bluuebunny/crossref_metadata_2025 huggingface dataset:
Sikap Orang Percaya dalam Menghadapi Kesukaran: Refleksi Surat-surat Petrus
Authors: Molina Soleman Daud
Published: February 2023

The background of this paper is the hardships of life that humans experience universally. Life difficulties are facts of human life that cannot be avoided in human life, one of which is the Covid-19 pandemic that has hit the world. In particular, this paper discusses the hardships of life experienced by believers in the letter of Peter. The problematic issue of this problem is the hardships of life experienced by followers of Christ who experienced cruel persecution in the mass of Nero's reign. Whether the hardships of life experienced by believers become a force of faith, or do they leave their faith in Christ because of the suffering they have experienced. To answer this problem the researcher used the literature method with a descriptive qualitative approach, the researcher also conducted studies from several sources in the form of theological journals, theology books related to the theme and used the Bible as the primary source. From the research results, the researcher found the answer that the difficulties of living according to Peter's theology are life difficulties experienced by the Lord's congregation which can prove the purity of their faith, the hardships or sufferings experienced because Christ is the grace of God, the suffering of Christ is an example that must be imitated and follow in his footsteps. suffering for Christ is a joyPenulisan paper ini dilatarbelakangi dengan adanya kesukaran hidup yang dialami manusia secara universal. Kesukaran hidup merupakan fakta-fakta kehidupan manusia yang tidak dapat dihindari dalam kehidupan manusia salah satunya adanya pandemi Covid-19 yang melanda dunia. Secara khusus paper ini membahas kesukaran hidup yang dialami orang percaya dalam surat Petrus, pokok problematis permasalahan ini adalah adanya kesukaran hidup yang dialami oleh pengikut Kristus yang mengalami penganiayaan yang kejam pada massa pemerintahan Nero. Apakah kesukaran hidup yang dialami orang percaya menjadi kekuatan iman, atau sebaliknya mereka meninggalkan iman percaya mereka kepada Kristus karena penderitaan yang mereka alami. Untuk menjawab permasalahan ini peneliti menggunakan metode pustaka dengan pendekatan kualitatif deskriptif, peneliti juga melakukakan kajian dari beberapa sumber berupa jurnal teologi, buku-buku teologi yang berhubungan dengan tema dan menggunakan Alkitab sebagai sumber primer. Dari hasil penelitian, peneliti menemukan jawaban bahwa kesukaran hidup menurut teologi Petrus merupakan  kesukaran hidup yang dialami jemaat Tuhan dapat membuktikan kemurnian iman mereka, kesukaran atau penderitaan yang dialami karena Kristus adalah kasih karunia Allah, penderitaan Kristus adalah sebuah teladan yang harus dicontoh dan mengikuti jejaknya, menderita bagi Kristus adalah suatu kebahagiaan.
Studi Kritis Konsep Mengenal Tuhan: Dualisme Berteologi dalam Bingkai Teori dan Aktualisasi
Authors: Anjaya Carolina Etnasari
Published: February 2023

Kesalahan pemahaman konsep mengenal Tuhan membawa umat percaya pada kegagalan memenuhi kehendak Tuhan. Terjadi dualisme dalam berteologi sebagai usaha mengenal Tuhan antara berteologi hanya sebagai teori, terbatas pada pemikiran intelektual tanpa menghidupi firmanNya dan berteologi dalam aktualisasi yaitu dengan menghidupinya. Penelitian ini memiliki tujuan menggungah umat percaya untuk melakukan pemahaman ulang mengenai konsep mengenal Tuhan yang sesuai dengan Alkitab. Metode yang dipergunakan artikel ini adalah pendekatan kualitatif deskriptif dan dilengkapi dengan observasi di lapangan. Kesimpulan dalam riset ini adalah berteologi dalam usaha mengenal Tuhan secara benar tidak dapat dilepaskan dari aktualisasi yaitu menghidupinya dalam keseharian. Terdapat dua cara melakukan pengenalan Tuhan atau berteologi dalam aktualisasi yaitu: pertama dengan cara interaksi melalui doa- komunikasi yang benar kepada Tuhan, dan kedua dengan cara memperoleh informasi yang didapatkan melalui pembelajaran Alkitab. Kedua cara ini saling terkait satu sama lain dan tetap terus dilakukan seumur hidup umat percaya. Komitmen mengenal Tuhan berlaku selama-lamanya dan dapat dibuktikan melalui buah kehidupan.
Pentingnya Pengembangan Potensi Remaja di Gereja Sebagai Generasi Penerus Gereja dan Bangsa
Authors: Haryani Titik
Published: February 2023

This article shows the importance of developing the potential of youth in the church who will become the next generation of Church and State. Adolescence is a time of growth. The potential of adolescents is also in the process of growth and development. If from a young age they get support in developing their potential, they will be able to develop optimally. So that teenagers will be able to develop themselves as a whole. The church has a responsibility in educating potential youth. Potential that develops optimally will produce masterpieces for teenagers. The potential of the youth will be the next generation of church and state. Adolescents who have potential will be useful for the nation and the state.Artikel ini menunjukkan bahwa pentingnya pembinaan potensi remaja di gereja yang akan menjadi generasi penerus Gereja dan Negara. Masa remaja adalah masa pertumbuhan. Potensi remaja juga sedang dalam pertumbuhan dan perkembangan. Apabila sejak usia remaja mendapatkan dukungan dalam mengembangkan potensinya maka akan dapat berkembang secara maksimal. Sehingga para remaja akan dapat mengembangkan dirinya secara utuh. Gereja memiliki tanggung jawab dalam mendidik potensi remaja. Potensi yang berkembang secara maksimal akan menghasilkan mahakarya bagi para remaja. Potensi yang dimiliki para remaja akan menjadi generasi penerus gereja dan negara. Remaja yang memiliki potensi akan berguna bagi bangsa dan Negara.
Transformasi Injil Dalam Ritus Ma’ dulang di Nosu Sebagai Keyakinan Bahwa Tuhan Ada dan Diresapi dalam Ciptaan-Nya
Authors: Tina Jumreni
Published: February 2023

