bluuebunny/crossref_metadata_2025_split huggingface dataset:
Biosynthesis of MgO Nanoparticles Using Klebsiella pneumoniae and Staphylococcus aureus
Authors: Faisal Daiana , Mohammed Obaid Hiro 
Published: January 2025

The current study describes a low-cost, environmentally friendly, and repeatable magnesium oxide nanoparticle manufacturing process mediated by Klebsiella pneumoniae and Staphylococcus aureus. The purpose of this study was to produce magnesium oxide nanoparticles by employing the bacterial culture supernatant of (Klebsiella pneumoniae and Staphylococcus aureus) and to characterize them.The magnesium oxide nanoparticles were created using an environmentally acceptable extracellular bio-synthetic technique.magnesium nitrate were used as a source of MgO NPs. Ultraviolet-visible (UV-Vis), X-ray diffraction (XRD), Energy dispersive X-ray (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to analyze the MgO NPs. The XRD pattern showed fifth major peaks of the crystalline metallic MgO NPs. The UV spectrum of the MgO K.pneumoniae NPs showed a sharp absorption peak at 330 nm and 334 nm for MgO S.aureus NPs. According to the current study's findings, K.pneumoniae and S.aureus bacteria are both capable of creating MgO NPs extracellularly.
Effects of flipped learning on the students’ interest and learning experiences in physics
Authors: Raheem-Folayinka Ganiyat Pelumi , Babajide Veronica Folasade T. , Raheem Isiaka Ayobi 
Published: January 2025

The study examined the effect of flipped learning on the student’s interest in Physics and learning experiences between a flipped classroom and a conventional classroom. A quasi-experimental pre-test/post-test control group design was adopted for this study. An intact class sample of 45 students as the experimental group and 50 control group of SS 2 students that offered Physics were used for this study from two senior secondary schools in Lagos State. The Questionnaire with a reliability coefficient (r) of 0.84 was instrumentally used for data collection for this study. the study’s data were analyzed to get frequency counts, mean, and standard deviation and interpreted at p < 0.05 level of significance. This study’s results revealed that the flipped learning method significantly affected students' interest in Physics, and students acquired more excellent learning experiences whenever they were exposed to a flipped classroom than a conventional classroom. Concerning the findings of this study, it is highly recommended that secondary school teachers should always be ready to utilise innovative teaching techniques that will boost students’ interest in learning Physics and other subjects exceptionally, and creatively stimulate students’ learning experiences in all ramifications among others.
THE CONTRIBUTION OF MODERN RADIOLOGY METHODS TO DIAGNOSTICS OF INFLAMMATORY CHANGES IN THE BRONCHIAL TREE IN PULMONARY TB PATIENTS
Authors:   Novosibirsk Tuberculosis Research Institute, Novosibirsk, Russia, Sklyuev S.V. , Petrenko T.I. ,   Novosibirsk State Medical University, Novosibirsk, Russia, Krasnov D.V. ,   Novosibirsk State Medical University, Novosibirsk, Russia, Poddubnaya L.V. ,   Novosibirsk State Medical University, Novosibirsk, Russia, Kolpakova T.A. ,   Novosibirsk State Medical University, Novosibirsk, Russia, Nikonov S.D. ,   Novosibirsk Tuberculosis Research Institute, Novosibirsk, Russia
Published: January 2025

Objective. To study the contribution of radiology methods to diagnostics of inflammatory changes in the bronchial tree
in pulmonary TB patients. Materials and methods. We carried out a retrospective cohort study. It included a main group
of patients with local inflammatory changes in the bronchial tree diagnosed by tracheobronchoscopy (461 patients)
and a comparison group of pulmonary TB patients without inflammatory changes in the tracheobronchial tree (496 patients). We assessed the matching between radiological and endoscopic signs of lesion of the tracheobronchial tree.
Results. We established a direct correlation between the severity of changes revealed by endoscopy and the number of
radiological signs revealed by multispiral computed tomography (MSCT) of the chest; Spearman’s correlation coefficient
was 0.345, (p = 0.002). As severity of inflammatory changes in the bronchial tree increased, the probability of MSCT
patterns matching with bronchoscopy results also increased; Spearman’s correlation coefficient was 0.361, (p = 0.001).
Conclusion. In the present study the sensitivity of the virtual bronchoscopy method does not exceed 31%, which does not
allow recommending it for diagnostics of local inflammatory changes in the bronchi.
CHARACTERISTICS AND APPLICATION OF MONOCLONAL ANTIBODIES TO Mycobacterium kansasii
Authors:   Central TB Research Institute, Moscow, Russia, Avdienko V.G. , Babayan S.S. ,   Central TB Research Institute, Moscow, Russia, Bocharova I.V. ,   Central TB Research Institute, Moscow, Russia
Published: January 2025

