bluuebunny/crossref_metadata_2025_split huggingface dataset:
Limit cycles of a generalised Mathieu differential system
Authors: Diab Zouhair , Guirao Juan L.G. , Llibre Jaume , Makhlouf Amar 
Published: August 2022

Abstract
We study the maximum number of limit cycles which bifurcate from the periodic orbits of the linear centre ̇x = y, ̇y = −x, when it is perturbed in the form

x
˙

=
y
-
ɛ

(

1
+

cos

l

θ

)

P

(

x
,
y

)

,

y
˙

=
-
x
-
ɛ

(

1
+

cos

m

θ

)

Q

(

x
,
y

)

,

\dot x = y - \varepsilon \left( {1 + {{\cos }^l}\theta } \right)P\left( {x,y} \right),\,\,\,\,\dot y = - x - \varepsilon \left( {1 + {{\cos }^m}\theta } \right)Q\left( {x,y} \right),

where ε > 0 is a small parameter, l and m are positive integers, P(x, y) and Q(x, y) are arbitrary polynomials of degree n, and θ = arctan(y/x). As we shall see the differential system (1) is a generalisation of the Mathieu differential equation. The tool for studying such limit cycles is the averaging theory.
Research on mathematical quantitative model of the incremental cost and income of green small towns based on the whole life cycle
Authors: Zou Ran , Wang Shanshan , Zhang Yu , Yin Mingshan , Arbab Ahmed , Xu Gongwen 
Published: August 2022

Abstract
Over the past few years, green small towns have gained a lot of attention, which is a significant trend in the construction industry. Beginning with the life cycle of green small towns, this paper analyses their incremental cost and income using mathematical quantitative models, which can serve as a reference for further evaluating the incremental cost and benefits of green small towns, and proposes countermeasures and suggestions to encourage the green small town growth.
Mathematical Methodology in the Seismic Resilience Evaluation of the Water Supply System
Authors: Qian Li , Wei Shan , Tianlai Yu , Tiancheng Wang , Mohamed Hamdy 
Published: August 2022

AbstractThis paper has collected more than one hundred papers about resilience at home and abroad, summarised and analysed the meaning and evaluation methods of resilience and then summarised the key issues. Through research on these papers, we found that the current evaluation method for the water supply system seismic resilience is divided into two aspects: on the one hand, it’s based on the seismic performance of water supply system, where the system itself evaluates the resilience absorbs the earthquake resistance level. On the other hand, the assessment is based on the post-earthquake recovery ability of the water supply system, namely the recovery time, recovery degree, recovery path and the resilience level of resources input. Based on past seismic safety of the water supply system and research on post-earthquake recovery ability, the meaning of water supply system in seismic resilience should include two aspects of seismic safety and post-earthquake recovery ability. From using the seismic safety evaluation method also and post-earthquake recovery ability in two angles, this paper gives a comprehensive multiple evaluation index framework of the evaluation model and points out that water system earthquake state resilience evaluative criteria and the requirements of the current seismic code should match.
Realization of Book Collaborative Filtering Personalized Recommendation System Based on Linear Regression Equation
Authors: Gao Yaqi , Yousif Mohammed 
Published: August 2022

Abstract
In the context of information construction, faced with a large number of network information data, in order to obtain more valuable information in an effective time, researchers put forward a recommendation algorithm for information explosion. Because the recommendation algorithm has been successfully applied in many fields such as business, the relevant algorithm system has also begun to be fully implemented in the field of books. There are many kinds of recommendation algorithms, among which collaborative filtering recommendation technology is the most widely used. Therefore, based on the humanized library service concept, this paper mainly studies the influencing factors of reader satisfaction, and on the basis of constructing multiple linear regression model, clarifies the practical significance of constructing collaborative filtering personalized recommendation system for libraries. Then, an improved clustering algorithm is proposed to reduce the dimensionality of the original matrix, and an empirical analysis is made on the book collaborative filtering personalized recommendation system based on linear regression equation by using the operation idea of calculating the score according to the borrowing time. The final results show that, according to the multiple linear regression model between reader satisfaction and its influencing factors, in order to improve library service quality and build a good learning and reading environment, collaborative filtering algorithm should be combined to build a personalized book recommendation system, and this system is feasible in practical application..
Research on indoor environment design of comprehensive commercial shopping center based on numerical simulation
Authors: Ji Hongcheng , Jin Chaohui , Zheng Ran , Al-Juboori Udai Ali 
Published: August 2022

