bluuebunny/crossref_metadata_2025 huggingface dataset:
Ketahanan dan Kualitas Visual Watermarked Image Menggunakan Integer Wavelet Transform (IWT) dan Chinese Remainder Theorem (CRT)
Authors: Harjito Bambang , Kustanti Eka Tri
Published: August 2023

Kemudahan untuk mengakses dan berbagi media digital saat ini menimbulkan kekhawatiran mengenai pelanggaran hak cipta atau pembajakan. Sehingga perlu untuk memberikan identitas kepada setiap media digital agar tidak mudah dibajak atau diklaim oleh pihak-pihak yang tidak bertanggung jawab. Salah satu cara untuk memberikan identitas pada suatu media digital tanpa mengurangi kualitas dari medianya sendiri yaitu dengan menggunakan digital watermarking. Pada paper ini mengusulkan metoda digital watermarking dengan menggunakan gabungan  Integer  Wavelet Transform (IWT) dan Chinese Remainder Theorem (CRT) untuk untuk menghasilkan watermarking dengan kualitas visual dan ketahanan yang baik dari beberapa serangan. Hasil penelitian diperoleh nilai-nilai Peak Signal-to-Noise Ratio (PSNR) mendekati 1 dan Normalized Correlation Coefficient (NCC) sama dengan 0,71337, menunjukkan metode IWT dan CRT mampu menghasilkan watermarked image dengan kualitas visual atau imperceptibility yang baik dan mampu memberikan ketahanan image terhadap beberapa serangan seperti gaussian, salt & pepper dan kompresi JPEG2000 tetapi tidak tahan terhadap serangan rotasi dan kontras karena nilai NCC dibawah 0,5 

Abstract

Today's ease of accessing and sharing digital media raises concerns about copyright infringement or piracy. So it is necessary to give identity to each digital media so that it is not easily hijacked or claimed by irresponsible parties. One way to give identity to a digital media without reducing the quality of the media itself is to use digital watermarking. This paper proposes a digital watermarking method using a combination of Integer Wavelet Transform (IWT) and Chinese Remainder Theorem (CRT) to produce watermarking with good visual quality and resistance from several attacks. The results obtained that Peak Signal-to-Noise Ratio (PSNR)  values are close to 1 and Normalized Correlation Coefficient (NCC)  equal to 0.71337. shows the IWT and CRT methods are able to produce watermarked images with good visual quality or imperceptibility and are able to provide image resistance to several attacks such as gaussian, salt & pepper and JPEG2000 compression but are not resistant to rotation and contrast attacks because the NCC value is below 0.5
Analisis Seleksi Atribut Dalam Memprediksi Kegagalan Skripsi Mahasiswa Menggunakan Algoritme Naïve Bayes pada Jurusan Sistem Informasi Universitas Brawijaya
Authors: Wijoyo Satrio Hadi , Wicaksono Satrio Agung , Herlambang Admaja Dwi
Published: August 2023

Data mining dapat diterapkan pada bidang lembaga atau institusi Pendidikan dan sering disebut juga dengan Educational Data Mining (EDM) yaitu sebuah pengembangan metode dalam mengeksplorasi jenis tipe data pendidikan yang bersifat unik yang bertujuan untuk mempelajari dalam memahami kinerja siswa dan pengaturan lingkungan di tempat siswa belajar. Data mining juga dapat dimanfaatkan untuk analisa seleksi atribut untuk prediksi kegagalan belajar mahasiswa pada perkuliahan. Salah satunya kegagalan dalam menyelesaikan skripsi dengan menggunakan algoritme naïve bayes. Tahapan penelitian ini dimulai dari pengumpulan data, preproses data, implementasi algoritme naïve bayes, pengujian, dan analisa hasil. Data yang digunakan sebanyak 500 data untuk mahasiswa angkatan 2012-2015 dengan 24 atribut. Akurasi tertinggi yaitu algoritme naive bayes dengan menggunakan data latih yang menunjukkan hasil 412 prediksi benar dengan akurasi sebesar 82.4% dan 88 prediksi salah dengan presentasi sebesar 17.6%. Sedangkan hasil seleksi atribut yang telah dilakukan terdapat Lama P2 merupakan atribut dengan rankinging teratas yang mempengaruhi hasil klasifikasi. Abstract Data mining can be applied to the field of educational institutions or institutions and is often referred to as Educational Data Mining (EDM), which is a method development in exploring unique types of educational data types that aim to study in understanding student performance and environmental settings in which students learn. Data mining can also be used to analyze attribute selection for predicting student learning failure in lectures. One of them is the failure in completing the thesis using the naïve Bayes algorithm. The stages of this research started from data collection, data preprocessing, implementation of the Naïve Bayes algorithm, testing, and analysis of the results. The data used is as much as 500 data for students class 2012-2015 with 24 attributes. The highest accuracy is the Naive Bayes algorithm using data training which shows the results of 412 correct predictions with an accuracy of 82.4% and 88 false predictions with a presentation of 17.6%. Meanwhile, the result of attribute selection that has been carried out is that the Old P2 is the attribute with the top ranking that affects the classification results.
Perancangan Rencana Pemulihan Bencana Menggunakan NIST SP 800-34 Rev 1, NIST SP 800-53 Rev 5 dan SNI 8799 (Studi Kasus: Unit TI XYZ)
Authors: Afiansyah Hafizh Ghozie , Sunaringtyas Septia Ulfa , Amiruddin Amiruddin
Published: August 2023