Tak sedikit orang yang beranggapan bahwa Injil telah hadir mengubah banyak hal dalam berbagai aspek, khususnya dalam hal ritus agama. Kehadiran Injil mengubah dunia secara perlahan. Dalam beberapa kasus penginjil tiba-tiba mengubah suatu keyakinan dan ritus agama yang telah melekat dalam jiwa umat, dan menganggap bahwa ritus yang mereka lakukan sebelumnya bertentangan dengan Injil dan tidak akan memberi keselamatan bagi penganutnya, meskipun dalam perjalanannya keyakinan dan ritus tersebut sudah terbilang cukup lama. Salah satu keyakinan yang melekat dalam diri masyarakat ialah keyakinan akan Aluk to Dolo di kalangan masyarakat Nosu yang hingga saat ini masih dipegang teguh dan diwujudkan melalu sebuah ritus Ma’dulang. Penulis menggunakan metode pendekatan model sintesis yang mengkaji transformasi Injil ke dalam ritus budaya Ma’dulang. Hasil penelitian menunjukkan bahwa pelaksanaan ritus Ma’dulang adalah konsep keliru dalam perspektif teologis, karena seharusnya manusia sadar dengan penuh bahwa Tuhan akan memberi jaminan hidup kekal dalam kerajaan surga. Injil tidak diragukan lagi kebenarannya, tidak perlu didampingi oleh ritus-ritus budaya.
Statistical Analysis of the Dearth of Super-eccentric Jupiters in the Kepler Sample
Authors: Jackson Jonathan M. , Dawson Rebekah I. , Quarles Billy , Dong Jiayin
Published: February 2023

Hot Jupiters may have formed in situ, or been delivered to their observed short periods through one of two categories of migration mechanisms: disk migration or high-eccentricity migration. If hot Jupiters were delivered by high-eccentricity migration, we would expect to observe some “super-eccentric” Jupiters in the process of migrating. We update a prediction for the number of super-eccentric Jupiters we would expect to observe in the Kepler sample if all hot Jupiters migrated through high-eccentricity migration and estimate the true number observed by Kepler. We find that the observations fail to match the prediction from high-eccentricity migration with 94.3% confidence and show that high-eccentricity migration can account for at most ∼62% of the hot Jupiters discovered by Kepler.
Optical Flux and Spectral Variability of BL Lacertae during Its Historical High Outburst in 2020
Authors: Kalita Nibedita , Yuan Yuhai , Gu Minfeng , Fan Junhui , Mizuno Yosuke , Jiang Peng , Gupta Alok C. , Zhou Hongyan , Pan Xiang , Strigachev Anton A. , Bachev Rumen S. , Cui Lang
Published: February 2023

BL Lacertae underwent a series of historical high flux activity over a year from 2020 August in the optical to VHE γ-rays. In this paper, we report on optical flux and spectral variability of the first historical maxima outburst event during October–November in the g, r, and i bands with the 1.26 m telescope at the Xinglong Observatory, China. We detected significant intranight variations with amplitude rising up to ∼30%, where the fastest variability timescale was found to be a few tens of minutes, giving an emitting region size of the order 10−3 pc, which corresponds to ∼100 Schwarzschild radius of the central black hole, likely coming from some jet mini-structures. Unlike on the intranight timescale, a clear frequency-dependent pattern along symmetric timescales (∼11 days) of flux variation is detected on a long timescale. The spectral evolution was predominated by flattening of the spectra with increasing brightness i.e., a bluer-when-brighter trend in 96% of the cases. On the night before the outburst peak, the color indices shown in a color–magnitude diagram, clustered into two distinct branches, within a period of ∼6 hr, which is connected to a hard-soft-hard spectral evolution trend extracted from time-resolved spectra. To the best of our knowledge, such a trend has never been seen in BL Lac or any other blazars before. The results obtained in this study can be explained in the context of shock-induced particle acceleration or magnetic reconnection in the jet where turbulent processes most likely resulted in the asymmetric flux variation on a nightly timescale.
The Clustering Properties of AGNs/Quasars in CatWISE2020 Catalog
Authors: Tiwari Prabhakar , Zhao Gong-Bo , Nusser Adi
Published: February 2023

We study the clustering properties of 1,307,530 AGNs/quasars in the CatWISE2020 catalog prepared using the Wide-field Infrared Survey Explorer and Near-Earth Object Wide-field Infrared Survey Explorer survey data. For angular moments ℓ ⪆ 10 (⪅18°) down to nonlinear scales, the results are in agreement with the standard ΛCDM cosmology, with a galaxy bias roughly matching that of the NRAO VLA Sky Survey (NVSS) AGNs. We further explore the redshift dependence of the fraction of infrared-bright AGNs on stellar mass,

f

IB

∼

M

*

α

0

+

α

1

z

, and find

α

1

=

1.27

−
0.30

+
0.25

, ruling out a nonevolution hypothesis at a ≈4.6σ confidence level. The results are consistent with the measurements obtained with NVSS AGNs, though considerably more precise thanks to the significantly higher number density of objects in CatWISE2020. The excess dipole and high clustering signal above angular scale ≈18° remains anomalous.
Overstable Convective Modes in a Polytropic Stellar Atmosphere
Authors: Hindman Bradley W. , Jain Rekha
Published: February 2023

