bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of maize plants as a repellent for Bemisia tabaci (Gennadius) on chili plants
Authors: Witjaksono Witjaksono , Soffan Alan , Akbar Muhammad Aulia 
Published: June 2024

Bemisia tabaci (Gennadius) is crital pest of chili plants. Besides using chemical insecticides to control B. tabaci, the actions that can be taken for B. tabaci management include applying repellent compounds. This research aims to study the potential of various commercial corn varieties in producing repellent compounds for B. tabaci. The method used in this research involved testing the response of B. tabaci using a Y tube olfactometer and GCMS analysis on varieties P-21, Bisi-18, NK-212, and Pertiwi 3 on a laboratory scale. Volatile compounds were collected from corn plants aged 3–10 weeks after planting (WAP). The results showed that Bisi-18, P-21, NK-212, and Pertiwi 3 maize exhibited repellency against B. tabaci. The highest repellency for all corn varieties was observed at 10 WAP. The P-21 variety exhibited 80% repellency, followed by Pertiwi 3 and Bisi-18 with 78% repellency, while NK-212 showed the weakest repellencyat 60%. Results from volatile compounds identification of each maize varieties demonstrated revealed several compounds with repellent properties against B. tabaci, including 9-otadecenoic acid (Z)-, 9-octadecenamide, (Z)-, delta-guaiene, alpha-guaiene, beta caryophyllene, and patchouli alcohol. Using maize plants to manage B. tabaci has the potential to be an environmentally friendly management technique. Further research is needed on B. tabaci management technique to achieve a more effective and efficient combination.
Klasifikasi Jenis Kelengkeng Berdasarkan Daun Menggunakan Convolutional Neural Network Multilayer Perceptron
Authors: Nafiiyah Nur , Prasetyo Puguh Rouf 
Published: June 2024

Research related to the introduction of longan types based on leaves requires increased feature extraction of longan leaves, whether based on features, shape, or texture. Existing research uses more feature extraction processes using color, texture, and shape, so this study proposes the introduction of longan types based on leaf images of all image pixels using the convolution neural network method. This research aims to identify longan species using feature extraction of all leaf image intensities. The image used to identify the type of longan is a color image measuring 128x128. The types of longan studied were itoh, diamond river, and local with a total of 150 training data images and 30 image test data. Longan-type classification results using multilayer perceptron are good. The resulting multilayer perceptron accuracy value is 96.7%. Penelitian terkait pengenalan jenis kelengkeng berdasarkan daun membutuhkan peningkatan ekstraksi fitur daun kelengkeng, baik berdasarkan fitur, bentuk, atau tekstur. Penelitian yang sudah ada lebih banyak proses ekstraksi fitur menggunakan warna, tekstur, dan bentuk sehingga penelitian ini mengusulkan pengenalan jenis kelengkeng berdasarkan citra daun dari seluruh piksel citra dengan metode convolution neural network. Tujuan penelitian ini mengenali jenis kelengkeng menggunakan ekstraksi fitur seluruh intensitas citra daun. Citra yang digunakan untuk mengenali jenis kelengkeng adalah citra warna berukuran 128x128. Jenis kelengkeng yang diteliti adalah itoh, diamond river, dan lokal dengan total seluruh data latih 150 citra dan data tes 30 citra. Hasil klasifikasi jenis kelengkeng dengan menggunakan multilayer perceptron adalah baik. Nilai akurasi multilayer perceptron yang dihasilkan adalah sebesar 96,7%.
Matriks Evaluasi Risiko Penerapan IS/IT Menggunakan Standar ISO 31000:2018 (Studi Kasus: PT XYZ)
Authors: Celesta Ivana , Ismiati Maria Bellaniar 
Published: June 2024