Pada Institut XYZ, unit kerja yang memiliki tanggung jawab untuk mengelola layanan teknologi informasi dan pusat data adalah Unit TI. Berdasarkan Peraturan Pemerintah Nomor 71 Tahun 2019, untuk menanggulangi dampak kehilangan layanan pada pusat data yang disebabkan oleh bencana dan ancaman, diperlukan adanya rencana yang bertujuan untuk mencegah kehilangan dan kerusakan, yaitu rencana pemulihan bencana atau DRP. Hal tersebut didukung dengan kuesioner dan wawancara yang dilakukan kepada jajaran pejabat struktural, kepala unit dan mahasiswa Institut XYZ yang menyatakan bahwa layanan yang dikelola oleh Unit TI XYZ bersifat vital bagi proses bisnis perkuliahan, administrasi umum dan kemahasiswaan. Pada tahun 2021, terjadi kegagalan pada pusat data Unit TI XYZ yang menyebabkan proses perkuliahan daring dan administrasi terhenti karena portal daring yang tidak dapat diakses dan hilangnya data yang disimpan pada penyimpanan awan. Berdasarkan hal tersebut, dilakukan perancangan rencana pemulihan bencana menggunakan NIST SP 800-34 Rev 1 sebagai kerangka kerja penyusunan DRP, NIST SP 800-53 Rev 5 sebagai kendali pencegahan, dan SNI 8799 sebagai acuan persyaratan pusat data. Sebagai hasilnya, disusun enam rencana pemulihan untuk sistem dengan prioritas tinggi, tiga rencana pemulihan untuk sistem dengan prioritas sedang, dan dua rencana pemulihan untuk sistem dengan prioritas rendah.

Abstract

 

At the XYZ Institute, the work unit responsible for managing information technology and data center services is the IT Unit. According to Government Regulation Number 71 of 2019, to overcome the impact of service loss in data centers caused by disasters and threats, it is necessary to have a plan that aims to prevent loss and damage, namely a disaster recovery plan or DRP. This is supported by questionnaires and interviews with structural officials, unit heads, and students of the XYZ Institute, which state that services managed by the IT Unit XYZ are vital for the business processes of lectures, general administration, and student affairs. In 2021, there was a failure in the IT Unit XYZ data center, which caused the online lecture and administration process to stop due to an inaccessible online portal and loss of data stored in cloud storage. Based on the regulation requirement, interviews, and questionnaires, a disaster recovery plan was designed using NIST SP 800-34 Rev 1 as a framework for preparing the DRP, NIST SP 800-53 Rev 5 as a preventive control, and SNI 8799 as a reference for data center requirements. As a result, six recovery plans were developed for high-priority systems, three recovery plans for medium-priority systems, and two recovery plans for low-priority systems.
Implementasi Algoritma BFCC dan kNN pada Embedded System untuk Deteksi Dini Bronchitis
Authors: Perkasa Septiyo Budi , Prasetio Barlian Henryranu , Setiawan Eko , Widasari Edita Rosana , Syauqy Dahnial
Published: August 2023

World Health Organization (WHO) menyatakan bahwa sebanyak 600 juta orang di dunia menderita bronchitis. Bronchitis merupakan salah satu penyakit pernafasan yang dapat disebabkan oleh virus Respiratory Syncitial Virus (RSV) dan Rhinovirus. Gejala umum bronchitis adalah seseorang akan mengalami kesulitan bernafas dengan disertai batuk. Namun, tidak sedikit orang mengabaikan gejala umum ini sehingga berindikasi mengalami bronchitis tingkat berat ataupun berpotensi kematian. Oleh karena itu, dalam paper ini mengusulkan sistem deteksi dini bronchitis berdasarkan suara batuk berbasis embedded system. Ini merupakan terobosan baru pada dunia medis dengan desain alat kesehatan yang portabel. Sistem yang diusulkan menerapkan algoritma Bark Frequency Cepstral Coefficients (BFCC) dan ­K- ­Nearest Neighbor (kNN). BFCC merupakan algoritma yang digunakan untuk mengekstraksi fitur suara batuk dan menghasilkan nilai koefisien cepstral. Selanjutnya, nilai koefisien cepstral tersebut dihitung jarak Euclidean-nya untuk dapat diklasifikasikan menggunakan kNN. Algoritma BFCC dan kNN diimplementasikan pada perangkat Mini Komputer Raspberry Pi 3 Model B+ dengan mikrofon sebagai perangkat masukan suara dan perangkat LCD touchscreen 3.5 inchi untuk sebagai antarmuka yang menampilkan keluaran hasil deteksi. Hasil pengujian menunjukkan rata-rata waktu komputasi sebesar 4,452 detik dan penggunaan CPU sebesar 26%, serta akurasi kNN sebesar 73% untuk perhitungan jarak Euclidean dengan nilai neighbour = 5. AbstractThe World Health Organization (WHO) states that as many as 600 million people in the world suffer from bronchitis. Bronchitis is a disease that can be caused by respiratory syncytial virus (RSV) and rhinovirus. Symptoms of common bronchitis a person will experience difficulty breathing accompanied by coughing. Unfortunately, many people underestimate this common symptom. Even though, it is indicating that they have severe bronchitis or possibly death. Therefore, this study proposes an early detection system for bronchitis based on cough e sounds based on an embedded system. This is a new breakthrough in the medical world with a portable medical device design. The proposed system applied the Bark Frequency Cepstral Coefficients (BFCC) and K-Nearest Neighbor (kNN) algorithms. BFCC is an algorithm that is used to extract cough sound features and produce cepstral coefficient values. Furthermore, the value of the cepstral coefficient will be calculated for the Euclidean distance to be classified using kNN. The implementation of the BFCC and kNN algorithms is carried out on a Raspberry Pi 3 Mini Computer Model B+ with a microphone as a voice input device and a 3.5-inch LCD touchscreen device to display the resulting output interface. The results obtained an average computation time of 4.452 seconds and CPU usage of 26%, and kNN accuracy of 73% from the calculation of the Euclidean distance with a neighbor value = 5.
Prediksi Rating Film IMDb Menggunakan Decision Tree
Authors: Ilmi Rifqy Rosdiyah , Kurniawan Fachrul , Harini Sri
Published: August 2023

