bluuebunny/crossref_metadata_2025_split huggingface dataset:
Taguchi Method-Based Synthesis of a Circular Antenna Array for Enhanced IoT Applications
Authors: Amara Wided , Kheder Ramzi , Ghayoula Ridha , El Gmati Issam , Smida Amor , Fattahi Jaouhar , Latrach Lassaad 
Published: January 2025

Linear antenna arrays exhibit radiation patterns that are restricted to a half-space and feature axial radiation, which can be a significant drawback for applications that require omnidirectional coverage. To address this limitation, the synthesis method utilizing the Taguchi approach, originally designed for linear arrays, can be effectively extended to two-dimensional or planar antenna arrays. In the context of a linear array, the synthesis process primarily involves determining the feeding law and/or the spatial distribution of the elements along a single axis. Conversely, for a planar array, the synthesis becomes more complex, as it requires the identification of the complex weighting of the feed and/or the spatial distribution of sources across a two-dimensional plane. This adaptation to planar arrays is facilitated by substituting the direction θ with the pair of directions (θ,ϕ), allowing for a more comprehensive coverage of the angular domain. This article focuses on exploring various configurations of planar arrays, aiming to enhance their performance. The primary objective of these configurations is often to minimize the levels of secondary lobes and/or array lobes while enabling a full sweep of the angular space. Secondary lobes can significantly impede system performance, particularly in multibeam applications, where they restrict the minimum distance for frequency channel reuse. This restriction is critical, as it affects the overall efficiency and effectiveness of communication systems that rely on precise beamforming and frequency allocation. By investigating alternative planar array designs and their synthesis methods, this research seeks to provide solutions that improve coverage, reduce interference from secondary lobes, and ultimately enhance the functionality of antennas in diverse applications, including telecommunications, radar systems, and wireless communication.
Bienvenue dans le monde statistique
Authors: Villani Cédric 
Published: January 2025

Dans notre monde déjà saturé d’informations, lancer une nouvelle revue
ne peut se justifier que si l’on a un point de vue nouveau et pertinent à faire valoir. C’est le pari que fait Statistique et Société. Un pari réaliste ! Car la statistique a envahi notre quotidien, pour le pire et le meilleur.
Insécurité routière : l’apport de l’épidémiologie au débat public
Authors: Laumon Bernard 
Published: January 2025

En sécurité routière, comme dans beaucoup d’autres domaines, l’outil statistique sert, rarement à dénombrer (les tués sur nos routes), le plus souvent à estimer un nombre (de blessés graves), une fréquence (le pourcentage de conducteurs alcoolisés), un sur-risque (par combien je multiplie mon risque si je suis sous l’emprise du cannabis ?), ou l’impact d’une exposition spécifique (combien de victimes attribuables à l’usage du téléphone en conduisant ?).
De par leur dimension chiffrée, ces résultats sont indispensables au débat public et à la décision politique (même si celle-ci repose bien souvent sur d’autres critères, notamment celui de l’acceptabilité sociale). Cet article vise à illustrer ce propos par quelques exemples.
Statistique et recherche interdisciplinaire – Implication d’une discipline sans objet
Authors: Laloë Francis 
Published: January 2025

L’application de la statistique consiste en la recherche de réponses, sous forme de statistiques, à des questions posées en dehors de la discipline. La statistique appliquée est de ce point de vue sans objet propre, exerçant une activité de service. Mais cette «définition » ne suffit pas à caractériser la statistique appliquée. En effet, le champ d’application peut éventuellement s’élargir lorsque le service conduit à produire des résultats relatifs à un domaine plus vaste que celui défini par les questions initiales. La statistique participe alors à la dynamique du questionnement et son rôle dépasse le cadre de l’application pour entrer dans celui de l’implication.
Cet élargissement peut être légitime ou non, selon la nature et le contexte du service initialement demandé, service que le statisticien a accepté de rendre. Les choses peuvent ainsi être très différentes selon qu’il est rendu au sein d’un projet mono disciplinaire où la question relève du point de vue d’une discipline (ou d’une combinaison donnée a priori de disciplines), ou bien qu’il est rendu dans le cadre d’un projet interdisciplinaire dans lequel les points de vues de plusieurs disciplines sur un objet commun peuvent être confrontés.
La contrebande au Brésil
Authors: Rabossi Fernando 
Published: January 2025