Еighteen monoclonal antibodies (mAbs) against M. kansasii antigens were created. Their specificity, the spectrum of recognized antigens, isotypes and the chemical nature of the antigenic determinant were studied. MAbs 1C9 and 3B3 (IgG2b, k,
anti-30–32 kDa), 2C11 (IgG1, k, anti-11 kDa) and 1H9 (IgG1, k) had greater specificity of binding to M. kansasii antigens. Crossreacting mAbs 3B6, 3F8(IgG1, k), recognized antigen 85B and mAb 2G1 (IgG1, l, anti-22 kDa) and bound to isoniazid-induced
antigen IniB. MAb 3E11 (IgG1, k, >20 kDa) reacted with the protein represented on all studied mycobacteria, but not on other
bacteria. Affinity-purified immunoglobulins of mAbs were used in heterologous indirect sandwich ELISA to study diagnostic
properties of IgG antibodies in sera from patients with pulmonary tuberculosis (TB), pulmonary mycobacteriosis and healthy
donors. The best results were associated with mAb 3G9 (IgG1, k, anti-33 kDa) – 97.25% specificity and 86.68% sensitivity.
For mAb 2G1, the specificity was 70.79% and the sensitivity was 89.19%. For mAb 1C9 – 72.00 and 72.68% respectively.
The described method can serve as a complementary method to molecular biological and bacteriological confirmation
methods in the studies of pulmonary mycobacteriosis.
Bussiness Development Services (BDS): Menuju Sukses Melalui Laporan Keuangan Dan Perpajakan Untuk Umkm Kota Makassar
Authors: Syarifuddin Safria , Ilham Ilham , Arifin Rukminih , Sari Sri Nirmala , Denka Veronika Sari 
Published: January 2025

Business Development Services is a program that allows the General Directorate of Taxation to provide guidance and supervision to MSME taxpayers and their businesses to maximize awareness. Business Development Services is a private institution that operates and is involved in small and medium enterprises (SMEs), as the name implies, the BDS provider institution provides services to improve the business performance and competitiveness of MSMEs. This institution is an institutional instrument aimed at encouraging the advancement of MSMEs, not only in the least developed and developing countries, but olso in the industrialized countries. DGT involves the Pratama Tax Service Office (KPP) in implementing the BDS program directly in the regions. This allows for more personal assistance according to the needs of local MSMEs. With this program, DGT hopes to create a more inclusive tax ecosystem, where MSMEs can develop more optimally while complying with applicable tax obligations. This program is also a form of DGT's commitment to supporting national economic growth through MSME empowerment.
Türkiye’de Dönüşen Televizyon Yayıncılığında RTÜK Denetimi
Authors: Dursun Emel , Yazıcı Fikret 
Published: January 2025