PT XYZ is one of the largest trading companies in Palembang city. PT XYZ utilizes IS/IT to support its business processes. PT XYZ uses computers, LANs, servers, supported applications, and applications made by the IT team. IS/IT implementation at PT XYZ was not always smooth. PT XYZ had experienced problems, such as Wi-Fi problems, applications problems, not updated applications, and other human errors. PT XYZ has concerns that those problems will risk burdening the business processes in the company. The purpose of this research is to analyzee the risk of implementing IS/IT using the ISO 31000:2018 standard. All steps in IS/IT implementation risk management with ISO 31000:2018 standards have been implemented well at PT XYZ. From the results of this study, there are 21 possible risks with the risk management option plan chosen by the company, 10% risk is acceptable, 57% risk can be mitigated, 29% risk must be avoided, and 5% risk will be shared for handling the risk. Handling this risk is expected to assist the company in dealing with IS/IT implementation risks that can occur at any time. PT XYZ ialah salah satu perusahaan dagang terbesar di kota Palembang. PT XYZ memanfaatkan IS/IT untuk menunjang proses bisnisnya. PT XYZ menggunakan komputer, LAN, server, aplikasi pendukung, dan aplikasi buatan tim IT. Penerapan IS/IT di PT XYZ tidak selalu lancer. PT XYZ pernah mengalami kendala, seperti Wifi bermasalah, aplikasi bermasalah dan tidak ter-update, dan human error lainnya. PT XYZ memliki kekuatiran kendala yang sudah pernah terjadi tersebut akan berisiko membebani proses bisnis di perusahaannya. Tujuan penelitian ini adalah untuk menganalisis risiko penerapan IS/IT menggunakan standar ISO 31000:2018. Semua Langkah pada manajemen risiko penerapan IS/IT dengan standar ISO 31000:2018 telah diterapkan dengan baik di PT XYZ. Dari hasil penelitian ini terdapat 21 kemungkinan risiko dengan rencana opsi penanganan risiko yang dipilih perusahaan, yaitu 10% risiko dapat diterima, 57% risiko dapat dimitigasi, 29% risiko harus dihindari, dan 5% risiko akan dibagi untuk penanganan risikonya. Penanganan risiko ini diharapkan dapat membantu perusahaan dalam menghadapi risiko penerapan IS/IT yang dapat terjadi kapan saja.
Desain dan Implementasi Antena Susunan Mikrostrip Patch Persegi Panjang Empat Elemen pada 2,3 GHz Menggunakan Teknik Pencatuan dengan Distribusi Dolph -Tchebyschef
Authors: Angela Dina , Wahyu Yuyu , Porayauw Tony 
Published: June 2024

Penelitian ini melakukan perancangan dan realisasi sebuah antena, yang terdiri atas susunan empat mikrostrip patch persegi panjang yang dicatu secara seri menggunakan distribusi Dolph-Tchebyscheff. Antena ini dirancang untuk dapat bekerja pada frekuensi 2,3 GHz karena frekuensi tersebut digunakan untuk Worldwide Interoperability for Microwave Access (WiMAX) sehingga antena ini dapat digunakan untuk aplikasi WiMAX. Makalah ini menjelaskan proses desain, realisasi, hingga pengukuran. Desain dimulai dengan perhitungan secara teoritis berdasarkan teori desain antena mikrostrip dan teori distribusi Dolph-Tchebyscheff. Kemudian, hasil perhitungan tersebut dioptimalisasi dengan bantuan suatu perangkat lunak desain antena hingga memperoleh karakteristik antena sesuai dengan spesifikasi yang diinginkan. Keluaran akhir dari penelitian ini adalah sebuah prototipe antena susunan mikrostrip patch persegi panjang empat elemen yang bekerja pada frekuensi 2,3 GHz. Parameter antena, seperti VSWR, polarisasi, pola radiasi, bandwidth, dan gain, juga diukur. Pada akhir proses penelitian ini, hasil pengukuran dibandingkan dengan hasil perhitungan teoritis dan simulasi. Antenna array consist of four rectangular microstrip patch antennas with serial feeding using Dolph-Tchebyscheff distribution will be design in this research. This antenna works at 2.3 GHz because the frequency is used for Worldwide Interoperability for Microwave Access (WIMAX) so that the antenna can be applied for WIMAX applications. This paper decribes the process design, realization, and measurement. The design is started with theoritical calculations based on the theory of micristrip antenna design and theory of Dolph-Tchebyscheff distribution. Then, the result of the calculations are optimized using antenna design software to obtain the antenna characteristics according to the desired specifications. The output of this research is a prototype of rectangular microstrip patch antenna array which can work at 2.3 GHz. The antenna parameters, such as VSWR, polarization, radiation pattern, bandwidth, and gain, are measured. At the end of the process, the measurement results are compared with the theoritical calculation and simulation results.
Penerapan Metode Reliability Centered Maintenance (RCM) untuk Menentukan Strategi Perawatan Fasilitas Produksi Kain
Authors: Setiawan Ari , Aritonang Yoon Mac Kinley 
Published: June 2024