Within the convection zone of a rotating star, the presence of the Coriolis force stabilizes long-wavelength convective modes. These modes, which would have been unstable if the star lacked rotation, are called overstable convective modes or thermal Rossby waves. We demonstrate that the Sun’s rotation rate is sufficiently rapid that the lower half of its convection zone could possess overstable modes. Further, we present an analytic solution for atmospheric waves that reside within a polytropic stratification. We explore in detail the properties of the overstable and unstable wave modes that exist when the polytrope is weakly unstable to convective overturning. Finally, we discuss how the thermal Rossby waves that reside within the convection zone of a star might couple with the prograde branch of the g modes that are trapped within the star’s radiative zone. We suggest that such coupling might enhance the photospheric visibility of a subset of the Sun’s g modes.
Pseudo-redshifts of Gamma-Ray Bursts Derived from the L–T–E Correlation
Authors: Deng 邓 Chen 晨 , Huang 黄 Yong-Feng 永锋 , Xu 许 Fan 帆
Published: February 2023

The X-ray afterglow of many gamma-ray bursts (GRBs) exhibits a plateau phase before the normal power-law decay stage, which may be related to continued activities of the central engine. Tang et al. collected 174 such GRBs and confirmed the so-called L–T–E correlation which involves three key parameters, i.e., the isotropic γ-ray energy E

γ,iso of the prompt phase, the end time T
a of the plateau phase, and the corresponding X-ray luminosity L
X. In this study, the L–T–E correlation is confirmed and updated as

L

X

∝

T

a

−
0.99

E

γ
,
iso

0.86

with a large sample consisting of 210 plateau GRBs with known redshifts. The tight correlation is then applied to derive the pseudo-redshift of other 130 plateau GRBs whose redshifts are not directly measured. Statistical analysis is also carried out on this pseudo-redshift sample.
GalCEM. I. An Open-source Detailed Isotopic Chemical Evolution Code
Authors: Gjergo Eda , Sorokin Aleksei G. , Ruth Anthony , Spitoni Emanuele , Matteucci Francesca , Fan Xilong , Liang Jinning , Limongi Marco , Yamazaki Yuta , Kusakabe Motohiko , Kajino Toshitaka
Published: February 2023

This is the first of a series of papers that will introduce a user-friendly, detailed, and modular Galactic Chemical Evolution Model, GalCEM, that tracks isotope masses as a function of time in a given galaxy. The list of tracked isotopes automatically adapts to the complete set provided by the input yields. The present iteration of GalCEM tracks 86 elements broken down into 451 isotopes. The prescription includes massive stars, low-to-intermediate-mass stars, and Type Ia supernovae as enrichment channels. We have developed a preprocessing tool that extracts multidimensional interpolation curves from the input yield tables. These interpolation curves improve the computation speeds of the full convolution integrals, which are computed for each isotope and for each enrichment channel. We map the integrand quantities onto consistent array grids in order to perform the numerical integration at each time step. The differential equation is solved with a fourth-order Runge–Kutta method. We constrain our analysis to the evolution of all light and intermediate elements from carbon to zinc, and lithium. Our results are consistent up to the extremely metal-poor regime with Galactic abundances. We provide tools to track the mass rate change of individual isotopes on a typical spiral galaxy with a final baryonic mass of 5 × 1010
M
⊙. Future iterations of the work will extend to the full periodic table by including the enrichment from neutron-capture channels as well as spatially dependent treatments of galaxy properties. GalCEM is publicly available at https://github.com/egjergo/GalCEM.
New species in old mountains: integrative taxonomy reveals ten new species and extensive short-range endemism in Nesticus spiders (Araneae, Nesticidae) from the southern Appalachian Mountains
Authors: Hedin Marshal , Milne Marc A.
Published: February 2023

This revision is based on sampling efforts over the past three decades in the southern Appalachian Mountains which have provided Nesticus (Araneae, Nesticidae) collections of approximately 2100 adult specimens from more than 475 unique collecting events. Using a “morphology first” framework we examined recently collected specimens plus museum material to formulate morphology-based species hypotheses for putative new taxa (discovery phase). Using sequence capture of nuclear ultraconserved elements (UCEs) we analyzed 801 nuclear loci to validate new (and prior) morphology-based species hypotheses (validation phase) and reconstructed a robust backbone phylogeny including all described and new species. Sanger sequencing and UCE-bycatch were also used to gather mitochondrial data for more than 240 specimens. Based on our integrative taxonomic framework ten new Nesticus species are herein described, including N. binfordaesp. nov., N. bondisp. nov., N. caneisp. nov., N. cherokeensissp. nov., N. dellingerisp. nov., N. dykemanaesp. nov., N. jemisinaesp. nov., N. lowderisp. nov., N. roanensissp. nov., and N. templetonisp. nov. Previously unknown males are also described for N. bishopi Gertsch, 1984, N. crosbyi Gertsch, 1984, and N. silvanus Gertsch, 1984, as well as the previously unknown female for N. mimus Gertsch, 1984. Based on combined evidence N. cooperi Gertsch, 1984 is placed in synonymy with N. reclusus Gertsch, 1984. Overall, the montane radiation of Appalachian Nesticus reveals a general lack of species sympatry and compelling biogeographic patterns. Several regional Nesticus taxa are rare, microendemic habitat specialists that deserve conservation attention and detailed future monitoring as conservation sentinels.
Two new Stenaelurillus species (Araneae, Salticidae, Aelurillina) from Western Ghats, India
Authors: Sudhin Puthoor Pattammal , Sen Souvik , Caleb John T. D.
Published: February 2023

