bluuebunny/crossref_metadata_2025_split huggingface dataset:
Productive and weight indicators of the digestive canal organs of broiler chickens when using a feed additive based on humic acids
Authors: Dmitriev N. O. , Salautin V. V. , Salautina S. E. , Shcherbakova V. S. 
Published: March 2023

Relevance. Recently, a promising alternative to antibiotics has become a wide range of feed additives of different composition and different origin, the action of which is aimed at improving the safety of livestock, increasing live weight gain, feed conversion and the quality of the products obtained. One of such feed additives is «Reasil® Humic Health» based on humic acids.Methods. The production experience was carried out on the basis of the poultry farm of LLC «Vremya-91». To conduct production experience on broiler chickens of 21-day-old «Cobb 500» cross, according to the principle of analogues, 2 groups of poultry were formed: control and experimental, with 18,000 heads each. The bird of the control group received the main diet. Broiler chickens of the experimental group, in addition to the main diet, received the feed additive «Reasil® Humic Health» in a concentration of humic acid salts of 2 g/kg of feed.Results. The addition of a humic biologically active feed additive to the diet at a dose of 2 g/kg of feed makes it possible to increase the live weight of broilers by 9.5%, the safety of livestock by 2% and average daily gains by 21%.
Identification of the capsule type of <i>P. multocida</i> strains by phenotypic methods in comparison with the multiplex PCR-method
Authors: Malik N. I. , Malenkova L. A. , Malik E. V. , Guleychik I. A. , Chupahina N. A. , Rusanov I. A. , Samohvalova N. S. 
Published: March 2023

Relevance. Pasteurellosis is a group of zoonotic infectious diseases caused by Pasteurella multocida. According to the antigenic composition, P. multocida is divided into 5 serogroups (A, B, D, F and E). Pathogenic and virulent properties of various serogroups and serotypes of the pathogen in different animal species vary widely and are a marker for determining their role in the development of the disease. Typing of P. multocida strains by capsule groups is an important condition for a comprehensive assessment of the epizootic situation, including for solving the issue of specific disease prevention.Methods. 82 strains of P. multocida from the collection of FGBI «VGNKI», isolated in different years from various animals, were used in the work. Phenotypic typing of pasteurella strains by capsule groups according to Carter was carried out in a test for the detection of hyaluronic acid in a pasteurella capsule and by the type of reaction in a tripaflavin sample. Strains giving a positive reaction with staphylococcus hyaluronidase wereassigned to capsule group A. If the test culture did not belong to group A, but was positive when examined in a tripaflavin sample, it was assigned to capsule group D.Results. Discrepancies between the results of phenotypic typing of pasteurella strains by capsule groups and by PCR were established. The results of typing did not coincide between PCR and Carter typing for capsule group A with respect to 25 strains, for capsule group D with respect to 5 strains and for capsule group B with respect to 5 strains. The number of untyped or doubtful phenotypic properties of pasteurella strains was 29.73%, untyped by PCR 2.46%. Hyaluronidase and acriflavin tests, unlike the PCR-method, do not provide an opportunity for typing pasteurella groups E and F.
ANALISIS SISTEM PENDINGINAN PANEL POLYCRYSTALINE DAN MONOCRYSTALINE
Authors: Kusumaningtyas Ajeng Bening , Wardhono Silo , Eka Ananda Ricky 
Published: March 2023

Panel surya merupakan salah satu energi terbarukan yang banyak dikembangkan teknologinya saat ini. Salah satunya adalah pengembangan sistem pendinginan untuk panel surya. Suhu panel surya merupakan salah satu parameter yang penting dari PLTS karena suhu panel dapat mempengaruhi tegangan output panel. Panel monocrystaline dapat bekerja meskipun dalam suhu yang tinggi sedangkan panel polycrystalline akan menurun kinerja nya apabila bekerja dalam suhu tinggi, dalam penelitian ini akan dianalisis perbandingan dampak adanya sistem pendinginan terhadap tegangan output dari panel monocrystaline dan panel polycrystaline. Sistem kontrol untuk pendinginan PLTS menggunakan sensor thermocontrol yang terhubung ke pompa bak penampungan air, sehingga ketika sensor mendeteksi suhu yang tinggi maka sensor akan menggerakkan pompa air agar mengalirkan air ke permukaan panel. Dari data hasil penelitian menunjukkan bahwa pada panel polycrystaline tegangan output meningkat ketika suhu panel lebih dingin, pada pukul 12.15 suhu awal panel adalah 35⸰C dengan tegangan output 12.3 volt setelah proses pendinginan suhu panel menjadi 33,6⸰C dengan tegangan output menjadi 12,5 volt. Untuk panel monocrystaline pada pukul 12.15 suhu awal panel adalah 35⸰C dengan tegangan output 12.8 volt setelah proses pendinginan suhu panel menjadi 32,8⸰C dengan tegangan output menjadi 12,9 volt.
Kata kunci : tegangan output, suhu, monocrystaline,polycrystaline
IMPLEMENTASI INTRUSION DETECTION SYSTEM (IDS) SURICATA DAN MANAGEMENT LOG ELK STACK UNTUK PENDETEKSIAN KEGIATAN MINING
Authors: Zain Ayu Rosyida , Oktivasari Prihatin , Fauzi Soelaiman Nur , Watsiqul Umam Faiz 
Published: March 2023