PT. IS sebagai perusahaan yang bergerak dalam bidang produksi tekstil dihadapkan pada permasalahan downtime yang berasal oleh kerusakan mesin. Salah satu upaya yang dapat dilakukan untuk meminimasi downtime adalah dengan menyusun strategi perawatan. Reliability Centered Maintenance merupakan metode untuk memilih, mengembangkan, dan membuat alternatif strategi perawatan berdasarkan kriteria operasional, ekonomi dan keamanan. Berdasarkan metode RCM, ditentukan mesin stenter finish pada bagian Dyeing dan Finishing sebagai sistem kritis yang akan dianalisis. Selanjutnya dengan menggunakan metode RCM didapatkan komponen-komponen kritis dari mesin yang seringkali menyebabkan kerusakan downtime machine. Untuk setiap komponen tersebut akan ditentukan jadwal perawatan yang sesuai. Jadwal perawatan untuk masing-masing mode kegagalan dibuat berdasarkan tingkat kekritisan mesin dari nilai severity, occurrence, dan detection setiap mode kegagalan. Jadwal perawatan yang dibuat mencakup jadwal pembersihan komponen, pelumasan, serta pengecekan masing-masing komponen mesin. PT. IS is a textile company faces machine downtime problems. One of the efforts to reduce machine downtime is to develop maintanance strategies. RCM is a method used to choose, develop, and make alternative maintanance strategies based on the operational, economic, adn security criteria. Stenter finish machine is rated as a critical system to be analyzed. Furthermore, by using the RCM method the critical components of the equipment which often cause damage to machine downtime can also be defined. Afterwards, an approriate maintanance shcedule to reduce machine downtime will be develop for each of the component above.
Pengembangan Sistem Penilaian Kualitas Pelayanan dengan Metode Importance Performance Analysis (IPA)
Authors: Sipayung Evasaria , Gunawan Arief Samuel 
Published: June 2024

Rumah Sakit Advent Bandung (RSAB), yang berlokasi di Jl. Cihampelas No. 161, merupakan salah satu rumah sakit swasta yang ada di Jawa Barat. RSAB ingin terus meningkatkan kepuasan pasien dengan memberikan pelayanan yang berkualitas. Kepuasan pasien sangat erat kaitannya dengan pengelolaan terhadap feedback dari pasien. Saat ini RSAB memiliki kesulitan dalam menilai kualitas pelayanan jasa dan tingkat kepuasan pasien terutama dalam hal mengolah feedback dari pasien. Penelitian ini menggunakan metode Importance Performance Analysis (IPA) yang merupakan salah satu metode untuk mengukur tingkat kepuasan pasien (sudut pandang pasien). Penelitian ini menghasilkan sistem penilaian kualitas pelayanan yang dikembangkan dengan menerapkan metode IPA. Sistem yang dikembangkan memiliki kemampuan dalam mengolah data feedback dari pasien menghasilkan informasi yang berguna untuk mengambil keputusan. Hasil penelitian dari pengujian terhadap sistem yang dikembangkan membantu rumah sakit dalam mengolah data feedback dari pasien menjadi informasi untuk pengambilan keputusan peningkatan kualitas pelayanan. Bandung Adventist Hospital (BAH) in Jl. Cihampelas No. 161 is a private hospital located in West Java. BAH want to improve patient satisfaction by providing quality service. Patient satisfaction is very closely related to the management of patient's feedback. BAH have difficulty in assessing the quality of service and level of patient satisfaction, especially in terms of processing patients' feedback into useful information. This research applied Importance Performance Analysis (IPA) method to measure the level of satisfaction from the patient's point of view. This research also generates service quality assessment system developed by applying IPA. The system has ability to process patient's feedback data to produce useful inforrmation for decision making. The result of research from system testing help to process patient's feedback data into useful information fro decision-making to improve the quality of service.
Kecepatan dan Konsensus dalam Keputusan Stratejik di Lingkungan High Velocity: Sebuah Studi Literatur
Authors: Tarigan Samuel 
Published: June 2024