Two new species – Stenaelurillus megamalaisp. nov. (♂♀) from the colorful group and Stenaelurillus neyyarsp. nov. (♂♀) from the black and white group – are described from the southern Western Ghats of India. Detailed morphological descriptions, illustrations, as well as the distribution maps are provided. New distributional data for three other species, Stenaelurillus albus Sebastian, Sankaran, Malamel & Joseph, 2015, S. arambagensis (Biswas & Biswas, 1992) and S. wandae Logunov, 2020 are also provided.
Malgré le déploiement du droit des discriminations, les taux de recours demeurent faibles : les enjeux de la mobilisation de l’action en justice
Authors: Latraverse Sophie
Published: February 2023

En France, le droit des discriminations prend son envol par le droit de l’Union européenne, la transposition des directives n os  2000/43, 2000/78, 2006/54 et la création de la Haute Autorité de lutte contre les discriminations (HALDE). En effet, les pouvoirs de la HALDE ont été conçus pour surmonter les blocages auxquels faisait face l’action en justice. En 2015, la place acquise par ce droit dans le paysage juridique est consacrée par l’organisation conjointe d’un colloque sur dix ans de droit de la non-discrimination par la Cour de cassation, le Conseil d’État, le Défenseur des droits et le Conseil national des barreaux. Mais aujourd’hui la mobilisation en soutien aux victimes pour l’accès aux recours reste un point noir, extrêmement difficile à surmonter. C’est dans ce contexte qu’a été créé le Réseau pour agir en justice contre les discriminations pour organiser le soutien au recours par un travail en réseau sur toute la France.
Entre défiance et haine : discourir sur la danse dans l’espace germanique ( XVI e - XVIII e siècle)
Authors: Mourey Marie-Thérèse
Published: February 2023

L’article se penche sur les discours sur la danse ayant marqué l’espace germanique durant un « long » xviie siècle. Au-delà d’une hostilité de principe envers la danse et les spectacles, des exemples choisis permettent de mettre en lumière les conceptions divergentes du corps humain, ainsi que les postulats identitaires face aux modèles étrangers. Ils illustrent aussi la singularité de la situation confessionnelle allemande, et les vives résistances à la sécularisation croissante du monde moderne.
L’affaire du diable. La danse dans la controverse espagnole sur les spectacles
Authors: d’Artois Florence
Published: February 2023

Cet article analyse le statut de la danse dans les textes de la controverse espagnole sur les spectacles au Siècle d’or. Il montre comment la danse est utilisée comme pierre de touche de l’argumentation pour confirmer la condamnation du spectacle ou, au contraire, pour l’éviter, mais au prix de la suppression des danses. En s’attardant plus particulièrement sur la crise déclenchée par la sarabande et les danses théâtrales lascives entre les années 1580 et 1615, en plein âge d’or de la danse de cour, il étudie l’ambiguïté des positions contre la danse, qui affleure derrière l’apparente radicalité du discours polémique.
Du côté des partisans de la danse : place de l’apologie, portraits de l’adversaire dans les textes du XVII e siècle
Authors: Pfister Béatrice
Published: February 2023

Cet article se propose d’étudier l’image de la haine pour la danse que la production textuelle favorable à l’art chorégraphique au xviie siècle dessine en creux. Un travail quantitatif permet d’abord de souligner la place remarquablement restreinte du registre polémique et de l’apologie méthodique de la danse dans ce corpus, la plupart des auteurs dédaignant la controverse pour concentrer leurs efforts sur le perfectionnement de la danse. Puis, l’étude des portraits à charge des ennemis de la danse que brossent les textes apologétiques les plus fervents met au jour des thématiques récurrentes qui révèlent un même désir de présenter la haine pour la danse comme marginale et accidentelle.
Haïr le théâtre, haïr l’opéra, haïr la danse dans la France classique
Authors: Kintzler Catherine
Published: February 2023

Cet article interroge la manière dont, de Bossuet à Rousseau, l’on débat en France de la nécessité de l’insertion de la danse dans différentes pratiques spectaculaires (tragédie, opéra, comédie-ballet). On a pu, tout à tour, haïr la danse par haine du théâtre, mais aussi par amour du théâtre et par haine de l’opéra, et enfin penser avec Cahusac son autonomie et sa nécessité absolue.
A-t-on encore besoin de diplomates ?
Authors: Charliat Martin-Pierre
Published: February 2023

Le métier de diplomate semble remis en question. Ce sont en réalité ses différentes fonctions – représenter, négocier, analyser – qui sont en pleine transformation. Finalement, il est l’art de défendre les intérêts d’une nation et d’œuvrer au service de la paix dans un monde de plus en plus instable.
Une nouvelle réforme des retraites est-elle nécessaire ?
Authors: Zemmour Michaël , Sarthou-Lajus Nathalie
Published: February 2023

Comme en 2010, le projet de réforme des retraites annoncé pour l’année 2023 prévoit un report de l’âge d’ouverture des droits et un allongement de la durée de cotisation. Il s’agirait de travailler plus pour « sauver nos pensions ». Dans quelle mesure le système de retraite actuel est-il réellement en danger ? Entre-t-on dans un nouvel âge de la réforme des retraites, visant la réduction de leur durée et du niveau moyen des pensions ?
Contrer l’islamisme
Authors: Bouzar Dounia , Sinaceur Marwan
Published: February 2023