IDS (Intrusion Detection System) merupakan salah satu metode keamanan jaringan komputer yang ingin melindung komputer dalam sebuah jaringan. Pada penelitian ini dibuat implementasi sistem IDS menggunakan Suricata dan management log ELK Stack. Dimana Suricata merupakan salah satu IDS engine yang mempunyai kelebihan lebih mudah dalam konfigurasi rules dan management log ELK Stack dapat mempermudah dalam monitoring keamanan jaringan. Pengujian dan analisis dilakukan terhadap implementasi sistem IDS Suricata dan management log ELK Stack, meliputi Funcional Test, Response Time, Detection Rate, dan memory usage akibat kegiatan web mining. Suricata berhasil mendeteksi terhadap serangan dan juga kegiatan web mining serta menampilkannya pada interface berbasis Web ELK Stack.
Kata Kuncis: IDS, Suricata, ELK Stack, Mining
RANCANG BANGUN SISTEM MONITORING DAN KONTROL ENERGI LISTRIK PADA BEBAN 3 FASA MENGGUNAKAN ESP32 BERBASIS INTERNET OF THINK (IOT)
Authors: Yuniarto Wendhi , I Irman , S Suparno , Man Rus , Diponegoro Muhammad , E Edi 
Published: March 2023

Monitoring dan kontrol sistem energi listrik pada beban 3 fasa di Laboratorium dan Bengkel Elektronika Politeknik Negeri Pontianak (POLNEP) masih dilakukan secara konvensional, ini menjadi suatu permasalahan pada pengaturan pembagian beban yang seimbang, efisiensi daya, perhitungan cost beban, serta perbaikan faktor daya pada Gedung Laboratorium dan Bengkel Elektronika POLNEP. Teknologi berbasis Internet of Think (IoT) saat ini memungkinkan untuk melakukan monitoring dan kontrol sistem energi listrik beban 3 fasa menggunakan ESP32 berbasis IoT secara realtime, serta dapat melakukan kontrol on/off system secara jarak jauh apabila diperlukan/terjadi keadaan emergency. Penelitian ini menggunakan metoda studi pustaka, metoda observasi, dan metoda eksperimental, serta penggunaan ESP32 dengan Protocol MQTT berbasis Platform IoT Thingsboard. Adapun sensor yang digunakan adalah sensor PZEM-004t untuk mengukur nilai tegangan, nilai arus, nilai faktor daya, serta nilai frekwensi dari jaringan listrik. Pada hasil implementasi didapat prosentase error perhitungan dan pengukuran daya pada beban 3 fasa sebesar; Fasa R = 0.04%, Fasa S = 0. 96%, dan Fasa T = 0.42% (prosentase error dibawah 1%), dari hasil penelitian ini telah sesuai dengan target penelitian, yaitu untuk dapat melakukan monitoring (tegangan, arus, daya, dan faktor daya beban 3 fasa), serta kontrol (on/off system 3 fasa) secara realtime.
Kata Kunci : Monitoring dan Kontrol, 3 Fasa, IoT, ESP32
Stock Price Volatility Out of LQ45 February - July 2022 Period
Authors: Nelmida Nelmida , Dewi Nurlita , Br. Bangun Susan Oktaviani 
Published: March 2023