Quantifying smuggling in Brazil.
According to the Brazilian media, smuggling seems to have reached alarming proportions since 2014. Or at least, that’s what some actors say. Who are they ? What figures do they present ? In which events do they appear ? This article analyzes the emergence of contraband in the Brazilian public debate, paying attention to the data mobilized, the actors involved, the objectives they pursue and the social consequences that this entails.
Gilbert Saporta : un parcours éclectique Analyse, fouille, science des données. Entretien
Authors: Saporta Gilbert , Stoltz Gilles 
Published: January 2025

Gilbert Saporta : An eclectic career – Data analysis, data mining, data science.
Gilbert Saporta is an emeritus professor at CNAM (Conservatoire National des Arts et Métiers). His main research themes were around data analysis. In this interview, he first recalls the French statistical community in the late 1960s and early 1970s. His best-selling textbook “ Probabilités, analyse des données et statistique” (Probability theory, data analysis and statistics, published in 1980) is then an opportunity to study the semantic evolution of the concept of data analysis to data science via data mining. Finally, we discuss the learned societies of statistics in France in the last 1990s and early 2000s… and we realize that he achieved the grand slam of being the president of each of them !
Observer les pratiques culturelles à l’ère du numérique
Authors: Wolff Loup 
Published: January 2025

Surveying cultural participation in the digital age.
Continued on six occasions from 1973 to 2018, the cultural participation survey is a structuring device for knowledge in the administrative, scientific and even media fields. This article traces the questions that accompanied the renewal of this device for its sixth edition, which began in 2015, until the fieldwork held in 2018 and early 2019. Knowledge tool, but also perceived as an evaluation tool, giving an image often considered unfavorable for the action of public policies, this latest edition nevertheless benefited from increased resources, extending the analysis potential of this survey. The originality of this device, its age, its scientific and statistical legitimacy ensured the continuation of this exceptional initiative.
Ouvrir la boîte noire des statistiques du développement : le groupe AMIRA (Amélioration des méthodes d’investigation en milieu rural africain) dans la revue StatÉco (INSEE)
Authors: Rousset Cyprien , Sessego Ariane 
Published: January 2025

Opening the «Black Box » of Development Statistics : the AMIRA Group (Amelioration of Investigation Methods in Rural Africa) in StatÉco (INSEE).
At the junction between the National Statistics Administration (INSEE), ORSTOM, and the Ministry of Cooperation, the AMIRA Group carried out, between 1975 and 1988, methodological studies on socio-economic statistics in the context of development using an innovative multidisciplinary approach in resonance with the current methodological debates in development economics, but that today appear to have been forgotten. How was this group born ? How can we understand the influence of its reflections on the quantification of the informal sector, statistical units and fieldwork ? And what is its legacy today ? The socio-history of this group can open paths to understanding contemporary practices in development statistics.
Quels outils pour appréhender et analyser les mobilisations de Gilets jaunes et les données issues du Débat national ?
Authors: Antolinos-Basso Diego , Baciocchi Stéphane , Cassor Frédérik , Chanvril-Ligneel Flora , Czerny Estelle , Garcia Guillaume , Garnier Bénédicte , Le Hay Viviane , Lepaux Victor , Pressac Jean-Baptiste , Salze Paul , Savina Yannick 
Published: January 2025

Which tools (do we need) to understand the Yellow Vests movement and analyze the data of the French National Debate ?
This special issue is drawn from a workshop held in Paris on January 16 and 17, 2020, about empirical ways of studying the French Yellow Vests movement and the “ National Debate” it sparked. In this introductory article to this special issue, we take a look back at the origin of the workshop. After putting it back in context – an unprecedented social mobilization and an abundance of analyses in the heat of the moment – we present the methodological questions raised by the study of this movement, from the analysis of social networks to the epistemology of the debate. We then present some of the main results drawn from the articles in the issue (articles that, given the journal, are drawn from empirical experiments usually described as “ quantitative”).
Deep Learning and Methods Based on Large Language Models Applied to Stellar Light Curve Classification
Authors: Li Yu-Yang , Bai Yu , Wang Cunshi , Qu Mengwei , Lu Ziteng , Soria Roberto , Liu Jifeng 
Published: January 2025