Industri Film bukan hanya industri atau pusat hiburan semata melainkan menjadi pusat bisnis global. Popularitas atau kesuksesan film box office  selalu menjadi perhatian di seluruh dunia. Data kesuksesan atau popularitas film saat ini tersedia secara online. IMDb merupakan satu dari sekian situs daring penyedia informasi yang berkaitan dengan film, acara televisi, yang meliputi sinopsis, daftar pemain, ulasan penilaian, dan tentunya pemberian rating film. Keberhasilan film dapat ditandai dengan perolehan rating yang tinggi. Prediksi rating film menjadi topik menarik untuk menilai keberhasilan film baik yang telah diproduksi maupun yang belum diproduksi. Pada penelitian ini, dilakukan prediksi nilai rating film menggunakan metode decision tree. Hasil dari penelitian ini diperoleh kesimpulan bahwa atribut popularitas film dan nilai vote user pada laman IMDb berpengaruh terhadap nilai rating film. Nilai akurasi penggunaan model decision tree pada data training, validasi dan testing bertuturt – turut adalah 0,7529, 0,7237 dan 0,7079. AbstractThe film industry is not just an industry or entertainment but also a global business center. The popularity or success of box office movies has always been a concern around the world. Data on the success or popularity of a movie is currently available online. IMDb is one of the many online sites that provide information related to movies, television shows, which include synopsis, cast lists, rating reviews, and of course movie rating assignments. Prediction of movie ratings is an interesting topic to assess the success of films that have been produced and those that have not been produced. Prediction of movie ratings values can be modeled through machine learning using the decision tree model. From this research, it can be concluded that the popularity of the film and the value of user votes on the IMDb page have an effect on the film rating value. The accuracy values of using the descision tree model in training data, validation and testing are respectively 0.7529, 0.7237 and 0.7079.
Sistem Pendeteksi Sleep-Disordered Breathing Berdasarkan High dan Low Frequency Menggunakan Metode Naïve Bayes
Authors: Ghifari Achmad , Widasari Edita Rosana
Published: August 2023

Tidur merupakan aktivitas dimana otak memberikan tubuh waktu istirahat secara total. Kualitas tidur penting untuk menjaga kondisi fisik maupun mental seseorang. Buruknya kualitas tidur disebabkan oleh gangguan tidur. Gangguan tidur yang paling umum terjadi adalah Sleep-disordered Breathing (SDB) atau Sleep Apnea, dimana penderitanya akan mengalami henti napas secara berulang saat tertidur. Sleep Apnea dikategorikan menjadi 2, yaitu Obstructive Sleep Apnea (OSA) dan Central Sleep Apnea (CSA). Diagnosis gangguan tidur dilakukan dengan Polysomnography yang cenderung mahal dan kurang nyaman. Hasil Polysomnography juga tidak dapat langsung digunakan oleh dokter untuk evaluasi lebih lanjut. Oleh karena itu, pada penelitian ini dibuat sistem pendeteksi gangguan tidur ke dalam kelas Normal, OSA, atau CSA menggunakan sinyal Electrocardiography (ECG) yang diakuisisi dengan teknik 3-lead placement. Sistem ini menggunakan sensor AD8232 dalam mengakuisisi sinyal jantung yang akan diproses oleh Arduino Mega 2560 untuk mendapatkan fitur High dan Low Frequency dari sinyal yang kemudian digunakan untuk klasifikasi. Sistem ini memiliki akurasi sebesar 85% dalam melakukan klasifikasi SDB menggunakan metode Naïve Bayes dengan rata-rata waktu komputasi sebesar 12ms. Sistem ini dapat digunakan di rumah karena bersifat portable dan datanya dapat langsung diunduh melalui websiteuntuk evaluasi dokter, sehingga membuat pasien merasa lebih nyaman dan efisien dalam melakukan diagnosis dini. Abstract Sleep is an activity in which the brain gives the body total rest. The quality of sleep is important to maintain someone's physical and mental condition. Poor sleep quality is caused by sleep disorders. The most common sleep disorder is Sleep-Disordered Breathing (SDB) or Sleep Apnea, in which the sufferer will experience repeated pauses in breathing while asleep. Sleep Apnea is categorized into two, namely Obstructive Sleep Apnea (OSA) and Central Sleep Apnea (CSA). Sleep disorder diagnosis is done with Polysomnography which is expensive and uncomfortable. The result of Polysomnography can also not be directly used by doctors for further evaluation. Therefore, in this research, a system was created to detect sleep disorders into Normal, OSA, or CSA classes using Electrocardiography (ECG) signals acquired by the 3-lead placement technique. This system uses AD8232 sensors to acquire heart signals that are processed by Arduino Mega 2560 to obtain High and Low-frequency features of the signal, which are then used for classification. This system has an accuracy of 85% in classifying SDB using the Naive Bayes method with an average computation time of 12ms. This system can be used at home because it is portable and the data can be directly downloaded from the website for doctor evaluation, making the patient feel more comfortable and efficient in early diagnosis.
RAM-ROM sebagai Pendukung Algoritma Zigzag Scan Menggunakan Metode Pemetaan pada Kompresi Citra Real-Time
Authors: Candra Robby
Published: August 2023