Les extrémismes qui se réclament de l’islam représentent un défi pour la société française. Les contrer suppose d’en distinguer les diverses composantes : islamisme des Frères musulmans, salafisme non violent et salafisme violent (ou djihadisme). La pratique des auteurs montre que, pour les désamorcer, il est nécessaire de tenir compte de leurs logiques respectives afin de mettre en place des démarches adaptées, au risque d’être, au contraire, contre-productifs.
Enveloppes psychiques et épreuves projectives. Repères méthodologiques et illustration en clinique de l’adolescence
Authors: Saudan Marie , Roman Pascal
Published: February 2023

Le concept d’enveloppe psychique, dont les développements avec la notion de Moi-peau est redevable aux travaux d’Anzieu, trouve un ancrage fécond dans la rencontre avec l’épreuve projective de Rorschach en particulier. Après la présentation de repères théoriques aux fondements des enveloppes psychiques et du Moi-peau, une première partie de l’article sera consacrée à une approche méthodologique visant la définition des observatoires des enveloppes psychiques au Rorschach, prototype historique des épreuves projectives, autour de trois pôles : le traitement du blanc, l’investissement de la symétrie et les scores Barrière et Pénétration. À partir de là, des prolongements en direction d’autres épreuves projectives (thématiques, jeu) seront présentés. Une seconde partie sera l’occasion d’illustrer les enjeux du repérage de la qualité des enveloppes psychiques et de leurs traductions projectives dans une clinique de l’adolescence marquée par ses inscriptions radicales.
Manifeste pour une porosité transitionnelle des enveloppes psychiques dans un groupe de dramathérapie proposé en psychiatrie en milieu pénitentiaire
Authors: Dufeutrelle Sarah , Ravit Magali
Published: February 2023

Nous nous proposons de partager la clinique d’un groupe à médiation dramathérapeutique dans une unité de soin médico-légal Unité d’Hospitalisation Spécialement Aménagée ( uhsa ). Ce dispositif singulier est l’objet d’un travail de recherche doctorale ( crppc , Lyon 2), afin d’en modéliser les processus en jeu dans la rencontre clinique. C’est à travers la conception théorique toujours féconde des enveloppes psychiques (Anzieu, 1974, 1985, Houzel, 1987, 2005) que nous en explorons les enjeux et les limites. Un tel dispositif articule les espaces inter- et intra-subjectifs, à l’instar des groupes thérapeutiques à médiation pensés dans une orientation analytique symboligène. La dimension transubjective s’ajoute également dans la mesure où il s’agit de faire jouer ensemble soignants et soignés dans un lieu où précisément le contrôle pénitentiaire tend à limiter tout mouvement.
La barrière du genre
Authors: Leuret Léopoldine
Published: February 2023

Lors du franchissement des frontières, les femmes sont tantôt perçues comme des victimes à protéger, tantôt comme des clandestines à refouler. Un double regard qui n’est pas sans conséquences.
Quotidien politique
Authors: Groccia Louise
Published: February 2023

Inspirée par la mouvance écoféministe allemande, la sociologue Geneviève Pruvost nous invite à reconsidérer la portée politique des activités quotidiennes nécessaires à notre subsistance. Conscience dont la société industrielle nous a dépossédés.
Ce que la pandémie a changé
Authors: Trépanier Jason
Published: February 2023

Le Covid-19 a bouleversé tant la vie sociale que nos intimités. Que va-t-il rester de la mise à distance provoquée par la pandémie ? Au cœur de l’événement, Anne Muxel, sociologue, s’est penchée sur la question.
Quel choix de système de gestion intégré en PME ? Étude multi-cas des combinaisons de critères de sélection
Authors: Deltour François , Mourrain André
Published: February 2023

La problématique de l’intégration des systèmes d’information est maintenant bien connue, même dans le cas spécifique des PME. L’article avance la connaissance des mécanismes d’adoption des systèmes de gestion intégrés (SGI) en se focalisant sur le moment de la sélection finale, qui peut se caractériser par l’arbitrage suivant : choisir un ERP ou bien choisir un système alternatif ? Cet arbitrage, auquel les PME font face, revient à choisir entre deux types de systèmes dont les capacités d’intégration diffèrent. Afin de comprendre les ressorts de ce choix, la recherche mobilise la méthode d’analyse qualitative comparée (QCA) appliquée à seize cas de PME. Suivant un principe d’équifinalité, cette méthode permet de mettre en évidence différentes combinaisons de critères guidant la sélection par la PME d’un ERP ou bien d’un système alternatif. Les configurations multi-critères identifiées soulignent le rôle central de la complexité comparée des systèmes, en tant que condition nécessaire, mais non suffisante au choix du SGI. Les autres critères (adéquation, compatibilité, coût et engagement de l’intégrateur), selon la manière dont ils sont combinés, vont également influencer le choix au moment de la sélection finale. Ces différentes configurations permettent de discuter les ambitions du projet souhaité par les PME, selon la capacité d’intégration retenue et l’objectif transformationnel visé au moment de la sélection. La recherche offre alors un éclairage renouvelé sur les mécanismes de choix en amont du projet, ces mécanismes ayant des répercussions directes sur la suite du projet dans sa phase d’implémentation.
The minimality of biharmonic hypersurfaces in pseudo-Euclidean spaces
Authors: Du Li , Yuan Xiaoqin
Published: February 2023