Konsensus dan kecepatan keputusan stratejik adalah dua keluaran proses keputusan yang menjadi konstruk penting dalam proses strategi karena berpengaruh pada kinerja perusahaan (Rajagopalan, Rasheed, dan Datta 1993) terutama di lingkungan high velocity (Eishenhardt, 1989). Studi literatur ini dilakukan dengan cara mengidentifikasi penelitian-penelitian terdahulu menyangkut kedua konstruk tersebut untuk memahami pengaruhnya pada kinerja perusahaan dan anteseden-anteseden dari keduanya. Hasil menunjukkan bahwa 1) baik kecepatan keputusan stratejik maupun konsensus pada umumnya meningkatkan kinerja, dan 2) anteseden keduanya dapat berada pada tingkat individu, tim manajemen puncak, proses, organisasi, dan industri. Penelitian selanjutnya dapat dilakukan secara empirik untuk memahami apakah keduanya dapat dicapai secara bersamaan oleh manajemen puncak sehingga meningkatkan keberhasilan eskekusi strategi (Dooley, Fryxell, dan Judge, 2000), dan kinerja perusahaan secara keseluruhan, terutama di lingkungan high velocity. Consensus and strategic decision making speed are two decision process outcomes that are important in the field of strategy process because their influence on a firm’s performance (Rajagopalan, Rasheed, and Datta 1993), especially in high velocity environment (Eisenhardt, 1989). This literature review was conducted by identifying previous studies on both constructs in order to gain insights on their consequences on firm performance as well as their antecedents. Results show that 1) both strategic decision speed and consensus generally improve firm performance, and 2) their antecedents can be related to individual, top management team, process, organization, or industry factors. Further research can be done empirically in order to build understanding on whether both constructs can be achieved simultaneously by top management team such that the success of strategy execution (Dooley, Fryxell, and Judge, 2000) and the firm’s overall performance can be improved especially in high velocity environment
Pencarian Citra Digital Berbasiskan Konten dengan Ekstraksi Fitur HSV, ACD, dan GLCM
Authors: Agaputra Muhammad Dendy , Wardani Ken Ratri Retno , Siswanto Elisafina 
Published: June 2024

Pencarian citra berbasiskan konten adalah teknik untuk mencari citra yang piksel-pikselnya memiliki karakteristik sama atau mendekati dengan sebuah sekumpulan citra. Penelitian ini menggunakan warna dan tekstur sebagai ekstraksi fitur dari sebuah citra. Untuk warna digunakan dua bentuk pendekatan, yaitu HSV (Hue, Saturation, Value) dan ACD (Average Color Dominance). Sedangkan tekstur menggunakan metode Gray Level Co-occurrence Matrices. Kemudian untuk proses pencocokan antara citra query dengan citra target yang ada pada sekumpulan citra dilakukan perhitungan jarak (Euclidean Distance) dari citra query dengan citra target pada basis data citra. Dari hasil pengujian didapatkan bahwa pencarian citra melalui ekstraksi warna (HSV, ACD) dan tekstur (GLCM) menghasilkan hasil pencarian yang lebih akurat dibanding dengan hanya ekstraksi warna saja atau ekstraksi tekstur saja. Selain itu, citra yang mengandung Point of Interest (POI) tunggal jelas lebih baik dalam pencarian dibandingkan dengan citra yang memiliki banyak POI. Content-based image retrieval is a technique to search for a set of images based on its pixels that have the same characteristics with query image. This research used color and texture as feature extraction of an image. For color, we use two approaches, namely the HSV (Hue, Saturatuin, Value) and ACD (Average Color Dominance), while for the texture, we use the Gray Level Coocurenes Matrices method. The matching process between the query image with the target image is done by calculating the distance by using Euclidean Distance. The experimental results showed that the extraction of image retrieval through color (HSV, ACD) and texture (GLCM) produces more accurate results compared with extraction using color or texture only. In addition, images that have a single and clear Point of Interest (POI) have better result than the image that has a lot of POI.
Bioinformatic analysis and experimental validation of six cuproptosis-associated genes as a prognostic signature of breast cancer
Authors: Chen Xiang , Sun Hening , Yang Changcheng , Wang Wei , Lyu Wenzhi , Zou Kejian , Zhang Fan , Dai Zhijun , He Xionghui , Dong Huaying 
Published: June 2024