Light curves serve as a valuable source of information on stellar formation and evolution. With the rapid advancement of machine learning techniques, they can be effectively processed to extract astronomical patterns and information. In this study, we present a comprehensive evaluation of models based on deep learning and large language models (LLMs) for the automatic classification of variable star light curves, using large datasets from the Kepler and K2 missions. Special emphasis is placed on Cepheids, RR Lyrae, and eclipsing binaries, examining the influence of observational cadence and phase distribution on classification precision. Employing automated deep learning optimization, we achieve striking performance using 2 architectures: one that combines one-dimensional convolution (Conv1D) with bidirectional long short-term memory (BiLSTM) and another called the Swin Transformer. These achieved accuracies of 94% and 99%, respectively, with the latter demonstrating a notable 83% accuracy in discerning the elusive type II Cepheids that comprise merely 0.02% of the total dataset. We unveil StarWhisper LightCurve (LC), a series of 3 LLM models based on an LLM, a multimodal large language model (MLLM), and a large audio language model (LALM). Each model is fine-tuned with strategic prompt engineering and customized training methods to explore the emergent abilities of these models for astronomical data. Remarkably, StarWhisper LC series models exhibit high accuracies of around 90%, considerably reducing the need for explicit feature engineering, thereby paving the way for streamlined parallel data processing and the progression of multifaceted multimodal models in astronomical applications. The study furnishes 2 detailed catalogs illustrating the impacts of phase and sampling intervals on deep learning classification accuracy, showing that a substantial decrease of up to 14% in observation duration and 21% in sampling points can be realized without compromising accuracy by more than 10%.
1380 nm VCSELs using surface-activated bonding of GaAs-based DBRs on a Ge substrate
Authors: Watanabe Tomomasa , Yokozeki Mikihiro , Takanohashi Masashi , Shiomi Michinori , Nakajima Hiroshi , Tanaka Masayuki , Kasahara Daiji , Kobayashi Noriko , Futagawa Noriyuki 
Published: January 2025

Abstract
A wafer-bonded vertical-cavity surface-emitting laser (VCSEL) was demonstrated by surface-activated bonding (SAB) of a GaAs-based distributed Bragg reflector (DBR) on a Ge substrate. Current injection lasing was achieved at the 1380 nm band under continuous-wave operation with AlGaInAs-based multi-quantum wells and a buried tunnel junction for current and optical confinement. The thermal conductivity of the VCSELs bonded by SAB was superior to that of InP VCSELs owing to high heat dissipation of GaAs DBR. This bonding method is suitable for short-wavelength infrared VCSELs and various other applications, including sensing, data communication, and silicon photonics.
Quality of care for migrant populations with type 2 diabetes mellitus: a retrospective analysis of the AMD Annals
Authors: Occhipinti, M.  
Published: January 2025