Konsep pengiriman informasi yang meliputi berbagai macam format data dengan proses yang cepat (real-time) semakin dibutuhkan untuk berbagai kebutuhan, hal ini harus didukung dengan infrastruktur yang memadai baik saluran komunikasi, perangkat keras maupun aplikasi yang digunakan. Guna mendukung konsep real-time diperlukan 2 komponen Random Access Memory (RAM) yang dapat menyimpan data sehingga tidak terdapat antrian data. Hal ini bertujuan agar proses scan dapat berlangsung dengan cepat karena proses penulisan dan pembacaan koefisien Discrete Cosine Transform (DCT) dapat dilakukan secara bersamaan di kedua RAM tersebut. Proses yang dilakukan yaitu pada siklus clock yang sama RAM 1 melakukan proses penulisan dan RAM 2 melakukan proses pembacaan, pada siklus clock berikutnya RAM 1 melakukan proses pembacaan dan RAM 2 melakukan proses penulisan, sehingga RAM 1 dan RAM 2 dapat bekeja secara paralel, yaitu melakukan proses penulisan dan pembacaan secara bersamaan agar proses scan koefisien DCT dapat berlangsung dengan cepat. Hasil perancangan prototipe IC RAM dan ROM menggunakan FPGA dapat diimplementasikan untuk proses kompresi citra secara real-time.Â AbstractThe concept of sending information which includes various data formats with fast (real-time) processing is increasingly needed for various needs, this must be supported by adequate infrastructure, both communication channels, hardware and applications used. In order to support the real-time concept, 2 components of Random Access Memory (RAM) are needed which can store data so that there is no data queue. It is intended that the scanning process can take place quickly because the process of writing and reading the Discrete Cosine Transform (DCT) coefficients can be done simultaneously in both RAMs. The process that is carried out is that in the same clock cycle RAM 1 carries out the writing process and RAM 2 performs the reading process, in the next clock cycle RAM 1 carries out the reading process and RAM 2 carries out the writing process, so RAM 1 and RAM 2 can work in parallel, i.e. the process of writing and reading simultaneously so that the DCT coefficient scan process can take place quickly. The results of the IC RAM and ROM prototype design using FPGA can be implemented for real-time image compression process.
Pengembangan Sistem Manajemen Pelatihan Kerja di Kota Surakarta
Authors: Agus Putra Affriza Brilyan Relo Pambudi , Neyman Shelvie Nidya , Rahmawan Hendra
Published: August 2023

Program pelatihan kerja di Pemerintah Kota Surakarta yang ditawarkan oleh Dinas Tenaga Kerja, Dinas Pendidikan, Dinas Perdagangan, Dinas Pemberdayaan Perempuan, Perlindungan Anak dan Pemberdayaan Masyarakat dan Dinas UMKM Koperasi & Industri. Saat ini beberapa instansi pemerintah yang memiliki program pelatihan kerja yang sama masih menggunakan sistem konvensional. Data pengangguran diambil melalui dari Dinas Sosial Kota Surakarta dikirim melalui media sosial WhatshApp sehingga terjadinya tumpang tindih data pengangguran dan pelaksanaan pelatihan kerja. Instansi yang terlibat dalam program pelatihan kerja belum memiliki rencana strategis dan beberapa proses bisnis dilakukan secara manual. Melihat kondisi permasalahan tersebut maka dibutuhkan suatu perencanaan pengembangan sistem pada instansi pemerintah (dalam hal ini Dinas terkait) sistem informasi dianalisis dan dirancang dengan metode prototyping, merupakan bagian proses untuk membagikan program pelatihan kerja di setiap dinas terkait merealisasikan tujuannya. Untuk dapat menerapkan perencanaan yang mengintegrasikan dan menyinkronkan data menjadi sarana Pemerintah Kota Surakarta dapat mengelola sistem manajemen pelatihan kerja. Dari hasil penelitian ini melalui pengujian dengan metode black box untuk mengukur efisiensi, akurasi, validitas data dan kegunaan sistem manajemen pelatihan kerja untuk memastikan tidak terjadinya kembali tumpang tindih data.Â AbstractJob training programs in the Surakarta City Government are offered by the Department of Manpower, the Office of Education, the Office of Commerce, the Office for Women's Empowerment, Child Protection and Community Empowerment, and the Office for MSME, Cooperatives, and Industry. Several government agencies with the same job training program are still using the conventional system. The response data was taken through the Surakarta City Social Service and sent via WhatsApp social media so that there was an overlapping of the response data and the implementation of job training. The agencies involved in the job training program do not yet have a strategic plan and some business processes are carried out manually. Seeing the condition of the problem, it is necessary to have a system development plan for government agencies (in this case the related Office). Information systems are analyzed and designed using the prototyping method, which is part of the process for distributing job training programs in each Service related to utilization. To be able to implement planning that integrates and synchronizes data becomes a means for the Surakarta City Government to manage a job training management system. the results of this study through testing with the black box method for efficiency, accuracy, data validity, and the use of job training management systems to ensure data overlap does not occur again.
Measurement of the Parameters of the RF Gun of the Linear Accelerator of the Siberian Ring Source of Photons
Authors: Ma Xiaochao , Arsentyeva M. A. , Batrakov A. M. , Levichev A. E. , Volkov V. N. , Meshkov O. I. , Maltseva Yu. I. , Nikiforov D. A. , Pavlenko A. V. , Fan Kuanjun
Published: August 2023

The paper analyzes the results of the first experiments to obtain the design parameters of the RF cannon beam of the linear accelerator of the Siberian Ring Synchrotron Radiation Source (SKIF) and describes the diagnostic methods used in this case. The studied parameters include the transverse and longitudinal profiles of the beam, its emittance, energy and energy spread, current, charge and particle losses. The obtained values are compared with the numerical simulation data.
Evolution of the Electronic Structure and Elastic Properties of β-glycine under the Influence of External Hydrostatic Pressure: Quantum Chemical Modeling
Authors: Khainovsky M. A. , Boldyreva E. V. , Tsirelson V. G.
Published: August 2023

The effect of hydrostatic compression on the elastic and electronic properties of β-glycine crystals has been studied by quantum-chemical modeling. A relationship has been established between changes in the microscopic quantum pressure, macroscopic compressibility, and also the geometric and energy characteristics of hydrogen bonds that form the structure of β-glycine crystals before and after the transition to the high-pressure β’-phase.
Comparing the Collision-Induced Dissociation of Trimethyl Lysine+ and Acetyl Lysine-H+
Authors: Barnes George , Kolonko Kristopher , Lucas Kenneth , Chen Amy , Schubmehl Megan
Published: August 2023