Abstract
With the innovation and development of commercial shopping centers in China, the shopping environment is becoming more and more colorful. However, in today’s social environment, the central function of low-level consumption experience can no longer meet the needs of the masses. Therefore, in the design of indoor environment, we should start from a new perspective, focusing on the difference of internal space and the experience of consumption mode, so as to meet the development needs of commercial shopping in the future. Based on the research on the indoor environment of comprehensive commercial shopping center, comprehensive commercial shopping center in a certain area as the research target, the corresponding mathematical model was constructed, and using the measured method validation build the model of reliability and validity, thus obtains using CFD numerical simulation software of thermal and moisture environment of building an in-depth exploration, The effective countermeasures are put forward for the original air distribution mode. Comparing the improved scheme with the original scheme, it is found that the former can provide effective basis for the interior environment design of similar comprehensive commercial shopping malls.
Haematological and chosen biochemical parameter assessment of the antioxidant system in red deer (Cervus elaphus) blood in early and late pregnancy
Authors: Kulka Marek , Kołodziejska-Lesisz Joanna , Bartosik Justyna , Klockiewicz Maciej , Kluciński Włodzimierz 
Published: August 2022

Abstract

Introduction
The aim of this study was to investigate changes in haematological parameters and the antioxidant system in the early and late pregnancy of red deer (Cervus elaphus).

Material and Methods
Blood samples were collected from 30 red deer females 50 days after impregnation and 40 days before calving. Complete blood counts and stained blood smears were assessed. Paraoxonase 1 (PON1), superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) activities, glutathione disulphide (GSSG), total glutathione, total bilirubin, total protein, albumin, uric acid, malondialdehyde (MDA), beta-hydroxybutyrate (BHB), low-density lipoprotein (LDL), high-density lipoprotein (HDL), triglycerides, cholesterol levels and total antioxidant status (TAS) were measured.

Results
The haematological characteristics of blood collected in the third trimester showed higher haemoglobin levels, haematocrit, mean corpuscular volume (P < 0.05) and a lower mean cell haemoglobin concentration (P < 0.05) in comparison to samples collected on the 50th day after mating. Activity of CAT and MDA, LDL, and triglyceride levels were lower while GR, GSSG, total glutathione, total protein and BHB levels were increased in blood samples drawn in the third trimester compared with the first trimester blood samples. There were no changes in SOD, PON1 activities, TAS, bilirubin, albumin, HDL, cholesterol or uric acid concentrations.

Conclusion
Red deer’s compensatory mechanisms facilitate its optimal adaptation to seasonal changes evidenced by mild pronounced haematological disturbances and an effective antioxidant system during pregnancy.
Se errar, corrija
Authors: Gramacho Wladimir , Garcia Rebeca , Behnke Emilly , Gomes Victor 
Published: August 2022

RESUMO – Este artigo analisa o efeito de notícias com erros gramaticais, corrigidas ou atualizadas sobre a percepção de leitoras e leitores em relação à credibilidade da informação e sobre sua intenção de comportamento associada ao conteúdo dessa notícia. Investigamos esses efeitos em uma notícia sobre a vacinação contra a febre amarela junto a uma amostra de 1.648 indivíduos. Com base num desenho experimental, mensuramos os efeitos do veículo (G1 ou WhatsApp) e de cinco versões de um texto. Os achados mostram que o mesmo texto atribuído ao G1 ou a uma mensagem de WhatsApp foi percebido como mais credível no primeiro caso. Erros gramaticais, atualizações e correções em geral não afetaram a credibilidade da notícia nem a intenção de vacinação das participantes. Quando a notícia é atribuída ao G1, porém, a credibilidade da mensagem “corrigida” é significativamente maior que a credibilidade da mensagem com erros graves de gramática.

ABSTRACT - This article analyzes the effect of news reports containing grammatical errors that have been corrected or updated, how readers perceive the credibility of this information, and their behavioral intention with the content in the news reports. We investigated these effects in a report on yellow fever vaccination with a sample of 1.648 individuals. Based on an experimental research design, we measured the effects of the vehicle (G1 or WhatsApp) and five versions of a text. The findings show that the same text assigned to G1 or a WhatsApp message was perceived as more credible in the first case. Grammatical errors, updates, and corrections, in general, did not affect the credibility of the news or the intention to be vaccinated. When the news is attributed to the G1, however, the credibility of the “corrected” message is significantly higher than the credibility of the message with serious grammar errors.