<p><strong><em>Volatility is the fluctuation of returns in a certain period, if the fluctuations in returns have a large variation, then the possibility of a risk that will occur is greater, and vice versa if the fluctuation of risk is smaller, the probability that the risk that will occur will be smaller. Analysis of stock price volatility from stock indexes is needed to facilitate investors in making investment decisions. This study aims to provide an overview of the volatility of securities owned by investors towards shares owned in the LQ45 stock index group which have the potential to receive expected returns or have risk potential. Also knowing how much value can be generated from profits and how much risk will be borne by investors. This study uses descriptive comparative and quantitative research methods using secondary data, and the model used to assess stock volatility is the Baskin method (1989). Based on the research results, there is a difference in the volatility of the stock prices of companies that enter and leave LQ45 for the period 1 February – 31 July 2022. The scope of the research is only companies that enter and leave LQ45 for the period 1 February to 31 July 2022, so the number of samples used is limited and the research results cannot be generalized, and. The model used to assess stock volatility is the Baskin method (1989). Novelty is the uniqueness of the research is volatility of stocks leaving LQ 45 during February-July 2022</em></strong></p><p><strong><em> </em></strong></p><p><strong><em>Keywords: Stock volatility; LQ 45; investors</em></strong></p>
Customers’ Preference of Online Marketplace: Trendyol and Hepsiburada Case Study
Authors: Kemora Haura , Pasaribu Popy Novita 
Published: March 2023

<strong><em>The development of internet has increased the popularity of e-commerce. There are many different types of online marketplace, and each of them has its own customer base. Customers develop their preference or choice of specific online marketplace over the competitors. This research aimed to understand the factors influencing the choice. The research explored online dimensions that influencing user experience during shopping. In addition, the research incorporates neuroscientific findings, namely limbic types which is essentially similar to customer persona. Analysis of customer persona of the limbic type used descriptive analysis and dimension of attitude online shopping used regression analysis that done with SPSS application. The object of research was the online shopper with marketplace Trendyol and Hepsi Burada. The sampling technique was purposive with the criteria of responden is online shoppers. The collection of data by google form used snowballing technique. The total respondents were 117. The results showed that Trendyol type of limbic types ware Connoisseurs and Hedonist. The limbic map of Trendyol was Fantasy/Pleasure towards Balance System. The dimensions of brand identity that give significant effect were interactivity, information quality, usability, entertainment and personalization. Interactivity, usability and entertainment gave a positive and significant effect towards brand attitude formation in E-shops Trendyol or Hepsiburada, whereas information quality and personalization resulted on signicantly negative impact. Design and domain name had no significant effect towards dependent variable. The model could explain 79.2% of brand attitude formation in E-shops Trendyol or Hepsiburada</em></strong>
Design of the Attendance System using RFID and Similarity Metric Learning at Universitas Dinamika Bangsa
Authors: Toscany Afrizal , Rahim Abdul , Bustami Irwan , Sadikin Ali 
Published: March 2023

Admission of new students at Universitas Dinamika Bangsa has a significant increase, so that the number of active students on campus becomes more. This has an impact on the recapitulation process of lecture absence by study staff to be longer than before, due to the calculation process that is done manually. This research will create a system designed to increase efficiency in lecture attendance activities by presenting an attendance system equipped with an RFID (Radio Frequency Identification) Reader and camera. In addition to the process of digitization of attendance data will be added similiarity metric learning method for validation of student absences that are done periodically. The method to be used in system development is prototyping. This research resulted in a system design with UML modeling and absentee device design.
Estimating the Underreporting Rate of Injured Cyclists
Authors: Pauer Gábor , Krizsik Nóra , Szigeti Szilárd 
Published: March 2023

International data reports indicated that underreporting is a frequent phenomenon in the case of cyclist accidents. However, determining the exact volume of underreported accidents or injured cyclists is a difficult task. Our research focused on a comprehensive examination of the personal injury accident data of cyclists. The primary aim was to elaborate a model determining the proportion of injured cyclists ‘missing’ from the official accident database and to explore the possible causes and processes leading to that. With the use of various data sets (accident database, data from hospitals and survey of cyclists), the model can alleviate the distortion effects arising from conclusions reached using only one data source. To demonstrate applicability, the surveys and examinations were carried out in relation to Hungary. The results showed that only 8.3% of injured cyclists were reported in the official accident database. The majority (62.6%) of injured cyclists received neither police action, nor medical treatment. The volume of the underreporting varied depending on the injury outcome and type of accident.
Nursing Students' Caring Behavior Towards Clinical Learning Readiness
Authors: Permana Bhakti , Yusuf Ah. , Setiawan Henri , Putri Tri Antika Rizki Kusuma 
Published: March 2023