Türkiye’de yayıncılık alanında 1964 yılında 359 Sayılı Kanun ile başlayan denetimler 2954 Sayılı TRT Kanunu ile devlet tekelinde devam etmiştir. Özel televizyonların kuruluşu ile beraber 1994 yılında 3984 Sayılı Radyo ve Televizyonların Kuruluş ve Yayınları Hakkında Kanun kabul edilmiş ve Radyo Televizyon Üst Kurulu kurulmuştur. Kanunun iletişim alanında yaşanan gelişmeler sonrası yayıncılık alanındaki düzenlemeler ve denetlemeler noktasında yetersiz kalması üzerine 2011 yılında 6112 sayılı Radyo ve Televizyonların Kuruluş ve Yayın Hizmetleri Hakkında Kanun yürürlüğe girmiştir. Hızla gelişen internet teknolojisinin ortaya çıkardığı olumsuzlukları gidermek ve isteğe bağlı yayınları düzenlemek için Kanuna 2018 yılında 29/A maddesi eklenmiştir.
Bu çalışmanın temel amacı; Türkiye’de geleneksel yayıncılıktan dijital yayıncılığa geçiş süreci ile birlikte ortaya çıkan denetim problemlerini ortaya koymaktır. Araştırmanın evrenini RTÜK, Türkiye’de yayın yapan tüm geleneksel televizyon kanal ve dijital yayın platform yöneticileri oluşturmaktadır. Amaçlı örneklem yöntemi kullanılarak belirlenen örneklemde ise, 2023 yılı temmuz ayı reyting sıralaması dikkate alınmıştır. Bu doğrultuda geleneksel televizyon kanal, dijital yayın platform ve RTÜK yöneticileri olmak üzere toplam 11 yönetici ile yarı yapılandırılmış görüşme yapılmıştır. Bu görüşmeler MAXQDA Analytical Pro 2022 veri analiz programında kodlanarak analiz edilmiştir. Analiz sonucunda RTÜK’e yönelik olumlu/olumsuz eleştiriler ön plana çıkmıştır. RTÜK’e dair teknolojik gelişmeler karşısında hızlı aksiyon alan, iş birliğine ve eğitime önem veren bir kurum olması gibi olumlu eleştiriler yapılmıştır. Ayrıca şikâyet üzerine harekete geçmesi ve geleneksel televizyonlarda daha sıkı, dijital yayın platformlarında daha esnek denetimler yapması, toplumsal hassasiyetlere duyarsız kalması, reklam sürelerinin yeterince denetlenmemesi gibi problemler tespit edilmiştir. Geleneksel televizyon kanallarının gelecekte de yayıncılık alanında varlıklarını sürdüreceklerine dair bulgular elde edilmiştir.
Hybrid Adaptive Backstepping Sliding Mode Controller of Permanent Magnet Linear Synchronous Motors
Authors: Maamar Yahiaoui , Alnami Hashim , Elzein I. M. , Benameur Afif , Brahim Brahimi , Mohamed Horch , Mahmoud Mohamed Metwally 
Published: January 2025

This paper tackles the tracking position control dilemma of permanent magnet linear synchronous motors with parameter uncertainties and load force disturbance. Adaptive nonlinear backstepping control augmented with sliding mode control (SMC) is proposed to solve the problem of load force distribution. The backstepping is a recursive control technique where its stability is ensured at each step. However, its sensitivity to uncertainties, disturbances, and electromagnetic noise leads to unwanted performances. SMC is a well-known nonlinear robust approach for uncertain dynamical systems and reduces its parametric adaptive laws. However, implementing this technique in real-time applications is stopped by its main shortcoming, the undesirable chattering phenomenon. The saturation function is used to reduce the chattering phenomenon. The incorporation of these approaches is a promising solution to provide a suitable position tracking of PMLSM in the presence of parameter uncertainties and load force disturbance. The simulation tests have been performed on the PMLSM system to prove the effectiveness and robustness of the proposed controller law. The results highlighted satisfactory position tracking performance in transient conditions and steady-state and under different load force disturbances.
Porous anodized aluminium oxide: application outlooks
Authors: Tsyntsaru Natalia 
Published: January 2025