RESUMEN – Este artículo analiza el efecto de noticias con errores gramaticales, corregidas o actualizadas sobre la percepción de las lectoras y de los lectores con relación con la credibilidad de la información y sobre su intención de comportamiento asociada al contenido de esa noticia. Investigamos esos efectos en una nota sobre la vacunación contra la fiebre amarilla con una muestra de 1.648 individuos. A partir de un diseño experimental, medimos los efectos del medio (G1 o WhatsApp) y de cinco versiones de un texto. Los hallazgos muestran que el mismo texto asociado a G1 o a un mensaje de WhatsApp se percibió como más creíble en el primer caso. Los errores gramaticales, actualizaciones y correcciones generalmente no afectaron la credibilidad de la noticia ni la intención de vacunación. Cuando la noticia se atribuye al G1, todavía, la credibilidad del mensaje “corregido” es significativamente mayor que la credibilidad del mensaje con graves errores gramaticales.
Penerapan QR Code Untuk Media Pelayanan Absensi Mahasiswa AMIK Dian Cipta Cendikia
Authors: Susianto Didi , Astika Reni , Syafitri Yuli 
Published: August 2022

Abstract—Attendance is something that must be done by students. In the attendance process, the AMIK Dian Cipta Cendikia College still uses the manual method. Therefore, we need a student attendance system that can collect data and manage data so that it can be done quickly, efficiently and accurately. One of technology developed is QR Code. QR Code is an essential thing because of its ability to store larger data so that it can provide fast and accurate services. One of the things that can be done to support the author in designing an Application of QR Code for Attendance Service Media for student in AMIK Dian Cipta Cendikia is by using the Extreme Programming research method. The purpose of this application is expected to make the attendance process will be more efficient and can be easily monitored by lecturers and by the academic department. The results of this research were in the form of a student attendance application that uses a QR code. It is used as the input media for student attendance based on a local network implemented in order to create an attendance information system that provides convenience for students in the attendance process, reduces fraud committed by students, and facilitates reports when conducting recapitulation. Abstrak—Absensi merupakan hal yang wajib dilakukan oleh mahasiswa. Dalam Proses absensi, di Perguruan Tinggi AMIK Dian Cipta Cendikia masih menggunakan cara manual. Oleh karena itu, diperlukan suatu sistem absensi mahasiswa yang dapat mengumpulkan dan menyimpan data tersebut sehingga dapat diolah dengan cepat, efisien dan akurat. Salah satu teknologi yang sedang berkembang saat ini adalah QR Code, QR Code sangat dibutuhkan karena kemampuannya menyimpan data yang lebih besar sehingga mampu memberikan layanan yang cepat dan akurat. Salah satu hal yang dapat dilakukan untuk mendukung penulis merancang sebuah Penerapan QR Code Untuk Media pelayanan Absensi Mahasiswa AMIK Dian Cipta Cendikia dengan menggunakan metode penelitian Extreme Programming. Tujuan dari penelitian ini adalah terbentuknya sistem absensi sehingga proses akan lebih efisien dan dapat dipantau dengan mudah oleh dosen dan oleh bagian akademik. Hasil dari penelitian ini berupa aplikasi absensi mahasiswa yang menggunakan QR code sebagai media masukan kehadiran mahasiswa berbasis jaringan lokal yang diimplementasikan agar terciptanya sebuah sistem informasi absensi yang memberikan kemudahan mahasiswa dalam proses absensi, mengurangi tindak kecurangan yang dilakukan oleh mahasiswa, serta memudahkan laporan ketika melakukan rekapan laporan.
Sistem Pelaporan Kesehatan Ibu dan Anak Berbasis Web (Studi Kasus: Desa Sinar Palembang Lampung Selatan)
Authors: Andriasari Sevi , Ferdiansyah Muhammad 
Published: August 2022