La presenza di disparità nei pazienti affetti da diabete mellito di tipo 2 (T2D) in base alle regioni geografiche è stata ampiamente ipotizzata; tuttavia, ad oggi, informazioni complete circa la qualità di cura delle popolazioni migranti con diabete sono ancora mancanti. A questo scopo abbiamo analizzati gli indicatori dei dati degli annali AMD 2022, per valutare eventuali disparità di esito o di qualità di cura nei pazienti stranieri rispetto ai pazienti europei. Fra tutti i pazienti con diabete mellito tipo 2 attivi, sono stati selezionati quelli in cui era presente in cartella l’informazione riguardo il paese di origine. È stata utilizzata la classificazione ISTAT per la definizione dell’area geografica di origine e sono stati valutati per singolo paese di provenienza i principali indicatori di processo, di esito intermedio, finale e score Q. Le informazioni sul Paese di origine erano disponibili per 179.536 pazienti con T2D. Di questi il 19.3% presentava una provenienza straniera e i principali paesi di origine per numerosità del campione sono risultati il Nord Africa, Centro-Est Europa, Centro e Sud Asia e Centro- Sud America. I pazienti stranieri sono più giovani con un delta di oltre 20 anni se paragonati ad esempio al Asia centro-meridionale e con conseguente più breve durata di malattia. La valutazione degli indicatori di processo mostra buona aderenza alle indicazioni diabetologiche con minor attenzione al dosaggio della microalbuminuria e allo screening della retinopatia. Complessivamente gli indicatori di intensità/appropriatezza sono risultati più bassi nelle popolazioni provenienti dal Nord ed Ovest Africano e dal Centro e Sud Asia. L’utilizzo di terapie innovative è stato invece paragonabile a quanto accade nella popolazione europea. Lo Score Q medio più basso è risultato nei pazienti dell’Africa occidentale (26,4 ±9,1 vs 29,1±8,0) e la percentuale di pazienti con più basso score Q>25 è stata ritrovata nei pazienti provenienti dall’Asia centrale e meridionale (51,6%) e dell’Africa occidentale (50,1%), ma anche dall’Est Europa (53,1%), con quasi 10 punti percentuali in meno. Complessivamente sono emerse differenze di età, durata di malattia e intensità di trattamento tra i pazienti provenienti da diverse aree geografiche. La tipologia di trattamento offerto mostra un’attenzione ad un utilizzo equo delle terapie farmacologiche ma i risultati, sebbene non così distanti suggeriscono la necessità di interventi terapeutici ancora più mirati a superare le diverse barriere esistenti. PAROLE CHIAVE qualità di cura; popolazione migrante; diabete tipo 2.
PENGARUH DAUN PEPAYA (Carica papaya L) TERHADAP AKTIVITAS SPERMATOGENESIS TIKUS PUTIH (Rattus norvegicus L)
Authors: Kaspul Kaspul 
Published: January 2025

Kontrasepsi yang efektif memerlukan caraÃƒâ€šÃ‚Â yangÃƒâ€šÃ‚Â aman, murah, resiko yang ringan dan bersifat reversible dengan memanfaatkan sumber daya alam nabati, seperti daun pepaya. Penelitian ini bertujuan untuk mengetahui pengaruh jus daun papaya terhadap aktivitas spermatogenesis tikus putih. Dua puluh ekor tikus putih jantan berumur 3 bulan dibagi menjadi 4 kelompok perlakuan, yaitu P1 (tanpa diberi jus daun papaya), P2 (diberi jus daun papaya 5 g per hari), P3 (diberi jus daun papaya 10 g per hari), P4 (diberi jus daun papaya15 g per hari). Semua perlakuan dilakukan selama satu bulan secara oral. Hasil penelitian menunjukkan bahwa jus daun papaya yang diberikan selama satu bulan dapat menurunkan aktivitas spermatogenesis tikus putih.
ANALISIS BIAYA TERAPI STROKE PADA PASIEN RAWAT INAP DI RUMAH SAKIT PKU MUHAMMADIYAH BANTUL YOGYAKARTA
Authors: Baroroh Faridah Baroroh , Fauzi Lailla Affianti 
Published: January 2025