Background
Breast carcinoma (BRCA) is a life-threatening malignancy in women and shows a poor prognosis. Cuproptosis is a novel mode of cell death but its relationship with BRCA is unclear. This study attempted to develop a cuproptosis-relevant prognostic gene signature for BRCA.

Methods
Cuproptosis-relevant subtypes of BRCA were obtained by consensus clustering. Differential expression analysis was implemented using the ‘limma’ package. Univariate Cox and multivariate Cox analyses were performed to determine a cuproptosis-relevant prognostic gene signature. The signature was constructed and validated in distinct datasets. Gene set variation analysis (GSVA) and gene set enrichment analysis (GSEA) were also conducted using the prognostic signature to uncover the underlying molecular mechanisms. ESTIMATE and CIBERSORT algorithms were applied to probe the linkage between the gene signature and tumor microenvironment (TME). Immunotherapy responsiveness was assessed using the Tumor Immune Dysfunction and Exclusion (TIDE) web tool. Real-time quantitative PCR (RT-qPCR) was performed to detect the expressions of cuproptosis-relevant prognostic genes in breast cancer cell lines.

Results
Thirty-eight cuproptosis-associated differentially expressed genes (DEGs) in BRCA were mined by consensus clustering and differential expression analysis. Based on univariate Cox and multivariate Cox analyses, six cuproptosis-relevant prognostic genes, namely SAA1, KRT17, VAV3, IGHG1, TFF1, and CLEC3A, were mined to establish a corresponding signature. The signature was validated using external validation sets. GSVA and GSEA showed that multiple cell cycle-linked and immune-related pathways along with biological processes were associated with the signature. The results ESTIMATE and CIBERSORT analyses revealed significantly different TMEs between the two Cusig score subgroups. Finally, RT-qPCR analysis of cell lines further confirmed the expressional trends of SAA1, KRT17, IGHG1, and CLEC3A.

Conclusion
Taken together, we constructed a signature for projecting the overall survival of BRCA patients and our findings authenticated the cuproptosis-relevant prognostic genes, which are expected to provide a basis for developing prognostic molecular biomarkers and an in-depth understanding of the relationship between cuproptosis and BRCA.
Caracterização do perfil de produtores rurais e da produção de pitaya
Authors: Serafim Ulisses , Putti Fernando Ferrari , Natel Andressa Santanna , Góes Bruno César , Barcelos Jéssica Pigatto Queiroz , Pio Leila Aparecida Salles , Silva Adriano Bortolotti da 
Published: June 2024