Abstract—Nowadays, maternal and child health services on midwife at Sinar Palembang Village continue to face challenges in providing services to patients. To overcome these challenges, one of them is by developing a maternal and child health reporting system. The method used to develop this system is Xtreme Programming (XP) with levels such as design, analysis, planning, implementation, evaluation, deployment and maintenance. As well as the design method with Usecase Diagrams, Activity Diagrams, Class Diagrams and implementation planning. After building an information system to manage maternal and child health reporting, the existing problems can be overcome with a patient data collection system, which can be processed quickly compared to using a manual system, designed and engineered related to the problem which is existed on midwife at Sinar Palembang Village, South Lampung, in in order to improve the quality of services for patients in general, including their services. Abstrak—Saat ini pelayanan kesehatan ibu dan anak di Bidan Desa Sinar Palembang terus menghadapi tantangan dalam memberikan pelayanan kepada pasien. Untuk mengatasi tantangan tersebut, salah satunya dengan mengembangkan sistem pelaporan kesehatan ibu dan anak. Metode yang digunakan untuk mengembangkan sistem ini adalah eXtreme Programming (XP) dengan tingkatan seperti desain, analisis, perencanaan, implementasi, evaluasi, penyebaran dan perawatan. Serta metode perancangan menggunakan Usecase Diagram, Aktivity Diagram, Class Diagram dan perencanaan implementasi. Setelah membangun sistem informasi untuk mengelola pelaporan kesehatan ibu dan anak, permasalahan yang ada dapat diatasi dengan sistem pendataan pasien, yang dapat diolah dengan cepat dibandingkan dengan menggunakan sistem secara manual, dirancang dan direkayasa terkait permasalahannya yang bertempat di Desa Bidan Sinar Palembang Lampung Selatan, dalam rangka meningkatkan kualitas pelayanan bagi pasien secara umum termasuk juga pelayanannya.
Sistem Pendukung Keputusan Untuk Menentukan Customer Segment Pasar Salah Satu UMKM Di Bandung ( Foodendez ) Dengan Metode Decision Tree
Authors: Dewayana Baramukti , Wibowo Ari Purnomo Wahyu 
Published: August 2022

Abstract Foodendez is a UMKM in Bandung which is well known for its products, namely Uthi & Mies Krispi Patin Fish Skin which is a best seller product at Foodendez. This business has been running for about 5 years.In these 5 years Foodendez already has its own customer / market segment for the sale of this Foodendez product, however, this Foodendez has a problem predicting the customer / market segment for product sales from Foodendez, this is not suitable. expected expectations, because in analyzing / predicting customers / market segments still using a simple method or it can only be said to only use initial predictions by guessing roughly what estimates are known from the business plan or by other methods that make this Foodendez product get the wrong customer / segment that market It is expected that before hand or can be said to change and have an effect which makes Foodendez's turn over change insignificantly, and until recently Foodendez has not had a customer / market segment that is truly significant or as expected, for example is the sale of Krispi Patin Fish Skin that is predicted by the customer. the segment is more people > 18 years old but it turns out that < 18 years old people also like Krispi Patin Fish Skin products and offline and online sales where it is predicted that online sales will get a significant gain, which turns out to be more income in offline sales. So the authors provide a solution with the design / scheme of Decision Support Systems that will determine the customer segment and market segment which will later find out which market segment and customer segment are more significant and know which targets are suitable for products from Foodendez so that Foodendez UMKM can know what steps must be taken to set clear and significant targets by looking at the results of the percentage of enthusiasts and the turnover given by the Decision Tree method. The method of activities carried out is taken by collecting data with the interview method. The result of this activity is a Decision Support System design / scheme where the design / scheme is the result of determining a more detailed and significant customer segment / market segment and according to what the owner of Foodendez UMKM wants. Keywords: Decision Tree , Customer Segment , Market Segment , Foodendez , Uthi & Mies
Sistem Repositori Kekayaan Intelektual Sivitas STMIK Ichsan Gorontalo
Authors: Utiarahman Siti Andini , D. Ali Satriadi , Mas Pratama A. Mulawati 
Published: August 2022