In this paper, we investigate the minimality of biharmonic hypersurfaces with some recurrent operators in a pseudo-Euclidean space.
Time fractional analysis of Casson fluid with application of novel hybrid fractional derivative operator
Authors: Rehman Aziz Ur , Riaz Muhammad Bilal , Khan Ilyas , Mohamed Abdullah
Published: February 2023

A new approach is used to investigate the analytical solutions of the mathematical fractional Casson fluid model that is described by the Constant Proportional Caputo fractional operator having non-local and singular kernel near an infinitely vertical plate. The phenomenon has been expressed in terms of partial differential equations, and the governing equations were then transformed in non-dimensional form. For the sake of generalized memory effects, a new mathematical fractional model is formulated based on the newly introduced Constant Proportional Caputo fractional derivative operator. This fractional model has been solved analytically, and exact solutions for dimensionless velocity, concentration and energy equations are calculated in terms of Mittag-Leffler functions by employing the Laplace transformation method. For the physical significance of various system parameters such as $ \alpha $, $ \beta $, $ Pr $, $ Gr $, $ Gm $, $ Sc $ on velocity, temperature and concentration profiles, different graphs are demonstrated by Mathcad software. The Constant Proportional Caputo fractional parameter exhibited a retardation effect on momentum and energy profile, but it is visualized that for small values of Casson fluid parameter, the velocity profile is higher. Furthermore, to validated the acquired solutions, some limiting models such as the ordinary Newtonian model are recovered from the fractionalized model. Moreover, the graphical representations of the analytical solutions illustrated the main results of the present work. Also, from the literature, it is observed that to deriving analytical results from fractional fluid models developed by the various fractional operators is difficult, and this article contributes to answering the open problem of obtaining analytical solutions for the fractionalized fluid models.
Research on fault diagnosis technology of heat meter based on multi classifier fusion of pigeon swarm algorithm
Authors: Yu Shuchun , Tao Jinjian , Liu Jun , Miao Yanshu
Published: February 2023

In order to improve the availability of fault data, the fault data of heat meters had been classified, and balances all kinds of fault data according to interpolation algorithms to meet the needs of fault diagnosis algorithms. Based on the voting mechanism, an integrated model of multi classifier fusion is established, and the weight of each classifier is optimally configured through pigeon swarm algorithm. In the experiment, three kinds of integration models are obtained according to the voting mechanism and pigeon swarm algorithm. The three integrated models are used to diagnose the fault of the heat meter, and the three indicators of precision, recall and F1 Core have achieved satisfactory results.
Fault-tolerant control for nonlinear systems with a dead zone: Reinforcement learning approach
Authors: Wang Zichen , Wang Xin
Published: February 2023

This paper focuses on the adaptive reinforcement learning-based optimal control problem for standard nonstrict-feedback nonlinear systems with the actuator fault and an unknown dead zone. To simultaneously reduce the computational complexity and eliminate the local optimal problem, a novel neural network weight updated algorithm is presented to replace the classic gradient descent method. By utilizing the backstepping technique, the actor critic-based reinforcement learning control strategy is developed for high-order nonlinear nonstrict-feedback systems. In addition, two auxiliary parameters are presented to deal with the input dead zone and actuator fault respectively. All signals in the system are proven to be semi-globally uniformly ultimately bounded by Lyapunov theory analysis. At the end of the paper, some simulation results are shown to illustrate the remarkable effect of the proposed approach.
Structure analysis of the attracting sets for plankton models driven by bounded noises
Authors: Ke Zhihao , Xu Chaoqun
Published: February 2023

In this paper, we study the attracting sets for two plankton models perturbed by bounded noises which are modeled by the Ornstein-Uhlenbeck process. Specifically, we prove the existence and uniqueness of the solutions for these random models, as well as the existence of the attracting sets for the random dynamical systems generated by the solutions. In order to further reveal the survival of plankton species in a fluctuating environment, we analyze the internal structure of the attracting sets and give sufficient conditions for the persistence and extinction of the plankton species. Some numerical simulations are shown to support our theoretical results.
Rational-approximation-based model order reduction of Helmholtz frequency response problems with adaptive finite element snapshots
Authors: Bonizzoni Francesca , Pradovera Davide , Ruggeri Michele
Published: February 2023

We introduce several spatially adaptive model order reduction approaches tailored to non-coercive elliptic boundary value problems, specifically, parametric-in-frequency Helmholtz problems. The offline information is computed by means of adaptive finite elements, so that each snapshot lives in a different discrete space that resolves the local singularities of the analytical solution and is adjusted to the considered frequency value. A rational surrogate is then assembled adopting either a least-squares or an interpolatory approach, yielding a function-valued version of the the standard rational interpolation method ($ \mathcal{V} $-SRI) and the minimal rational interpolation method (MRI). In the context of building an approximation for linear or quadratic functionals of the Helmholtz solution, we perform several numerical experiments to compare the proposed methodologies. Our simulations show that, for interior resonant problems (whose singularities are encoded by poles on the real axis), the spatially adaptive $ \mathcal{V} $-SRI and MRI work comparably well. Instead, when dealing with exterior scattering problems, whose frequency response is mostly smooth, the $ \mathcal{V} $-SRI method seems to be the best-performing one.
A numerical method based on barycentric interpolation collocation for nonlinear convection-diffusion optimal control problems
Authors: Huang Rong , Weng Zhifeng
Published: February 2023