Stroke merupakan penyebab kematian paling tinggi di dunia selain kanker, selain itu terapi stroke juga memerlukan biaya yang besar, sehingga pengatasan tepat sangat diperlukan untuk mengatasinya. Tujuan penelitian untuk mengetahui jenis obat, komponen biaya, dan rata-rata biaya obat terapi stroke perhari rawat inap di RS PKU Muhammadiyah Bantul Yogyakarta. Metode penelitian yang dilakukan adalah deskriptif dengan data retrospektif Januari-Juni 2015 yang memenuhi kriteria inklusi. Analisa biaya dilakukan melalui payers perspective yang difokuskan pada biaya medik langsung. Hasil penelitian menunjukkan dari 130 pasien yang memenuhi kriteria inklusi, 10,4% stroke hemorrhage dan 89,6% stroke non hemorrhage. Jenis obat terapi stroke yang banyak digunakan adalah neuroprotektan citicholine dan piracetam. Komponen biaya terbesar adalah biaya obat, stroke stroke hemorrhage 34.6% dan non hemorrhage 34.7%. Rata-rata biaya obat perhari rawat inap stroke hemorrhage Rp.65.323 ÃƒÂ¢Ã¢â€šÂ¬Ã¢â‚¬Å“ Rp.79.979 dan stroke non hemorrhage Rp.115.384 - Rp.119.723. Rata-rata biaya obat stroke per hari rawat inap pasien stroke hemorrhage dan stroke non hemorrhage menunjukkan tidak ada perbedaan yang signifikan (p>0.05). Kesimpulan penelitian ini adalah jenis obat yang banyak digunakan neuroprotektan citicholine dan piracetam, dengan komponen biaya terbesar adalah biaya obat 34.6% - 34.7% dari biaya total perawatan, serta tidak ada perbedaan yang signifikan (p>0.05) rata-rata biaya obat stroke per hari rawat inap pasien strokeÃƒâ€šÃ‚Â hemorrhage dan stroke non hemorrhage.
INFUSA DAUN RANDU (Ceibapetandragaertn) UNTUK FORMULASI OBAT KUMUR
Authors: Yanti Yuska Novi 
Published: January 2025

Kesehatan pada rongga mulut merupakan suatu hal yang sangat penting bagi manusia terutama pada kegiatan sehari-hari, bau mulut terjadi biasanya disebabkan terjadinya pembusukan atau fermentasi sisa makanan oleh bakteri.Daun randu (Ceibapetandragaertn) merupakan tanaman yang memiliki kandungan flavonoid yang berfungsi sebagai penghambat berkembangnya bakteri, tujuan ini adalah untuk mengetahui apakah infusa daun randu (Ceibapetandragaertn) dapat dijadikan sediaan obat kumur.Formulasi sediaan obat kumur dalam jumlah 3 formula dengan zat aktifnya adalah infusa daun randu dengan menggunakan metode infundasi yaitu penyarian zat aktif pada suhu 900 selama 15 menit, kemudian formulasi obat kumur dibuat dengan kadar infusa yang berbeda yaitu formula 1 2%, formula 2 4%, formula 3 6%. Evaluasi obat kumur dilakukan adalah uji organoleptis, uji pH, uji viskositas, dan uji panelis. Hasil dari evaluasi obat kumur yang dilakukan bahwaÃƒâ€šÃ‚Â infusa daun randu Ãƒâ€šÃ‚Â dapat dibuat obat kumur, dari ke 4 formula obat kumur, infusa daun randu (Ceibapetandragaertn)Ãƒâ€šÃ‚Â mempengaruhi sifat fisik dari obat kumur.
PENETAPAN KADAR FENOLIK TOTAL DAN FLAVONOID TOTAL EKSTRAK BERAS HITAM (Oryza sativa L) DARI KALIMANTAN SELATAN
Authors: Sari Anna Khumaira , Ayuchecaria Noverda 
Published: January 2025