Experimental and computational results are reported on the reaction dynamics taking place within the collision-induced dissociation (CID) of Ne,Ne,Ne-Trimethyl-L-lysine+ (TMe-lysine+) and Ne-acetyl-L-lysine-H+ (acetyl-lysine-H+). These common post-translational modifications result in a mass difference of only 0.036 Dalton. Resolving these two species directly requires a high-resolution instrument and they share several CID peaks. Nevertheless, the mechanisms observed are strikingly different, particularly at lower internal energies. Reactivity is higher for acetyl-lysine-H+, with decomposition initiated via losses at the N- and C-termini. In contrast, unmodified lysine and TMe-lysine+ exhibit mechanisms that involve an initial loss of the PTM.
Quasi-direct quantum molecular dynamics: The time-dependent adaptive density-guided approach for potential energy surface construction
Authors: Høyer Nicolai Machholdt , Christiansen Ove
Published: August 2023

We present a new quasi-direct quantum molecular dynamics computational method which offer a compromise between quantum dynamics using a pre-computed potential energy surface (PES) and fully direct quantum dynamics. This method is termed the time-dependent adaptive density-guided approach (TD-ADGA) and is a method for constructing a PES on the fly during a dynamics simulation. This is achieved by acquisition of new single point (SP) calculations and refitting of the PES depending on the need of the dynamics. The TD-ADGA is a further development of the adaptive density-guided approach (ADGA) for PES construction where the placement of SPs is guided by the density of the nuclear wave function. In TD-ADGA, the ADGA framework has been integrated into the time-propagation of the time-dependent nuclear wave function and we use the reduced one-mode density of this wave function to guide when and where new SPs are placed. The PES is thus extended or updated if the wave function moves into new areas or if a certain area becomes more important. We here derive equations for the reduced one-mode density for the time-dependent Hartree (TDH) method and for multi configuration time-dependent Hartree (MCTDH) methods, but the TD-ADGA can be used with any time-dependent wave function method as long as a density is available. The TD-ADGA method has been investigated on molecular systems containing single- and double-minimum potentials and on single- and multi-mode systems. We explore different approaches to handle the fact that the TD-ADGA involves a PES that changes during the computation and show how results can be obtained that are in very good agreement with results obtained by using an accurate reference PES. Dynamics with TD-ADGA is essentially a black box procedure, where only the initialization of the system and how to compute SPs must be provided. The TD-ADGA thus makes it easier to carry out quantum molecular dynamics and the quasi-direct framework opens up the possibility to compute quantum dynamics accurately for larger molecular systems.
Open-shell Magnetic States in Alternant and Non-alternant Nanographenes: Conceptions and Misconceptions
Authors: Zdetsis Aristides
Published: August 2023

In contrast to alternant nanographenes (NGRs), in non-alternant NGRs no “sublattice structure” can be defined associated with significant conceptual and computational simplifications. This leads to some fundamental differences between the two. We uncover here the broken electron-hole symmetry in non-alternant NGRs as one fundamental difference closely related to distorted Dirac points (cones) and their diradical open-shell character. We also show by higher level calculations beyond common DFT that the alternant series of peri-acenes (bisanthene, peri-tetracene, peri-pentacene, … etc.), contrary to opposite reports in the literature, have clearly closed singlet ground states, in contrast to their non-alternant isomers based on Stone-Wales (SW) defects. This is experimentally supported by sub-molecularly resolved STM images. The misconceptions in the literature are due to insufficient correlation. For non-alternant NGRs/GNRs with antiaromatic rings the driving force for open-shell states and distorted Dirac points (involving localized electrons and delocalized holes) is antiaromaticity, which is a sufficient but not always necessary condition. This is in juxtaposition to the aromaticity of the alternant isomers with closed shell states. Thus, in both cases sublattice problems lead to open shell magnetic states; ferromagnetic in cases of sublattice imbalance (e.g. triangulenes), antiferromagnetic for non-sublattice cases (e.g. SW3x2, SW4x2), and non-magnetic (diamagnetic) for balanced sublattices (e.g. AGNRs). Obviously, similar results are expected for larger NGRs/GNRs obtained by concatenation of such SW-motifs.
Simulations of DNA-coordinated light emission vs. intramolecular electron transfer: electron donor-acceptor systems with benzo[a]pyrene derivatives
Authors: Kaushalya Widana , Walker Alice
Published: August 2023

We apply excited state molecular dynamics to a set of substituted guanine-benzo[a]pyrene diol epoxide-cyano-based molecules with push-pull donor-acceptor behaviour. Changing the position of the cyano group tunes fluorescence and charge transfer properties of these systems. Our work provides new rational design principles for creating fluorescent nucleobase derivatives with desired properties.
Strands vs crosslinks: topology-dependent degradation and regelation of polyacrylate networks synthesised by RAFT polymerisation
Authors: Dawson Frances , Kazmi Touseef , Roth Peter , Kopeć Maciej
Published: August 2023