Properties of nanomaterials often differ from the ones of macrosized materials, and many of them have to be investigated. As one of the example is the formation of porous anodic metal oxides. An oxide film can be grown up on certain metals by anodization, the so- called valve metals. For each of these metals there are conditions established to enable promotion of the formation of thin, dense, barrier or porous oxide having uniform thickness at the whole surface. Among valve metals aluminum is an important case because of its ability to find diverse and important applications including architectural finishes, prevention of corrosion of automotive and aerospace structures, and electrical insulation. The porous aluminium anodic oxide (AAO) collected an enormous attention, because its pores can be used as a template for preparing various nanomaterials as nanoparticles, nanowires and nanotubes. The most widely used baths contain sulfuric acid, for particular applications oxalic or phosphoric acids are also used. It has been widely accepted mechanism that the formation of pores in anodized metal oxides is based on two continuous processes, one is oxide dissolution at the electrolyte/oxide interface and the other is oxidation of metal at the oxide/metal interface. This work presents an overview on fabrication research, understanding the formation mechanism of anodic metal oxide and the application of different sized AAO materials.
Characterization of as-deposited and annealed Cr–Zn–P coatings electrodeposited from a trivalent chromium bath
Authors: Survilienė Svetlana , Jasulaitienė Vitalija , Juškėnas Remigijus , Selskienė Aušra , Češūnienė Asta , Suchodolskis Algirdas , Pakštas Vidas 
Published: January 2025

Black Cr–Zn–P coatings were electrodeposited on a steel substrate from a trivalent chromium bath using glycine as a complexing agent, ZnO as a second main component and sodium dihydro-phosphate as a source of phosphorus. Scanning electron microscopy (SEM), X-ray diffractometry (XRD), X-ray photoelectron spectroscopy (XPS) and spectral reflectance in the UV–visible–near IR and medium IR ranges were used to characterize the black coating before and after annealing. The relationship between the microstructure and optical properties of the black Cr–Zn–P coating deposited on the steel substrate has been studied using as-deposited and annealed samples. The deposits were found to have nodular crystals of various sizes with microcracks undergoing changes during heat treatment. XRD patterns suggest that the Cr–Zn–P alloy is a solid solution, which undergoes a series of transformations during annealing at 600 °C. The XPS results suggest that the near-surface layer is rich in Cr and Zn hydroxides, whereas oxides become dominant towards the substrate/coating interface. Besides, small amounts of phosphor and organic substances were also present in the coating. The phase constitution of black chromium varies by heating the sample up to 600 °C. The black Cr–Zn–P coating has good optical properties and these properties remain practically constant even when heat treated to a high temperature of 400 °C. It has been found that sample annealing at 600 °C initiated an increase in reflectance caused by the changes in the structure and chemical composition of the deposit and the diffusion of the substrate material (Fe) into black chromium.
Comparison of RPLC and HILIC coupled with tandem mass spectrometry for the determination of ascorbic and dehydroascorbic acids in fruits
Authors: Taujenis Lukas , Olšauskaitė Vilma , Padarauskas Audrius 
Published: January 2025

In the present study the potential of reversed phase liquid chromatography (RPLC) and hydrophilic interaction chromatography (HILIC) methods combined with tandem mass spectrometry for the determination of L-ascorbic (L-AA) and dehydroascorbic (DHA) acids in fruit samples was investigated and compared. While both separation modes provide good retention and resolution of acids, the HILIC method is considerably stronger affected by a sample matrix. For the RPLC technique no significant matrix effect was observed in any of the 10-fold diluted extracts from fruit matrices tested. In order to avoid matrix effects in HILIC, the extracts required dilution factors of 50–100. Both methods showed acceptable accuracy for the determination of L-AA in fruits. The obtained recoveries of L-AA ranged from 86 to 105% and from 83 to 97% with RPLC and HILIC, respectively. The RPLC system provided satisfactory recoveries (84–108%) of DHA with good precision (RSD ≤ 4.7%), while in HILIC some problems emerged. HILIC was not sensitive enough to quantify DHA in apple and orange samples. In addition, DHA recoveries ranging from 114 to 135% and unacceptable precision with the RSD up to 24% were obtained for all samples with HILIC.
Determination of coumestrol in lucerne by ultra-high pressure liquid chromatography–mass spectrometry
Authors: Taujenis Lukas , Padarauskas Audrius , Cesevičienė Jurgita , Lemežienė Nijolė , Butkutė Bronislava 
Published: January 2025