Aims: There was a high rate of psychological issues among students engaging in clinical practice. Students that focus on caring as their pedagogical foundation will be more equipped to provide nursing intervention in clinical situations.
Objective: This research aimed to examine nursing students' caring behaviors as they relate to their readiness for clinical practice.
Methods: A total of 122 nursing students from nursing schools in Bandung participated in this descriptive and cross-sectional study, with a response rate of 81.3%. Students' caring behavior and clinical readiness are assessed using the Casey-Fink Readiness for Practice Survey and the CBI-24 (Caring Behavior Instrument short form). Pearson correlation and linear regression tests in SPSS 26 were used to establish associations between the variables.
Results: Findings demonstrated a statistically significant correlation between students' caring conduct and clinical preparation (sig 0.000; p0.05). The correlation between the two variables was 23.8% strong, which was statistically significant. Student readiness for clinical practice was only strongly related to the connection factor. Nursing students' caring attitudes and clinical readiness were not significantly influenced by students' age, gender, or work situation.
Conclusions: The level of empathy and social connection among nursing students influenced how well they were prepared for clinical practice. The development of students' caring behaviors, including self-assurance, competency, and respect, should be a primary goal of nursing education.
Clinical and epidemiological aspects of ulcerative colitis in the Irkutsk region
Authors: Chashkova E. Yu. , Korotaeva N. S. , Pak V. E. , Grigoryev E. G. , Shedoeva L. R. , Tungusova N. V. 
Published: March 2023

AIM: to study sociodemographic, clinical and epidemiological features in patients with ulcerative colitis in the Irkutsk region (Russia).PATIENTS AND METHODS: the database of the Irkutsk IBD Center included 1,122 patients with ulcerative colitis (UC) registered from 01.01.2006 to 31.12.2019. The study is retrospective with a focus on the results of follow-up, check up and treatment in different periods of their disease (acute attack, chronic course, remission). Statistical analysis was performed according to the principles of the International Committee of Medical Journal Editors (ICMJE).RESULTS: the incidence of inflammatory bowel disease in the Irkutsk Oblast over the previous 14 years has increased by 2.7 times, of ulcerative colitis — by 3.1 times and was 3.91 person-years per 100,000 population. The prevalence of UC was 68.5 per 100,000 population. The annual increase in new UC cases was 46.6 ± 8.2. Most patients had total lesion (68.4%) and moderate-to-severe disease (46.9%). Extra-intestinal manifestations (13.6%) were represented by skin lesions (40.7%). Body weight deficiency occurred in 9.9% in females and in 5.1% in males. The probability of colectomy was 1.4/100 patient-years (follow-up period was 7049.5 patient-years; n = 1122). Patients underwent urgent operations in 76.3%. Postoperative mortality was 1.03/100 patient-years (exposition time — 291.6 years, n = 3). Total mortality for the entire follow-up period was 1.8% — 0.34/100 patient-years (exposition time — 4440.8 years).CONCLUSION: objective epidemiological data, clinical features and treatment options for patients with ulcerative colitis in long-term follow-up in the Irkutsk Oblast are presented. The results of such studies on a national scale can serve as a platform for further scientific research and planning of socio-economic programs.
Macromolecular crowding in animal component-free, xeno-free and foetal bovine serum media for human bone marrow mesenchymal stromal cell expansion and differentiation
Authors: Korntner Stefanie H. , Di Nubila Alessia , Gaspar Diana , Zeugolis Dimitrios I. 
Published: March 2023

Background: Cell culture media containing undefined animal-derived components and prolonged in vitro culture periods in the absence of native extracellular matrix result in phenotypic drift of human bone marrow stromal cells (hBMSCs).Methods: Herein, we assessed whether animal component-free (ACF) or xeno-free (XF) media formulations maintain hBMSC phenotypic characteristics more effectively than foetal bovine serum (FBS)-based media. In addition, we assessed whether tissue-specific extracellular matrix, induced via macromolecular crowding (MMC) during expansion and/or differentiation, can more tightly control hBMSC fate.Results: Cells expanded in animal component-free media showed overall the highest phenotype maintenance, as judged by cluster of differentiation expression analysis. Contrary to FBS media, ACF and XF media increased cellularity over time in culture, as measured by total DNA concentration. While MMC with Ficoll™ increased collagen deposition of cells in FBS media, FBS media induced significantly lower collagen synthesis and/or deposition than the ACF and XF media. Cells expanded in FBS media showed higher adipogenic differentiation than ACF and XF media, which was augmented by MMC with Ficoll™ during expansion. Similarly, Ficoll™ crowding also increased chondrogenic differentiation. Of note, donor-to-donor variability was observed for collagen type I deposition and trilineage differentiation capacity of hBMSCs.Conclusion: Collectively, our data indicate that appropriate screening of donors, media and supplements, in this case MMC agent, should be conducted for the development of clinically relevant hBMSC medicines.
Bacterial-mediated synthesis and characterization of copper oxide nanoparticles with antibacterial, antioxidant, and anticancer potentials
Authors: Talebian Seyedehsaba , Shahnavaz Bahar , Nejabat Masoud , Abolhassani Yasaman , Rassouli Fatemeh B. 
Published: March 2023

