bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Dukungan Wali Murid, Fasilitas Belajar, dan Kompetensi Guru terhadap Prestasi Belajar
Authors: Wahyuni Sri , Wardoyo Dewie Tri Wijayati , Widodo Bambang Sigit , Khamidi Amrozi , Karwanto Karwanto , Hariyati Nunuk
Published: July 2024

Dukungan wali murid, fasilitas belajar dan kompetensi guru mempengaruhi prestasi belajar siswa di SMP Negeri 1 Magetan. Untuk itu, para orang tua dan guru perlu selalu memantau perkembangan siswa agar prestasi mereka di sekolah terus berkembang dengan baik. Penelitian yang akan dilakukan oleh peneliti merupakan penelitian dengan jenis deskriptif yang menggunakan metode kuantitatif. Populasi dalam penelitian ini adalah siswa kelas 8 SMP Negeri 1 Magetan yang berjumlah 313 siswa. Jumlah populasi dalam penelitian ini sebanyak 313 siswa kelas 8. Metode pengambilan sampel di dalam penelitian ini dilakukan dengan cara purposive sampling yang merupakan bagian dari non-probability sampling. Bentuk pengambilan sampel ini didasarkan pada penyebaran kuesioner secara online melalui WhatsApp grup. Data dianalisis menggunakan SPSS. Hasil penelitian pada Variabel Dukungan Wali Murid menunjukkan nilai Sig 0,007 lebih kecil dari 0,05, berarti, terdapat pengaruh dukungan wali murid terhadap prestasi belajar siswa, sementara pada variable fasilitas belajar memiliki nilai Sig. 0190 lebih besar dari 0.05, yang berarti tidak ada pengarih fasilitas belajar terhadap prestasi belajar siswa. Sementara variabel Kompetensi Guru memiliki nilai Sig 0,002 lebih kecil dari 0.05 berarti terdapat pengaruh kompetensi guru terhadap prestasi belajar siswa di SMP Negeri 1 Magetan.
Mata Kuliah Kewirausahaan dan Pembekalan Praktek Kuliah Kerja Nyata (KKN) dalam Membentuk Jiwa Entrepreneurship (Studi Kasus: Mahasiswa UPI YPTK Padang)
Authors: Harmelia Harmelia , Putri Yonna Anggayu , Seplinda Mutia
Published: July 2024

Mata kuliah kewirausahaan merupakan modal awal yang diberikan kepada mahasiswa sebelum mereka terjun pada dunia kerja atau dunia usaha,  sedangkan praktek kuliah kerja nyata (KKN) sendiri merupakan pengaplikasiaan ilmu tersebut pada dunia kerja/ usaha. Membangun jiwa enterprenuership pada diri mahasiswa merupakan bagian yang diperlukan dalam menghadapi persaingan di dunia kerja. Penelitian ini bertujuan untuk mengetahui bagaimana mata kuliah kewirausahaan dan pembekalan praktek kuliah kerja nyata (KKN) dalam membentuk jiwa entrepreneurship bagi mahasiswa UPI YPTK Padang. Metode penelitian yang digunakan oleh penulis adalah metode deskriptif kuantitatif. Penelitian deskriptif kuantitatif adalah mendeskripsikan, meneliti, dan menjelaskan sesuatu yang dipelajari apa adanya, dan menarik kesimpulan dari fenomena yang dapat diamati dengan menggunakan angka-angka. Subjek dalam penelitian ini adalah mahasiswa UPI YPTK yang telah menyelesaikan mata kuliah kewirausahaan dan praktek kuliah kerja nyata (KKN). Variabel mata kuliah kewirausahaan sebesar 79.58 dengan kategori cukup baik. Hasil tabulasi data menunjukkan bahwa peranan pendidikan kewirausahaan dalam membentuk jiwa entrepreneurship berpengaruh kepada mahasiswa adalah sebesar 15,30%, variabel praktek kuliah kerja nyata sebesar 76,32 dengan kategori cukup baik. Hasil tabulasi data menunjukkan bahwa peranan praktek kuliah kerja nyata dalam membentuk jiwa entrepreneurship berpengaruh kepada mahasiswa adalah sebesar 17,40%. Mata kuliah kewiraushaan dan praktek kerja nyata memiliki korelasi yang cukup baik sekitar 0.77 bagi para mahasiswa untuk menumbuhkan jiwa entrepreneurnya. membangun jiwa entrepreneurship pada mahasiswa dapat dipengaruhi oleh beberapa faktor, seperti pendidikan kewirausahaan yang telah diperoleh oleh mahasiswa dan pengalaman saat mengikuti praktek kerja lapangan dan faktor yang mendukung lainnya.
Analisis Ketertarikan Peserta Didik dalam Proses Pembelajaran Berdasarkan Gaya Mengajar Dosen pada Politeknik Ilmu Pelayaran Makassar
Authors: Setyaningsih Agustina , Fauziah Gradina Nur
Published: July 2024