Perpustakaan Universitas mempunyai fungsi secara substansional untuk menyimpan informasi dalam repositori intitusi. Saat ini STMIK Ichsan Gorontalo penyimpanan data arsip Tugas Akhir, Skripsi serta penelitian dosen berada diperpustakaan dalam format Ms. Excell. Arsip hardcopy juga terdapat diperpustakaan institusi yang mengakibatkan arsip banyak mengalami kerusakan, hilang dan memakan tempat serta lebih sulit lagi untuk digandakan jika dibutuhkan. Penelitian ini bertujuan untuk membuat sistem repositori kekayaan intelektual berbasis web sivitas STMIK Ichsan Gorontalo untuk media penyimpanan Tugas Akhir, skripsi, jurnal, prosiding konferensi, symposium, majalah, artikel resensi, HKI dan bentuk literatur lainnya yang dapat diakses langsung oleh pengguna baik dimanapun dan kapanpun. Penelitian ini menggunakan Bahasa program PHP dan MySQL sebagai basis data. Desain dana analis sistem menggunakan DAD. Metode penelitian menggunakan metode deskriptif, yakni penelitian yang berusaha untuk memecahkan masalah yang ada saat ini secara sistematis berdasarkan data-data yang ada. Hasil penelitian berdasarkan data yang diperoleh kemudian diujikan menggunakan White Box Testing Dari data yang diperoleh kemudian dibuatkan alur flowgraph. Hasil uji didapatkan V(G) = 7, CC = 7 yang dapat disimpulkan sistem efektif dan efisien secara logika. Pada Black Box Testing, antara fungsi dan hasil didapatkan hasil sesuai.
ANALISA PENGARUH PERUBAHAN SUHU TERHADAP TEGANGAN PANEL SURYA JENIS MONO CHRYSTALLINE KAPASITAS DAYA 50 Wp
Authors: Syah Ezwar , Asri Asri , Bintoro Andik 
Published: August 2022

Secara geografis Indonesia berada pada daerah beriklim tropis yang mempunyai sinar matahari yang berlebih. Pemanfaatan sinar matahari tersebut untuk membangkitkan energi listrik yaitu menggunakan Panel Surya. Panel Surya merupakan elemen semikonduktor yang dapat mengkonversi sinar matahari yang berupa energi surya menjadi energi listrik dengan prinsip fotovoltaik. Intensitas radiasi cahaya matahari dan suhu udara lingkungan mempengaruhi tegangan dan arus yang dibangkitkan panel surya. Jika semakin rendah intensitas radiasi cahaya matahari maka akan rendah pula arus dan tegangan listrik yang dihasilkan panel. Tinggi rendahnya suhu lingkungan disekitar panel surya juga memiliki kontribusi dalam perubahan temperatur pada sel-sel surya. Dari hasil uji di Lhokseumawe menggunakan panel surya jenis Mono chrystalline silicon didapat jika kenaikan temperatur maka tegangan listrik yang dihasilkan oleh panel surya menjadi berkurang. Pengukuran tahap I pada temperatur tertinggi Celsius daya output adalah 31,9 Watt, hasil pengukuran tahap II pada temperatur tertinggi Celsius daya output adalah 32,2 Watt dan hasil pengukuran tahap III pada temperatur tertinggiCelsius daya output adalah 32,1 Watt
PENINGKATAN MODEL OPERASI PENGELOLAAN HULU WADUK UNTUK REDUKSI PENINGKATAN SEDIMEN
Authors: Marhendi Teguh , Azizi Amris , Budiningsih Sulistiyani 
Published: August 2022

Laju erosi dan sedimentasi di hulu waduk Pangsar Soedirman sudah menjadi permasalahan akibat adanya penggunaan lahan yang belum sesuai kaidah konservasi. Hal ini menjadi penyebab terganggunya kapasitas pada tampungan mati Waduk Pangsar Soedirman. Hal ini menyebabkan sedimen yang masuk waduk semakin cepat dan banyak. Sedimen yang mengendap di atas tampungan mati akan mengurangi volume efektif waduk. Peningkatan sedimentasi di waduk pada akhirnya akan mengakibatkan berkurangnya kapasitas pengendalian banjir, produksi listrik dan pangan. Penelitian ini bertujuan untuk untuk mereduksi sedimen masuk di Waduk Pangsar Soedirman Banjarnegara caranya dengan menata DAS Serayu Hulu. Hasil analisis menunjukkan dalam menyusun usulan kegiatan yang dapat mereduksi peningkatan sedimen masuk di Waduk Pangsar Soedirman. Target khusus yang akan dicapai dari penelitian ini adalah untuk mendapatkan suatu langkah yang jelas untuk mengurangi masuknya sedimen ke Waduk Pangsar Soedirman.