Degradable poly(n-butyl acrylate) networks were synthesised by reversible addition–fragmentation chain transfer (RAFT) polymerisation using a cleavable disulfide diacrylate crosslinker or a cleavable comonomer, dibenzo[c,e]oxepine-5(7H)-thione (DOT). Through the analysis of gelation kinetics, equilibrium swelling ratio and storage modulus, it was found that incorporation of the degradable units in both cases did not significantly impact the mechanical properties of the prepared gels compared to non-degradable controls. While both types of networks were found to readily degrade, either by thiol–disulfide exchange or aminolysis, they produced degradation fragments of different topology, namely monodisperse linear chains in the case of degradable crosslinkers and branched polydisperse fragments in the case of degradable strands. A simple oxidation of thiols to disulfide bonds in air at 30 ºC was successfully used to repolymerise both types of degraded fragments back to solid networks through multiple degradation/regelation cycles. Interestingly, the branched, disperse fragments from degradation of the DOT-containing networks repolymerised more readily and produced networks with properties closer to the original material. This is in contrast to polyacrylate gels made by conventional free radical polymerisation (FRP) which do not degrade through cleavable crosslinks, only through cleavable strands. However, these networks cannot successfully reform after degradation. Furthermore, the apparent dependence of the regelation efficiency on topology of the degraded fragments can open a pathway to better understand reprocessing and recycling of crosslinked polymer networks.
Uniportal Video-assisted Thoracoscopic Talc Pleurodesis in the Treatment of Malignant Pleural Effusions. Is Early Phase Talc Pleurodesis More Effective?
Authors: AKSOY Yunus , SEHİTOGULLARI Abidin
Published: August 2023

Objective: VATS talk pleurodesis is an effective method for palliatively treating malignant pleural effusion (MPE). This study aimed to compare early and late-phase talc pleurodesis procedures and to determine the factors affecting the success of the uniportal VATS talc pleurodesis procedure.

Materials and Methods: The data of 58 patients who underwent uniportal VATS talc pleurodesis due to MPE were analysed retrospectively. The patients were divided into two groups as early-phase talc pleurodesis (n=23, 48.3%) and late-phase (n=25, 51.7%). Groups were compared using Pearson chi-square test and Mann-Whitney U tests.

Results: Complications developed in 10 patients (17.2%). No significant difference was found between the early-phase talc pleurodesis and the late-phase pleurodesis regarding complication rate (p=0.905), durations of hospitalisation (p=0.821). It was observed that the early-phase talc pleurodesis procedure had higher success than the late-phase talc pleurodesis procedure (Odds ratio=1.425, 95%CI=0.307-6.624), although not statistically significant (p=0.06). It was determined that 86% of the patients who underwent early talc pleurodesis had no hospital readmission due to MPE within the first 3 months.

Conclusion: Uniportal VATS talc pleurodesis is a safe and effective treatment method for malignant pleural effusion, with low complication and high success rates. Early-phase talc pleurodesis procedure significantly reduces recurrent hospitalisations.
PERFIL DAS TESES E DISSERTAÇÕES ENVOLVENDO NÚMEROS RACIONAIS NO CATÁLOGO CAPES
Authors: Graça Vagner Viana da , Strohschoen Andreia Aparecida Guimarães
Published: August 2023

Este artigo tem por objetivo apresentar um perfil das teses e dissertações disponíveis no Catálogo da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) produzidas no Brasil envolvendo os números racionais no contexto do currículo do Ensino Fundamental. A busca no sistema CAPES foi realizada a partir das seguintes expressões: “número racional”; “fração”; e, “número decimal”. Trata-se de pesquisa qualitativa na modalidade Estado da Arte. Adotamos como método de pesquisa a aproximação com a revisão de literatura bibliométrica em três etapas: 1) revisão sistemática para coleta de dados de forma organizada e pré-definida; 2) análise bibliométrica por meio de planilhas digitais e criação de gráficos; e 3) análise dos dados da planilha articulando-os com possíveis interpretações dos gráficos bibliométricos. O perfil encontrado indicou foco considerável no sistema semiótico de frações, trazendo, inclusive, abordagens que prejudicam o entendimento de que frações e números decimais são sistemas semióticos numéricos possíveis de representar o mesmo objeto matemático, a saber, números racionais. Logo, existe a real necessidade de se promover estudos sobre números racionais que discutam o ensino desse objeto a partir de atividades de conversão semiótica entre o registro fracionário e o registro decimal.
ИССЛЕДОВАНИЕ МАГНИТНЫХ СВОЙСТВ НАНОЧАСТИЦ ГЕКСАГОНАЛЬНОГО ФЕРРИТА СТРОНЦИЯ
Authors: Ковалев А. И. , Белая Е. А. , Винник Д. А. , Жеребцов Д. А. , Колмогорцев А. М.
Published: August 2023

Осуществлен цитратный метод получения гексаферрита стронция, обладающего формулой SrFe12O19. Особенностью синтеза является сравнительно низкая температура получения – 700 °С. Проведенное исследование методом дифракции рентгеновских лучей выявило однофазное состояние полученного материала вследствие полного совпадения положений дифракционных максимумов на дифрактограмме с положениями на штрихграмме гексаферрита стронция из картотеки ICDD. Микрофотография образца при увеличении 50000 свидетельствует о нанодисперсном состоянии частиц гексаферрита стронция. Метод дифференциальной сканирующей калориметрии выявил точку Кюри, располагающуюся при 450.9 °С. Анализ двух петель гистерезиса, полученных при 300 и 50 К, свидетельствует о полученном монодоменном магнитотвердом материале и росте магнитных характеристик при охлаждении, который замедляется при охлаждении до 100 К. Исследования проводились с помощью дифрактометра Rigaku Ultima IV с использованием излучения CuKa и скоростью съемки 2°/мин, электронного микроскопа JEOL JSM-7001F с энергодисперсионным спектрометром EDS Oxford INCA X-max 80, термоанализатора Netzsch STA449C F1 «Jupiter» при нагреве до 600 °С со скоростью 10 °С/мин в воздушной атмосфере, вибрационного магнитометра Quantum Design PPMS VersaLab при температуре 300 и 50 К с приложенным магнитным полем силой до 3Т.
Striving for Excellence: The Role of Work-Life Balance in Optimizing Job Performance Among Employees in Nepalese Microfinance Institutions
Authors: Lamichhane Basu Dev , Bhaumik Amiya , Gnawali Achyut
Published: August 2023

Purpose: Work-life balance is vital to employee well-being and organizational effectiveness in today's fast-paced, ever-changing workplace. Employee engagement and performance boost Nepal's microfinance industry's financial inclusion and growth. This study examines the relationship of work-life balance, quality of work life, and employee engagement affect microfinance job performance in Nepal. It examines how these characteristics affect employee work performance.
 
