL glow-curve intensity at 325°C was measured to estimate the historical dose of the sample, which was found to be 22.19±1.36 Gy. The concentration of U, Th, and K were 2.24±0.20 ppm , 8.31±0.80 ppm, 2.39±0.23% respectively. Dose rate and age calculation were conducted using the DRAC, version 1.2 and output results are as follows: Environmental dose rate: 3.46±0.19 mGy/a; Age of the sample: 4.400±530 BC years which are in line with the stratigraphically estimated age of this area and with the radiocarbon age (4270±160 BC) reported in our previous work. The results obtained from this multidisciplinary approach provide insights into the firing technology and age of the ceramic samples.
PENGARUH LINGKUNGAN KERJA, KUALITAS SUMBER DAYA MANUSIA DAN GAYA KEPEMIMPINAN TERHADAP KINERJA PEGAWAI
Authors: Krisnawida Mayang , Sundjoto  , Rahayu Sri 
Published: October 2023

This study examines the influence of the work environment, the quality of human resources and leadership style on employee performance at work.
The sample in this study were 79 employees at the Bangkalan Tax Service Office. The analytical tool used is multiple linear regression.
The results showed that simultaneously the work environment variables, the quality of human resources and leadership style have an effect on employee performance, while partially the work environment variables, the quality of human resources and leadership style have a significant effect on employee performance in the Bangkalan Tax Service Office.
Triticum durum Desf. is a valuable source for spring bread wheat genetic diversity enhancement
Authors: Druzhin A. E. , Sibikeev S. N. , Gultyaeva E. I. , Andreeva L. B. 
Published: October 2023

Background. Enhancement of the Triticum aestivum L. genetic diversity by means of alien chromatin, including that from Triticum durum Desf., is an important element in the breeding of bread wheat cultivars that meet modern requirements.Materials and methods. The study included the L153, L154 and L155 introgressive spring bread wheat lines produced from crosses between the spring bread wheat cultivars ‘L503’ and ‘L505’ and spring durum wheat cultivars ‘Yazi10’ and ‘Tarro’ developed in Mexico. Evaluation of these introgressive lines included phytopathological, phenological, genetic, and breadmaking analyses carried out with conventional methods both under open-air and laboratory conditions. Seventeen DNA markers were used to identify genes for resistance to Puccinia triticina Erikss. f. sp. tritici in the lines. The obtained data were statistically analyzed using the Agros-2.10 package of breeding and genetic programs.Results. Studying introgressive spring bread wheat lines L153, L154 and L155, developed with the participation of durum wheat cvs. ‘Yazi10’ and ‘Tarro’, showed that leaf rust resistance of these lines was induced by the Lr genes from durum wheat cultivars. The effect of the gene donor and the recipient cultivars on a number of useful agronomic traits was identified. The recipient cv. ‘L505’ was noted for its good combining abilities.Conclusion. Introgression of chromatin from durum wheat cultivars into the spring bread wheat gene pool made it possible to produce lines resistant to the local P. triticina population, as well as to some test clones of this pathogen. Such lines can be used as donors of the Lr genes. In addition, the L154 introgressive line combined good grain productivity and baking quality.
Expression of the transcription factor encoding gene StTCP23 in potato plants infected with the tuber spindle viroid
Authors: Mironenko N. V. , Orina A. S. , Lashina N. M. , Afanasenko О. S. 
Published: October 2023

Background The potato spindle tuber viroid (PSTVd) is the smallest of all known potato pathogens. PSTVd is a circular, single-stranded RNA molecule that does not code for proteins. Symptoms caused by PSTVd lead to a significant reduction in tuber yield or death of the plant. PSTVd infection triggers the silencing of host-plant genes and induces disease symptoms in the plant via vd-sRNA. The StTCP23 potato gene which encodes a transcription factor is one of the targets of PSTVd. The aim of the study was to assess the effect of inoculation of potato plants of cv. ‘Colomba’ with the PSTVd viroid NicTr-3 strain on the StTCP23 expression in infected plants.Materials and methods. Potato plants of cv. ‘Colomba’ were inoculated with leaf sap of the tomato cv. ‘Rutgers’ in which the PSTVd viroid NicTr-3 strain was propagated. RT-PCR with specific primers was used to confirm the infection of potato plants with the viroid. Diversity of RNA molecules in the PSTVd population was revealed using RT, cloning, and sequencing of the viroid. The expression of the StTCP23 gene in infected potato plants was assessed by quantitative PCR with the ef1α gene as a reference.Results. Symptoms of infecting ‘Colomba’ plants with the PSTVd viroid strain NicTr-3 were not detected, while the presence of the viroid in potato leaves was confirmed by molecular methods. Ten mutations were found in individual variants of the PSTVd strain NicTr-3, responsible for reducing the viroid’s aggressiveness. An increase in the expression of StTCP23 was shown at 3 time points in ‘Colomba’ plants inoculated with the NicTr-3 strain compared to the control.Conclusion. The mechanism of interaction between PSTVd and the StTCP23 gene in an infected potato plant is not universal and depends both on the potato genotype and viroid strain. Additional studies are required to prove the existence of specific interaction mechanisms between the host-plant and viroid strain genotypes.
Social Media and the Commodification of Attention/Inattention in the Changing Egyptian Belly Dance Industry
Authors: Morley Margaret L. 
Published: October 2023