The application of novel bacterial strains for effective biosynthesis of nanoparticles minimizes negative environmental impact and eliminates challenges of available approaches. In the present study, cell-free extract of Stenotrophomonas sp. BS95. was used for synthesis of copper oxide nanoparticles (CuONPs). Characterization of crude and calcined CuONPs was carried out by UV-vis spectroscopy, X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, zeta potential, dynamic light scattering, field emission scanning electron microscopy, transmission electron microscopy, and atomic force microscopy. Afterward, biogenic CuONPs were evaluated for antibacterial, antioxidant, and cytotoxic effects using broth micro-dilution method, DPPH assay and alamarBlue assay, respectively. Finally, molecular mechanisms behind anticancer effects of CuONPs was ascertained by real time PCR. UV-vis absorbance spectra registered surface plasmon resonance peaks at 286 nm and 420 nm for crude and calcined CuONPs, respectively. FTIR spectra exhibited bands associated with organic functional groups of bacterial proteins, confirming capping and functionalization of CuONPs. The average crystallite size of crude and calcined CuONPs was determined as 18.24 and 21.3 nm by XRD, respectively. The average zeta potentials of crude and calcined CuONPs were as −28.57 ± 5.13 and −29.47 ± 4.78 mV, respectively, indicating their high stability. Electron microscopy revealed that crude and calcined CuONPs were roughly spherical particles with an average size of 35.24 ± 4.64 and 43.68 ± 2.31 nm, respectively. Biogenic CuONPs induced antibacterial effects with minimal inhibitory concentrations ranging from 62.5 to 1,000 μg/ml against Gram-negative and Gram-positive strains. The antioxidant activity of crude and calcined CuONPs was found to be 83% ± 2.64% and 78% ± 1.73%, respectively. More intriguingly, CuONPs exerted considerable cytotoxic effects on human colon and gastric adenocarcinoma cells, while induced low toxicity on normal cells. Anticancer effects of biogenic CuONPs were confirmed by significant changes induced in the expression of apoptosis-related genes, including P53, BAX, BCL2 and CCND1. Hence, biosynthesized CuONPs could be considered as potential antimicrobial, antioxidant and anticancer agents.
The phylogeny and distribution of Wolbachia in two pathogen vector insects, Asian citrus psyllid and Longan psyllid
Authors: Ou Da , Qiu Jun-Hong , Su Zheng-Qin , Wang Lei , Qiu Bao-Li 
Published: March 2023

BackgroundWolbachia is the most abundant bacterial endosymbiont among insects. It can play a prominent role in the development, reproduction and immunity of its given insect host. To date, Wolbachia presence is well studied within aphids, whiteflies and planthoppers, but relatively few studies have investigated its presence in psyllids.MethodsHere, the infection status of Wolbachia in five species of psyllid, including Asian citrus psyllid Diaphorina citri and longan psyllid Cornegenapsylla sinica was investigated. The phylogenetic relationships of different Wolbachia lines and their infection density and patterns in D. citri and C. sinica from different countries was also examined.ResultsThe infection rates of Wolbachia in D. citri and C. sinica were both 100%, and their sequencing types are ST173 and ST532 respectively. Phylogenetic analysis revealed that the Wolbachia lines in D. citri and C. sinica both belong to the Con subgroup of Wolbachia supergroup B. In addition, Wolbachia displayed a scattered localization pattern in the 5th instar nymphs and in the reproductive organs of both D. citri and C. sinica but differed in other tissues; it was highest in the midgut, lowest in the salivary glands and medium in both the testes and ovaries.ConclusionOur findings assist in further understanding the coevolution of Wolbachia and its psyllid hosts. Given that Wolbachia could play an important role in insect pest control and pathogen transmission inhibition, our findings may also provide new insights for development of control strategies for D. citri and C. sinica.