Ultraefektyvioji skysčių chromatografija su MS detektoriumi pritaikyta kumestroliui nustatyti Lietuvoje auginamuose liucernos augaluose (Medicago sativa ir Medicago lupulina). Kumestrolis buvo ekstrahuojamas 2 mol/L HCl parūgštintu metanolio / vandens (8:2, v/v) tirpalu. Chromatografinis atskyrimas atliktas Acquity BEH C18 kolonėlėje naudojant gradientinę eliuciją metanolio / vandens judria faze su 0,25 % (v/v) acto rūgšties priedu. MS detektuoti naudotas pasirinktų jonų monitoringo režimas ir neigiamų jonų elektropurkštuvinė jonizacija. Išmatuota kalibracinė kreivė tiesinė 0,05–5,00 mg/L kumestrolio koncentracijų intervale. Aptikimo ir nustatymo ribos atitinkamai lygios 0,015 ir 0,05 mg/L. Kumestrolio standartinių priedų išgavos iš liucernos mėginių siekia 88,5–96,1 %, o santykiniai standartiniai nuokrypiai – 4,5–7,2 %.
Produksi Lilin Aromaterapi dari Minyak Jelantah
Authors: Riani Pevi , Syafrinal  , Futeri Renny , Armin M. Ikhlas , Samah Selfa Dewati , Hafnimardiyanti  , Putri Melysa 
Published: January 2025

Telah dilaksanakan kegiatan Program Kemitraan Masyarakat (PKM) di Usaha Ladu Arai Pinang Bunda Kampung Perak Kota Pariaman, Provinsi Sumatra Barat dengan judul “Teknologi Tepat Guna Produksi Lilin Aromaterapi dari Minyak Jelantah”. Mitra kegiatan ini adalah pengusaha Ladu Arai Pinang Bunda Kota Pariaman dengan jumlah peserta 20 orang dan 07 orang instruktur dari Politeknik ATI Padang. Pengabdian dalam bentuk Program Kemitraan Masyarakat (PKM) merupakan program telah diimplementasikan pada pengusaha Ladu Arai Pinang Bunda yang telah mempunyai izin usaha P-IRT 2061377010159 – 26. Ladu Arai Pinang Bunda merupakan salah satu toko oleh-oleh yang cukup dikenal di Kota Pariaman. Ladu Arai Bunda memproduksi ladu arai pinang sebanyak 50 kg setiap minggu dan belum termasuk produksi panganan lainnya seperti rakik kacang, rakik maco, keripik balado dan lain-lain. Berdasarkan produksi tersebut, maka pengusaha tersebut juga menghasilkan hasil samping penggorengan berupa minyak jelantah sebanyak 5 liter dalam sebulan. Proses pembuatan lilin aromaterapi dari minyak jelantah terdiri atas beberapa tahapan yaitu proses penghilangan bumbu, proses netralisasi, proses penjernihan, dan tahapan akhir yaitu pembuatan lilin aromaterapi. Oleh karena itu, Tim PKM memberikan penyuluhan pembuatan lilin aromaterapi dengan memanfaatkan minyak sisa penggorengan produksi. Kegiatan PKM terlaksana dengan baik dan lancar serta sesuai dengan hasil yang diharapkan. Kegiatan ini diharapkan dapat memberikan wawasan, ilmu dan masukan kepada pihak mitra mengenai proses pembuatan lilin aromaterapi dari minyak jelantah sehingga dapat digunakan untuk keperluan sehari-hari dan bahkan dapat dijual oleh pengusaha tersebut.
MODEL KLASTERISASI DAN ANALISIS SISTEM REKOMENDASI KEPADA PENGGUNA PERPUSTAKAAN UNIVERSITAS 17 AGUSTUS 1945 SURABAYA MENGGUNAKAN K-MEANS
Authors: Mochammad Rizki Firmansyah  , Habib Ahmad 
Published: January 2025