Beras hitam salah satu bahan pangan mengandung senyawa antosianin yang termasuk dalam jenis flavonoid dan senyawa fenolik. Flavonoid yang terkandung dalam beras hitam merupakan komponen fenolik yang bertindak sebagai pencegah radikal hidroksil dan superoksida dengan melindungi lipida membran terhadap reaksi oksidasi yang merusak dan senyawa fenol pula memiliki sifat bakteriosid, antimetik, antihelmintik, antiasmatik, analgetik, antiinflamasi, meningkatkan mortilitas usus, antimikroba, antikanker dan penyakit degeneratif lainnya. Penelitian ini bertujuan untuk mengetahui kadar fenol total dan kadar flavonoid total dalam ekstrak etanol beras hitam. Penetapan kadar fenol total menggunakan metode metoda Folin-Ciocalteu dengan senyawa pembanding asam galat. Sedangkan pada penentuan kadar flavonoid total digunakan metode kolorimetri dengan pereaksi berupa AlCl3 10% dan asam asetat 5%.Jumlah sampel ada tujuh variasi beras hitam yang didapatkanÃƒâ€šÃ‚Â dari tujuh tempat berbeda di Kalimantan Selatan. Analisis kualitatif menunjukkan bahwa seluruh sampel positif mengandung flavonoid, alkaloid dan tanin. Hasil kadar total fenol dari tujuh sampel berturut-turut adalah 100,58Ãƒâ€šÃ‚Â±1,344; 91,14Ãƒâ€šÃ‚Â±1,699; 96,50Ãƒâ€šÃ‚Â±1,529; 77,64Ãƒâ€šÃ‚Â±0,462; 81,16Ãƒâ€šÃ‚Â±0,614; 112,47Ãƒâ€šÃ‚Â±1,040; 81,50Ãƒâ€šÃ‚Â±2,928Ãƒâ€šÃ‚Â mgGAE/mg ekstrak dan hasil persen kadar rata-rata flavonoid total dari tujuh sampel berturut-turut adalah 8,53Ãƒâ€šÃ‚Â±0,208 %; 8,11Ãƒâ€šÃ‚Â±0,343%; 7,69Ãƒâ€šÃ‚Â±0,446%; 6,03Ãƒâ€šÃ‚Â±0,227%; 4,97Ãƒâ€šÃ‚Â±0,169%; 3,74Ãƒâ€šÃ‚Â±0,210%; 5,02Ãƒâ€šÃ‚Â±0,403%.
STANDARDISASI BUAH CABE RAWIT HIYUNG (Capsicum frutescens L.) ASAL TAPIN KALIMANTAN SELATAN
Authors: Sutomo Sutomo , Rahmawati Aulea , Rizki Muhammad Ikhwan 
Published: January 2025

Cabe rawit hiyung (Capsicum frutescens L.) merupakan cabe rawit lokal khas Tapin, Kalimantan Selatan. Penelitian ini bertujuan untuk menentukan nilai parameter standardisasi simplisia dan ekstrak buah cabe rawit hiyung. Standardisasi dilakukan dengan menetapkan nilai parameter spesifik dan non spesifik simplisia dan ekstrak dari tiga tempat tumbuh yang berbeda yang meliputi uji organoleptik simplisia, uji mikroskopik, kadar sari larut etanol, kadar sari larut air, susut pengeringan, kadar abu total simplisia, kadar abu tidak larut asam simplisia, cemaran logam berat, pemerian ekstrak, rendemen, skrining fitokimia, pola kromatografi, penentuan kadar flavonoid total, kadar air, kadar abu total ekstrak, dan kadar abu tidak larut asam ekstrak. Hasil ujiÃƒâ€šÃ‚Â standardisasi simplisia dari ketiga desa diperoleh rata-rata berupa serbuk, berwarna kemerahan, rasa sangat pedas, berbau khas, terdapat sel epidermis, hipodermis dan parenkrim mesokarp, kadar sari larut etanol 19,55 Ãƒâ€šÃ‚Â± 1,07%, kadar sari larut dalam air 32,33 Ãƒâ€šÃ‚Â± 2,03%, susut pengeringan 2,22 Ãƒâ€šÃ‚Â± 0,51%, kadar abu total 4,11 Ãƒâ€šÃ‚Â± 0,44%, kadar abu tidak larut asam 0,14 Ãƒâ€šÃ‚Â± 0,01%, cemaran logam berat Pb 2,00 mg/kg dan Cd 4,00 mg/kg. Hasil uji standardisasi ekstrak dari ketiga desa diperoleh rata-rata berupa ekstrak kental, berwarna coklat, rasa sangat pedas, berbau khas, dengan rendemen sebesar 19,19 Ãƒâ€šÃ‚Â± 1,03%, kandungan kimia yang terkandung adalah alkaloid, flavonoid, fenolik, saponin, pola kromatogram dengan nilai Rf 0,18; 0,60; 0,98, kadar flavonoid total yang paling besar yaitu desa Sungai Rutas 0,339%, kadar air 11 Ãƒâ€šÃ‚Â± 0,67%, kadar abu total 7,96 Ãƒâ€šÃ‚Â± 0,80%, dan kadar abu tidak larut asam 0,61 Ãƒâ€šÃ‚Â± 0,05%.