Theoretical Framework: The study stresses work-life balance, quality of work life, and employee engagement as independent variables affecting job performance.
 
Design/Methodology/Approach: A 210 respondents from 20 Nepalese microfinance institutions (MFIs) completed structured questionnaires for the quantitative study. Work-life balance, quality of work life, employee engagement, and job performance were examined using questionnaire data.
 
Findings: The findings of the study reveal that work-life balance and employee engagement positively impact job performance. Employees who can strike a healthy balance between work and personal life and are actively engaged in their roles exhibit enhanced job performance.
 
Research, Practical, and Social Implications: This study impacts BFIs, MFIs, regulatory agencies, HR analysts, and planners. These stakeholders may build supportive work environments that encourage employee well-being and organizational success by understanding the essential linkages between work-life balance, quality of work life, employee engagement, and job performance.
 
Originality/Value: The study sheds light on how work-life balance, quality of work life, employee engagement, and job performance affect the Nepalese microfinance industry. The study improves microfinance employee performance and well-being by comprehensively addressing these elements.
Readiness of Accountants in Applying Vietnam Public Sector Accounting Standards: Study in Ho Chi Minh City
Authors: Le Viet
Published: August 2023

Purpose: The purpose of this study is to identify factors affecting the readiness to apply Vietnam public sector accounting standards of accountants.

 

Theoretical framework: By combining behavioral theory including theory of intended behavior, the Technology Acceptance Model and the Institutional isomorphism theory, this study built up a research model over readiness of accountant in application of Vietnam public sector accounting standards in Vietnam.

 

Design/method/approach: This study surveyed 179 experienced accountants who are working in public sector in Ho Chi Minh city, one of the two largest city in Vietnam, to explore factors affecting their readiness by applying PLS-SEM (Partial Least Square - Structural Equation Modeling) to test the hypotheses of the research model.

 

Findings: Results showed that three factors of research model including attitude, perceived usefulness and coercive pressure have impact on readiness of accountant in application of Vietnam public sector accounting standards.

 

Research, Practical & Social implication:  The study successfully tested the role of the attitude variable for the readiness of application, which is ignored by previous research.

 

Originality/value: Research results can help the authorities improve the feasibility and efficiency of the implementation of Vietnam public sector accounting standards. Research results can also help organizations identify issues that need improvement as well as changes in the internal management system to apply Vietnam public sector accounting standards more effectively.
Borderline Kişilik Bozukluğu ve Şema Terapinin Uygulanması Üzerine Sistematik Bir Derleme (A Systematic Review on Borderline Personality Disorder and the Application ofSchema Therapy)
Authors: Sohrabi Arya Khadivi , Karaaziz Meryem
Published: August 2023

Bu derleme çalışmasının amacı borderline kişilik bozukluğu tanısı alan bireylerde şema terapisinin kullanımını incelemektir. Yapılan bu çalışmada sistematik derleme yöntemi kullanılmış olup saha çalışması ya da herhangi bir ölçek kullanılmamıştır. Sadece İngilizce dilinde ele alınan çalışmalar 2006-2022 yılları arasındadır. Bu çalışmalar araştırma makalelerinden oluşmaktadır. Bu derleme çalışması şubat, 2023 ve mayıs, 2023 olmak üzere iki aşamada gerçekleşmiştir. Yapılan literatür taraması sonucunda 6 çalışma ele alınmıştır. Ele alınan bu 6 çalışma sonucunda şema terapinin terapiye devamlılığı arttırıcı ve iyileşmeyi hızlandıran bir terapi yöntemi terapötik ittifak kurabilme açısından etkin bir yöntem olduğu görülmüştür. Borderline kişilik bozukluğu tanısı alan bireylerde şema terapisi uygulandıktan sonra belirtilerin büyük oranda azaldığı ve ortadan kaybolduğu bulunmuştur. Bu sebeple de borderline kişilik bozukluğunun tedavisinde şema terapi etkili bir yöntemdir.
Yemek Eleştirmenliğinin Gastronomiye Olan Etkilerinin Araştırılması (Investigation of the Effects of Food Criticism on Gastronomy)
Authors: Doğan Murat , Öztürk Seray Merve
Published: August 2023

Çalışma ile gastronomi açısından önemli yeri olan yemek eleştirmenliğinin derinlemesine anlaşılması ve gastronomiye olan etkilerinin belirlenmesi amaçlanmıştır. Çalışmada literatür ve doküman incelemesi ve içerik analizi yöntemleri kullanılmıştır. Literatür incelemesi ile yemek eleştirmenliğinin kavramsal çerçevesi ortaya çıkartılmıştır. Literatür ve doküman incelemesi sonucu elde edilen bulgulara içerik analizi uygulanmış ve yemek eleştirmenliğinin gastronomiye etkisi dört ana tema altında kategorize edilmiştir. Temalar incelendiğinde gurmeler ve toplumu yemek konusunda eğiten gastronomlar modern anlamda yemek eleştirmenliğine giden süreci başlatmıştır. Bu bağlamda La Reynière 1802-1812 yılları arasında yemek değerlendirmelerinden oluşan ve kriterlerin oluşmasını sağlayan yıllıklar yayınlanmıştır. 1900’lü yıllarda ise Fransa’da Michelin kardeşler tarafından otel ve restoranlar için kırmızı rehber yayınlamış ve uygulama günümüze kadar gelmiştir. 2000’lerden sonrasında iletişim teknolojilerindeki baş döndürücü gelişmelerle birlikte içeriğini etkileşimli olarak müşterilerin oluşturduğu ve restoran değerlendirmeleri yapan birçok web sitesi kurulmuştur. Sonuç olarak tarihsel süreç izlendiğinde gastronomluk ve gurmelik günümüzde yemek eleştirmenliğine dönüşmüş olmasına rağmen gastronomi alanında henüz iyi bir konum kazanamamıştır.
TANAH ULAYAT DI MINANGKABAU DITINJAU DARI HUKUM ADAT DAN HUKUM ISLAM
Authors: Arysmen Arysmen , Azwar Zainal , Ilham Aldianto , Darmawan Aldy
Published: August 2023