Dalam situasi ini, analisis data menjadi alat yang sangat penting untuk memahami minat membaca pengguna dan mengukur minat mereka terhadap sistem rekomendasiperpustakaan. Untuk menganalisis minat membaca pengguna, algoritma pembelajaran mesin K-means dapat digunakanuntuk memberikan informasi yang lebih mendalam dan efektif. Tujuan penelitian ini adalah mengembangkan model clustering menggunakan K-Means untuk menganalisis dan mengklasterkan sistem rekomendasi bagi penggunaperpustakaan melalui top 3 buku pada setiap prodi denganmengelompokkannya berdasarkan 3 digit pertama NIM (Nomor Induk Mahasiswa). K-Means adalah algoritmaclustering yang umum dan mudah dipahami. K-Means clustering adalah algoritma partisi data mining yang populerdan mudah digunakan untuk mengelompokkan data yang tidak berlabel ke dalam kelompok (cluster) berdasarkankesamaan. Algoritma K-Means bekerja denganmengelompokkan data berdasarkan jarak ke centroid dan menghitung ulang centroid berdasarkan cluster yang telahterbentuk. Hasil yang didapat dari pengujian yang telahdilakukan dengan metode K-Means adalah didapatkan 16 jumlah cluster berdasarkan pengelompokkan NIM (NomorInduk Mahasiswa), dari pengelompokan NIM (Nomor IndukMahasiswa) tersebut menghasilkan rekomendasi buku berupa3 judul buku dengan frekuensi peminjaman pada setiappengelompokannya atau clusternya.
Ekstraksi Fitur Menggunakan Scale Invariant Feature Transform untuk Klasifikasi Jenis Sampah
Authors: Ernawati  , Andreswari Desi , Erlansari Aan , Coastera Funny Faraday 
Published: January 2025

Sampah mencakup semua material yang dihasilkan sebagai akibat dari aktivitas manusia dan masyarakat namun telah tidak lagu berfungsi atau sudah tidak digunakan lagi. Dalam pengelolaan sampah, masyarakat perlu memilah sampah sesuai dengan jenis dan sifatnya, sehingga lebih mudah untuk didaur ulang. Proses pemilahan sampah menjadi aktivitas yang berbahaya bagi petugas kebersihan dan masyarakat. Pemilahan sampah berbasis teknologi AI saat ini mampu mengenali jenis sampah berdasarkan citra. Untuk menghasilkan pengenalan citra, perlu dilakukan proses ekstraksi fitur dengan metode SIFT, mengambil fitur khusus dari objek sampah yang dapat menggambarkan karakteristik objek tersebut. Fitur yang diperoleh akan menjadi input pada proses klasifikasi dengan metode K-NN yang akan mengenali sampah berdasarkan jenisnya. Penelitian ini menghasilkan akurasi 56,7% .
Effect of low-dose radiation pre-irradiation on postoperative local chest wall recurrence of breast cancer—A retrospective study
Authors: Zeng Ruifang , Wang Hanyu , Cai Xiaojun , Lin Junhao , Li Pengfei , Zeng Shan , Li Aimin 
Published: January 2025

Purpose
The purpose of this study was to determine the efficacy and safety of low-dose radiotherapy (LDR) for postoperative local chest wall recurrence of breast cancer.

Methods
The records of 52 patients with postoperative local chest wall recurrent breast cancer treated at our cancer center from January 2019 to December 2022. The t-test was used to compare the means of the LDR group and non LDR group. Categorical data were compared using the chi-square test. The Kaplan-Meier method were used to determine the factors associated the survival.

Results
Compared to patients who did not undergo LDR, patients in the LDR group showed a higher incidence of grade I side effects in their skin and soft tissue systems (p = 0.002), a significant reduction in grade II side effects (p < 0.05), and no grade III side effects. Compared with the non LDR group, the complete response rates were 42.3% vs. 38.5%, p = 0.777, the partial response rates were 53.8% vs. 50.0%, p = 0.781, and the objective relief rates were 96.2% vs. 88.5%, p = 0.833, respectively. The 3-year overall survival rate, local recurrence free survival rate, distant metastasis-free survival rate and disease-specific survival rate comparison between LDR group and non LDR group was 54.8% vs. 55.8%, p = 0.845 and 54.2% vs. 52.9%, p = 0.751, 67.9% vs. 51.9%, p = 0.097 and 39.2% vs. 49.6%, p = 0.993, respectively.

Conclusion
Compared with traditional radiotherapy, LDR pre-irradiation has better tolerance and efficacy in patients with local chest wall recurrence of breast cancer after operation.