This paper describes a study of the barycentric interpolation collocation method for the optimal control problem governed by a nonlinear convection-diffusion equation. Using Lagrangian multipliers, we obtain the continuous optimality system which is composed of state equations, adjoint equations and optimality conditions. Then, barycentric interpolation collocation methods are applied to discretize the optimality system and the nonlinear term is treated by Newton's iteration. Furthermore, the corresponding consistency analyses of discrete schemes are demonstrated. Finally, the validity of the proposed schemes is demonstrated through several numerical experiments. Compared with the classical finite difference method, collocation schemes can yield the higher-order accurate solutions with fewer nodes.
A collaborative model for faculty development: Helping faculty develop inclusive teaching practices
Authors: Bifulco Christina , Drue Christopher
Published: February 2023

Inclusive pedagogy, an intentional approach to creating learning environments that meet the instructional needs of diverse student populations, is critically important and a moral imperative in contemporary higher education. Among the biggest challenges for creating faculty development programming to address the development and use of inclusive pedagogy are the lack of financial resources to support the effort and a lack of centralized institutional staff expertise and resources to inform and support such efforts. This case study gives a model for an institutional collaboration that incorporates experts from a variety of offices to deliver a series of inclusive teaching workshops and incentivizes faculty and instructors by awarding a certificate. We describe the administrative processes for establishing this collaboration and the process of assessing the program, and we review the results after one year of the program’s existence.
La consommation de la viande de brousse à l’épreuve de changements environnementaux
Authors: Igugu Olivier , Boutinot Laurence
Published: February 2023

La viande de brousse est la principale source d’aliments riches en protéines pour les populations qui vivent dans la forêt en Afrique centrale. Cependant, de grands changements affectent les écosystèmes forestiers de cette zone et les régions de Yangambi, d’Isangi et de Kisangani, dans la Province de la Tshopo, n’en sont pas épargnées. Dans cette région, la dégradation des écosystèmes forestiers, l’exploitation du bois et de la faune, les conflits, la croissance démographique urbaine et l’emprise agricole sont les principales causes de ces changements. Dans le but de comprendre ces changements environnementaux et leur impact sur le vécu des habitants de cette région, des enquêtes et des entretiens ont été menés dans trois zones d’étude, à savoir Yangambi, Isangi et Kisangani, entre mai et juillet 2019. Il ressort de ces investigations que les populations locales perçoivent les changements environnementaux autour de leur lieu de vie à travers le rétrécissement du couvert forestier, l’éloignement des zones giboyeuses et surtout les changements que cela engendre dans leurs habitudes alimentaires. En guise d’adaptation à ces changements, certains interdits alimentaires ne sont plus respectés par les consommateurs quand ces derniers ne se résolvent pas au régime végétarien. Ces transgressions sont encouragées par les prédications des hommes d'église qui, en République Démocratique du Congo (et comme les stars de la musique et les hommes politiques), mobilisent historiquement les opinions publiques. Ils portent ici des discours pragmatiques qui cherchent à pallier les inquiétudes devant les changements environnementaux quitte à désacraliser eux-mêmes les rites des interdits alimentaires jusque-là respectés.
La protestation AUCHAN DÉGAGE à Dakar
Authors: Ndiaye Abdourahmane
Published: February 2023

Dans cet article, nous proposons d’explorer les mobilisations alimentaires, à l’instar d’Auchan dégage, une campagne de protestation contre l’offensive de la grande distribution française au Sénégal, sous le prisme de l’approche du conflit, perspective de la sociologie des marchés. La grille d’étude du programme de recherche des mouvements sociaux est retenue comme analyseur des conflits autour des modes de consommation alimentaire. Ce travail s’appuie sur une enquête qualitative effectuée auprès des acteurs de la campagne de protestation. Elle est exploitée selon la méthode de l’analyse de contenu. La perspective retenue postule une consommation qui déborde du périmètre étroit que lui confère habituellement la théorie économique orthodoxe, son étude sous le seul angle de l’acte d’achat. Offrant ainsi la possibilité d’interroger à la fois les rapports de pouvoir, les résistances et les ripostes qui s’organisent au travers des marchés. Aux mobilisations contre la faim des décennies 1970 et 1980 en Afrique se sont substituées d’autres formes de mobilisations autour des enjeux de souveraineté alimentaire et de patriotisme économique, notamment celles organisées depuis 2018 contre la mainmise de la grande distribution française sur les marchés de consommation urbaine au Sénégal. Ce faisant, la mobilisation impulse à la fois un enjeu refondateur à la question du consommer local et une tentative de réappropriation du secteur par un capitalisme périphérique.
L’art de se nourrir en temps de crise aggravée et en contexte d’insécurité alimentaire structurelle
Authors: Raimond Christine , Fougou Hadiza Kiari , Caremel Jean-François , Garine Eric
Published: February 2023

Dans la région de Diffa au Niger, à une situation alimentaire structurellement déficitaire en raison d’une croissance démographique forte en zone aride, se surimpose une crise sécuritaire liée au groupe djihadiste Boko Haram, qui a entrainé un déplacement massif de population et une crise humanitaire majeure à l’échelle régionale. Au travers d’études successives depuis 2017, complétées par une enquête auprès de personnes hôtes, déplacées et réfugiées, nous analysons les recompositions à l’œuvre dans l’alimentation locale et la commensalité. Malgré l’éclatement des familles, leur redistribution dans le territoire et les ruptures brutales des mobilités qui assuraient les systèmes de subsistances, nous montrons que les habitants persistent à faire encore trois repas par jour, à rassembler la famille, à organiser les repas de fêtes et même à adopter des innovations alimentaires urbaines. Les changements dans l’alimentation ne sont pas tous liés à la crise sécuritaire, ils révèlent aussi l’adoption de pratiques et de produits nouveaux, « faute de mieux » ou par goût de la nouveauté, qui témoignent de dynamiques sur un temps plus long et d’échanges sur de longues distances.
Climate Change and Insect Pests
Authors: Azenzem Rachid , Najib Al Feddy Mohamed , Kassout Jalal
Published: February 2023