Abstract
In 2018, Russian belly dancer Gohara catapulted to stardom after being charged with ‘inciting debauchery’ and nearly deported when a video of her Cairo disco performance went viral. Based on participant-observation of the belly dance industry in Egypt, this article employs ethnographic narratives to demonstrate that although attention is commodified across Egyptian belly dance venues, so is inattention and discretion. While foreign dancers like Gohara can often profit from any attention, for Egyptian dancers the social costs of attracting attention frequently make it undesirable, creating opportunities for exploitation and the commodification of inattention and discretion. As such, the growing dominance of the visually based economies of attention on social media is generating new challenges for Egyptian belly dancers trying to compete in a changing market.
SISTEM INFORMASI PENGELOLAAN ADMINISTRASI PEMBAYARAN SPP BERBASIS WEBSITE PADA SDIP ROUDHOTUN NUR
Authors: Dahlia  , Shabrina Resha Nur , Heriyanto  
Published: October 2023

Perkembangan dunia teknologi informasi saat ini melaju semakin pesat, berbagai macam kegiatan telah dilakukan secara terkomputerisasi. Sumbangan Pembinaan Pendidikan atau yang sering disebut SPP merupakan suatu proses administrasi keuangan yang harus dibayar siswa setiap bulannya. Proses pembayaran SPP yang terjadi di SDIP Roudhotun Nur masih menggunakan proses manual, sehingga masih dikatakan kurang efektif dimana saat pencatatan transaksi pembayaran masih menggunakan kertas dan data pembayaran di rekap secara manual. Dengan sistem yang berjalan saat ini akan memperlambat dalam proses pelayanan pembayaran SPP sehingga akan terjadi proses perhitungan yang tidak akurat. Untuk mengatasi permasalahan tersebut dibutuhkan suatu perubahan sistem yang lama, dengan dirancangnya sistem informasi pembayaran spp berbasis web dapat membantu petugas dalam melakukan pengelolaan data pembayaran SPP secara cepat, tepat dan akurat. Metode pengumpulan data yang digunakan dalam penelitian ini yaitu observasi, wawancara dan studi pustaka. Kesimpulan hasil dari penelitian ini diharapkan dapat terbangunnya sistem pembayaran spp berbasis web. Dengan adanya permasalahan penelitian terkait pengelolaan pembayaran SPP diatas diperlukan cara atau sistem untuk merubah pengelolaan administrasi pembayaraan SPP sekolah yang manual menjadi pendataan yang terkomputerisasi.
A rapidly growing fibroadenoma in a pregnant woman: A case report
Authors: Brouwer de Koning I.M. , van Heusden H.C. , Mol S.J.J. , Rots M.L. , Draaisma W.A. , Bosscha K. 
Published: October 2023

BACKGROUND: Fibroadenomas are the most common benign breast lesions in women. They present as a unilateral mass and can rapidly enlarge in size through hormonal changes. Fibroadenomas could be classified as small or giant, and as simple or complex. They are classified as ‘giant’ when the size exceeds 5 cm and/or weight 500 gram; and as ‘complex’ if one of the following characteristics is present: cysts with a size >3 mm, epithelial calcifications, sclerosing adenosis and papillary apocrine metaplasia. Giant fibroadenomas can cause compression of surrounding breast tissue or breast asymmetry, requiring surgical excision in order to preserve a normal breast shape. CASE: A 26-year-old pregnant woman was referred with a palpable mass of her right breast. The mass rapidly increased in size to a diameter of 13 cm during the second trimester of her pregnancy. A tru-cut biopsy confirmed a fibroadenoma. The rapid growth and compression of normal breast tissues indicated a lumpectomy during her pregnancy. The mass was easily excised without any consequences for the pregnancy. Pathological examination showed a complex giant fibroadenoma. CONCLUSION: A unique case of a pregnant woman with rapid progression of a fibroadenoma that met the criteria of a complex and giant fibroadenoma, was presented. This case emphasizes the importance of timely surgical intervention, even during pregnancy, to prevent permanent breast tissue damage.
ASSESSMENT OF CHANGES IN THE QUALITY OF THE ENVIRONMENT IN THE LVIV REGION ON THE BASIS OF ENVIRONMENTAL INDICES OF REMOTE SENSING
Authors: Lei Ren 
Published: October 2023