Tulisan ini bertujuan untuk mengetahui tanah ulayat perspektif hukum adat dan hukum Islam. Tulisan ini menggunakan metode kepustakaan (library research) yaitu dilakukan dengan mempelajari, menelaah dan memeriksa bahan-bahan kepustakaan yang relevan dengan pokok pembahasan. Teknik analisis data yang penulis gunakan adalah analisis konten. Hasil tulisan ini menemukan fakta bahwa hukum adat dan hukum Islam berbeda dalam melihat tanah ulayat. Konsep kepemilikan Tanah Ulayat Minangkabau dalam termasuk dalam arti sempit yaitu berupa harta kekayaan yang tergolong pusaka tinggi yang mempunyai kekuatan berlaku ke dalam maupun keluar baik dapat dimanfaatkan oleh anggota masyarakatnya ataupun diluar masyarakatnya dengan pemberian berupa adat diisi limbago dituang (suatu pemberian berupa uang oleh pihak ketiga yang mengelola dan menguasai tanah ulayat, kepada penguasa  dan atau pemilik ulayat berdasarkan kesepakatan masyarakat adanya).
Paramedic recognition of posterior circulation stroke: a vignette and focus group study
Authors: Devlin Shane , Bury Gerard
Published: August 2023

Introduction: The main pre-hospital screening tool used for stroke in Ireland and the United Kingdom is the FAST (face, arms, speech, time) test. However, posterior circulation stroke (PCS) patients may be FAST negative on exam, presenting with sudden dizziness, headaches, visual
problems, nausea and vomiting and balance/co-ordination problems. There is a lack of research into paramedic recognition of PCS, and this study sought to evaluate recognition rates among paramedics (Ps) and advanced paramedics (APs) in Ireland.Methods: A cross-sectional sequential
exploratory design was chosen. An anonymous online survey was carried out, which informed focus group discussions. The survey contained six clinical vignettes, two of which were PCS presentations. Correct diagnosis, hospital destination and type of pre-alert were recorded. Focus groups were
chaired by an independent moderator via Zoom. Recordings were transcribed and thematic analysis was carried out to create codes and themes.Results: One hundred and fifty-one staff members (91 Ps, 60 APs) completed the survey (response rate 40%). Of these, 67% did not recognise PCS
symptoms and 77% did not choose to transport to a stroke unit. For those correctly suspecting PCS, 42% requested resus at the stroke unit and 18% requested resus in the local emergency department (ED). Two focus groups of four practitioners (n = 8) took place. Three main themes were created:
(1) comfort levels with posterior stroke, with subthemes of recognition and personal experiences; (2) education, with subthemes of clinical practice guideline (CPG) issues and training issues; and (3) hospital factors, with subthemes of pre-alerting and disconnect between hospital and emergency
medical services. Participants were uncomfortable with PCS recognition and bypassing their local ED. More training was called for, with a dedicated CPG. Relationships with hospital staff affected willingness to pre-alert.Conclusions: In this sample group, recognition of PCS and
onward transfer to a stroke unit was low. Focus groups showed that practitioners were uncomfortable recognising PCS and bypassing a local ED without adequate training and a dedicated CPG. Relationships with hospital staff also affected pre-alert decisions.
A scoping review exploring the confidence of healthcare professionals in assessing all skin tones
Authors: Harrison Juliet
Published: August 2023

Background: Health inequalities and poorer outcomes have been identified for patients with dark skin tones. The reasons are multi-factorial, but may include delayed treatment due to a lack of recognition of early clinical signs of physiological deterioration. Within the medical
literature there is a light skin tone bias, leading to healthcare professionals having insufficient knowledge regarding the assessment of patients with different skin tones, which may result in reduced confidence and create patient safety issues. The aim of this scoping review was to explore
the confidence levels of healthcare professionals when assessing patients of different skin tones.Methods: The methodology followed scoping review frameworks set out by Arksey and O’Malley (2005), the Joanna Briggs Institute (Peters et al., 2020) and the PRISMA extension for
Scoping Reviews (PRISMA-ScR) (Tricco et al., 2018). Searches for literature were performed between February and June 2022 using electronic databases EBSCO (Academic Search Complete, the Allied Complementary Medicine Database, e-journals, MEDLINE, CINAHL), British Nursing Index (ProQuest),
Scopus, Web of Science, Zetoc, UpToDate, Google Scholar, NICE Evidence, ResearchGate, Opengrey and the British Association of Dermatologists. No date range was specified, expanders were left on and the findings were screened using inclusion and exclusion criteria. Included papers were synthesised
using narrative synthesis.Results: Thirteen papers were identified, and the extracted data charted by the paper’s origin, sample size, profession and confidence levels. Our synthesis revealed reduced confidence in assessing, managing and diagnosing skin conditions in dark
skin tones. A lack of training was cited by different health professionals, but undertaking tailored training and experiential learning increased confidence.Conclusions: There is a safety issue for patients with dark skin tones, as healthcare professionals lack clinical confidence
in managing and treating all ethnicities equally. Tangible diversity within healthcare training is required, supported by inclusive skin tone imagery and appropriate terminology within medical literature.