Climate change is a growing global issue and the most imminent concern threatening life forms. This applies in particular to the Mediterranean region where rates of most climate indicators are above global trends. Climate change could have implications for many facets of agricultural production systems. Although the olive tree (Olea europaea L.) is one of the most adapted species to the Mediterranean climate, its co-adaptation with pests may change with the considerable warming and drying trends in future climate projections. In fact, climate change will result in significant changes in diversity, distribution of insect pests, pest-plant interactions, natural enemy abundance, and the effectiveness of crop protection systems for pest control. Hence, a changed pattern in climatic factors has the potential to drastically affect the pest situation in olive groves and eventually lead to yield losses. This situation will create new challenges for olive growers who will have to protect their production and maximize their profit while adopting sustainable solutions.
Coleopteran Species in Arid Environments
Authors: Karmaoui Ahmed , Chavanon Guy , Moumane Adil
Published: February 2023

Draa oases are declared as a part of the biosphere reserve of Moroccan oases. These oases are agro-ecosystem dominated by the palm and fed by Draa Wadi, the longest in Morocco. Outside the oasis, the acacia trees and many pre-Saharan herbaceous species expand along the flooded areas and at the edges of temporary waterways. This desert vegetation creates a microclimate that favors the proliferation of a vast invertebrate diversity including Coleopteran species (beetles) that support the soil and flora-fauna ecosystem services. These insects play a very important role in the health of this environment. Indeed, they can perform the functions of ecosystems such as pollination, purification, biological control, and soil fertilization. In this chapter, the authors provide new information and update the list of the Coleopteran species in the Draa Valley. Thirty-one species and 15 families were observed through several entomological trips.
Local Peoples' Perceptions on Microfinance in Nepal
Authors: Sah Seema Kumari , Devkota Niranjan , Paudel Udaya Raj , Upretee Sahadeb , Mahato Surendra , Basyal Devid Kumar , Lawaju Purnima , Bohaju Sabina , Dhakal Krishna
Published: February 2023

Microfinance has been evolving as an indispensable tool of poverty eradication and rural improvement. At present, almost all the commercial banks have delved into the microfinance foray and offer various lucrative schemes designed for the rural poor, specifically to carry out their own small economic activities. This chapter attempts to study the perception of the people in the microfinance business of Janakpur, Nepal. This study is taken from explanatory research design and collected data using a structure questionnaire, and the sample taken is 283 users of microfinance. SEM was used to test the hypothesis. It is found that microfinance needs to focus more on training assessment, better compensation structure, and women-friendly policies for the workforce. This study reveals that though all have delved into microfinance, a lot of effort is still required to pave the way for microfinance in Janakpur, Nepal.
Marriages of (In)convenience and Politics of Traditional and Democratic Leadership in Botswana and South Africa
Authors: Tshishonga Ndwakhulu Stephen , Dipholo Kenneth
Published: February 2023

This chapter interrogates the interplay between traditional and democratic leadership and their co-existence in African modern societies. The chapter uses an idiomatic expression of ‘Marriages of (In)convenience' to demonstrate the discordant nature of traditional and democratic leadership in Africa with particular focus on South Africa and Botswana. A marriage of inconvenience depicts the blending of traditional and democratic leaders who welded indissolubly together, yet these leaders are incompatible in co-governance and co-existence in the democratized society. This chapter argues for the transformation and reformation of traditional governance system for rural community development. The chapter is anchored on a modernist perspective that advocates for incremental democratic reforms of traditional leadership in line with democratic principles in Botswana and South Africa. Botswana and South Africa are used as case studies to demonstrate the marriage of (in)convenience between traditional and democratic leadership.
Effectiveness of Visuals in Learning Social Media Awareness During the Pandemic
Authors: Rai Gayatri , Kumar Sandeep
Published: February 2023

The study aimed to identify whether social media visual advertisements can engage and influence individuals during the pandemic period. Further, it also aims to identify the important factor influencing an individual in social media visual advertisements in the awareness campaign. From the results obtained through analysis, it can be interpreted that most of them agree and strongly agree that visual advertisements in social media influence them to engage some of their time perceiving the content. Further from the mean score, it can be well interpreted that most agree and strongly agree that visual advertisements in social media influence their decision. Also, it was found that quotes, timing of advertisements, picture presentations, and celebrities are the most influencing factor in visual advertisements in the awareness campaign.
Behavioral Approaches to Leadership
Authors: Saltik Zehra
Published: February 2023

Leadership is one of the top subjects of study in the past, now, and in the future. Different approaches to leadership have been put forward up to the present day. As a concept, leadership has been studied with different aspects. One of these aspects is to examine leadership in terms of behaviors, which claims that it is certain types of behavior that make a leader effective or ineffective. Hence, it assumes that leaders are not born but made. According to this approach, leadership can be learned and modelled. This approach came out as a response to the inadequacies of traits approach of leadership and focused more on behaviors to define leadership. Ohio State studies, Michigan State studies, and Blake and Mouton studies are best representative of this approach.