O agronegócio é atualmente um dos principais setores da economia brasileira e sua potencialidade é evidenciada pelo crescimento da participação no PIB e pela disponibilidade de recursos naturais e condições favoráveis para produção. O Brasil se destaca como terceiro maior produtor de frutas no mundo, mas com um baixo percentual de participação no mercado de exportação. Existe um potencial mercado em ascensão que é a produção e consumo de frutas exóticas como pitaya, mangostão, granadilha dentre outras. Objetivou-se com o presente estudo a caracterização do perfil de produtores de frutos de pitaya presentes no “II Encontro Nacional dos Produtores de Pitaia”. Para tanto, foi realizada uma pesquisa exploratória e a aplicação de um questionário estruturado aos produtores rurais participantes do evento. Os resultados mostraram que, dos produtores entrevistados, aproximadamente a metade possui idade entre 31 a 40 anos e a maioria são proprietários e residem na própria propriedade, possui alto nível de escolaridade, pois 76% são graduados e pós-graduados. A maioria, 80% dos entrevistados, busca na cultura da pitaya uma oportunidade para diversificar a produção e aumentar sua fonte de renda. O canal mais utilizado na busca de soluções e informações para a cultura foi a internet (61%) seguido pela televisão (14%) e a assistência técnica (7%). As principais dificuldades dos produtores estão relacionadas à produção (66%) seguidas pela gestão e comercialização da safra (28%). O canal de comercialização mais utilizado é a venda direta ao consumidor e as redes de supermercados seguidos pela venda ao CEASA e feiras livres.
Bioseparation
Authors: Shaeiwitz Joseph A. , Henry Joseph D. , Ghosh Raja 
Published: April 2012

AbstractThe article contains sections titled:1.Introduction2.Cell Disruption3.Solid–Liquid Separation3.1.Conventional Filtration3.2.Membrane Filtration3.2.1.Promotion of Turbulence3.2.2.Application of Electric Field3.3.Centrifugation3.4.Coagulation and Flocculation4.Product Isolation4.1.Extraction4.2.Adsorption Including Ion Exchange4.2.1.Affinity Adsorption4.2.2.Ion‐Exchange Adsorption4.2.3.Quantitative Analysis4.2.4.Elution4.3.Precipitation4.3.1.Salting Out4.3.2.pH Adjustment4.3.3.Organic Solvents4.3.4.Temperature4.3.5.Polymers and Polyelectrolytes4.3.6.Affinity Precipitation4.4.Solubilization and Refolding4.5.Ultrafiltration5.Purification5.1.Chromatography5.1.1.Gel Filtration Chromatography5.1.2.Affinity Chromatography5.1.3.Reverse Phase and Hydrophobic Interaction Chromatography5.1.4.Quantitative Aspects5.2.Electrical Separations5.2.1.Electrophoresis5.2.2.Isoelectric Focusing and Isotachophoresis5.2.3.Electrodialysis5.2.4.Dielectrophoresis5.3.Magnetic Separations5.4.Membrane Chromatography6.Polishing6.1.Crystallization6.2.Drying and Freeze Drying6.3.Buffer Exchange6.4.Virus and Endotoxin Removal6.5.Removal of Aggregates7.New Bioseparation Strategies
Analysis and Optimization of the Silicone Molding Process Based on Numerical Simulations and Experiments
Authors: Matysiak Lukasz , Kornmann Xavier , Saj Piotr , Sekula Robert 
Published: April 2012

AbstractInjection molding of liquid silicone rubbers (LSR) is widely utilized in the production and insulation of many medium‐ and high‐voltage electrical components. It is dictated mainly by the excellent properties of LSR, ensuring high quality of the final product. However, this also requires a well‐established and controlled manufacturing process. Typically, experimental methods are used to get a detailed knowledge regarding the process and to gain the necessary experience. Unfortunately, such an approach is expensive and time consuming, and minimal marketing time is one of the most important requirements for being competitive. In this connection, an advanced silicone molding simulation tool was successfully developed and validated experimentally. Furthermore, computer simulations were applied to analyze and optimize the process for a selected product, avoiding trial and error methods with the only cost connected to the computational time. An accurate representation of the process required a mathematical approach, among others, consisting of viscosity, pVT, and curing kinetics models that were built up based on rheological, pressure, and calorimetric measurements conducted for a considered silicone material. © 2012 Wiley Periodicals, Inc. Adv Polym Techn 32: E258–E273, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/adv.21272