The ecological environment system is closely related to human daily life. With the acceleration of industrialization and urbanization, various human activities have brought great impacts on the local ecological environment. Timely and accurate evaluation of spatial and temporal changes in the quality of the ecological environment helps policy makers to understand the current status of the ecological environment in the region, and is of great significance for the rational development of ecological environmental protection and policies, which has become a research priority in the field of ecology. In this study, Lviv Oblast, an important region in western Ukraine, is taken as the study area, and the remote sensing ecological index remotely sensing ecological index (RSEI) of Lviv Oblast for 2015 and 2021 was constructed based on remote sensing technology, and the ecological quality of Lviv Oblast during six years was rapidly monitored and evaluated, and the results of the study show that the The average values of RSEI in 2015 and 2021 are 0.66 and 0.68, respectively, indicating a gradual improvement of ecological quality. This reflects the small impact of the deterioration of the ecological environment caused by human activities in the region in recent years.This study provides a methodological reference for evaluating the quality of the ecological environment in the Lviv region, which is of some value for the rational planning of local ecological and environmental protection strategies and policies for sustainable economic development.
ENHANCEMENT OF ENERGY EFFICIENCY AND BIOSPHORE COMPATIBILITY OF BUILDINGS AND STRUCTURES IN UKRAINE
Authors: Predun Kostiantyn , Voinalovich Vitalii , Guliyev Jamil 
Published: October 2023

The use of alternative energy sources is one of the most important areas of modern energy policy, aimed both at improving the environment and saving traditional fuel and energy resources. Adopted legislative and regulatory acts contributed to the rapid growth of "green" energy in Ukraine. The meaning of the ecological and energy optimization process is not to replace one energy source with another, but economic and industrial transformation, decarbonization and decentralization.
A technical solution to the problem regarding the source of alternative energy due to the use of heat in the surface layers of the earth's crust is proposed. At the depth of placement of probes-heat exchangers, which are structurally part of heat pump installations, the soil temperature is practically unchanged throughout the year and is positive. Non-freezing glycol solutions are used to increase the operational reliability of the installations.
To study the process of thermal interaction in the zone of placement of heat exchanger probes, mathematical modeling using the finite element method was applied. As a result, a significant array of data was obtained, which reflects the dynamics of temperature fields in different modes of operation of ground-source heat pump installations with vertical probes.
Of particular interest is the analysis of temperature fields along the depth of the well. After the seasonal selection of heat - the end of the heating period - the minimum temperature of the soil in the boundary zone of the geothermal probe is not lower than 0 0С. That is, freezing of soil rocks does not occur.
In the warm period of the year, due to, for example, the working air conditioning system of the building, the energy source of which is the heat pump installation, regeneration of the primary circuit takes place. The average temperature of the rocks between the probes at the beginning of August is, according to calculations, 6.5 0С.
The obtained results of analytical studies were used in the design of a ground heat pump installation for the energy supply needs of a public building with an estimated thermal capacity of 200 kW.
SCIENTIFIC APPROACHES TO ORGANIZATION OF "BLUE-GREEN" URBAN INFRASTRUCTURE IN CONDITIONS OF CLIMATE CHANGE
Authors: Ruban Liudmyla , Dreval Iryna 
Published: October 2023

The study is dedicated to a crucial aspect of the revitalization and ongoing development of Ukrainian cities: addressing environmental challenges through the establishment of "blue-green" urban infrastructure. The overarching objective of this research is to apply current scientific knowledge concerning this matter to local urban planning practices. This is achieved by incorporating ecosystem-based solutions to foster sustainable development within the region. Fundamental concepts essential for shaping the framework of "blue-green" urban infrastructure in the context of climate change are elucidated. The paper introduces a model for a riverside city, emphasizing the integration of a natural water feature - such as a river, including its tides where applicable - and the surrounding coastal areas. It is discerned that a networked structure characterizes settlements along riversides. The role of the city's "blue-green" infrastructure in adapting to climate change is articulated. This includes conserving water resources, averting floods and other natural disasters, preserving biodiversity, mitigating the heat island effect, and enhancing air quality. Furthermore, a tailored adaptation model suitable for riverside settlements is developed, accompanied by the author's recommendations. An analysis of current scientific approaches within the domestic academic and practical sphere is provided, focusing on the integration of green and water elements. These approaches encompass: a) establishing the “water-green diameter” of the city, b) devising plans for water-green zones, and c) organization the “blue-green” urban infrastructure—an idea introduced by the author. The study identifies potential challenges and hurdles in implementing the “blue-green” infrastructure concept along the coastlines of river settlements. These challenges include the environmental aftermath of military aggression, existing development of territories, ecological sustainability, public support, regulatory frameworks, etc. A theoretical examination of the “blue-green” infrastructure underscores its potential as an innovative and crucial instrument in cities' adaptation to climate change. This framework aids in resolving issues associated with escalating temperatures, floods, air pollution, and the decline of biodiversity. Profound comprehension of the constituents and functions of “blue-green” infrastructure empowers us to better tailor our urban environments to climate fluctuations, thus fostering more sustainable and habitable cities.