Proses pembelajaran yang efektif sangat bergantung pada ketertarikan peserta didik, yang dipengaruhi oleh gaya mengajar dosen. Di Politeknik Ilmu Pelayaran Makassar, pemahaman mengenai gaya mengajar yang paling diminati dapat membantu meningkatkan kualitas pendidikan dan hasil belajar peserta didik. Tujuan penelitian yaitu untuk mengetahui ketertarikan peserta didik dalam proses pembelajaran berdasarkan gaya mengajar dosen di Politeknik Ilmu Pelayaran Makassar. Penelitian ini merupakan penelitian deskriptif kuantitatif dengan menggambarkan variabel secara apa adanya didukung dengan data-data berupa angka yang dihasilkan dari keadaan sebenarnya. Penelitian dilaksanakan pada bulan April-September 2023 dengan populasi yaitu peserta didik/taruna jurusan Teknika semester II (Dua) Tahun Akademik 2022/2023 dengan jumlah populasi 241 orang. Kemudian berdasarkan rumus Taro Yamane maka jumlah sampel sebesar 150 orang. Adapun indikator variabel penelitian yaitu ketertarikan peserta didik terhadap gaya mengajar: (1) klasik, (2) teknologis, (3) personalisasi, (4) intruksional dan (5) tambahan. Teknik pengumpulan data berupa kuesioner dan dokumentasi. Teknik analisis data terdiri dari editing, koding, data Entry, cek data dan analisis. Hasil penelitian menunjukkan bahwa  dari kelima gaya mengajar yang menjadi fokus penelitian, tingkat ketertarikan tertinggi peserta didik yaitu pada gaya mengajar interaksional dan ditambah dengan karakteristik tambahan dari dosen pada saat melakukan proses pembelajaran. hal tersebut menunjukkan bahwa peserta didik tertarik ketika dosen dapat membangun komunikasi dua arah yang interaktif antara dirinya dengan peserta didik, serta dapat tampil menjadi sosok yang menyenangkan dengan tampil sebagai sosok yang mempunyai wawasan yang mendalam terhadap materi yang diajarkan dan dapat tampil menjadi sosok yang humoris namun tegas. Sedangkan ketertarikan peserta didik terhadap gaya mengajar klasikal berada pada kategori rendah dan untuk ketertarikan peserta didik terhadap gaya mengajar teknologis dan personalisasi berada pada kategori sedang.
Pengaruh Model Pembelajaran Problem Based Learning terhadap Kemampuan Menulis Teks Eksplanasi
Authors: Dailami Dailami , Sudarti Nila , Sartika Dewi
Published: July 2024

Tujuan penelitian ini adalah untuk mengetahui pengaruh model pembelajaran Problem Based Learning terhadap kemampuan menulis teks negosiasi pada siswa kelas XI IPA SMA Negeri 1 Air Joman Tahun Ajaran 2023/2024. Jenis penelitian ini menggunakan metode penelitian eksperimen kuantitatif dengan desain penelitian tes akhir. Populasi dalam penelitian ini adalah seluruh siswa kelas XI yang terdiri dari 6 kelas. Sampel penelitian ada 2 kelas (kelas XI IPS1 dan kelas XI IPS2) yang diambil secara random sampling class. Pada kelas IPS2 sebagai kelas eksperimen menggunakan model Problem Based Learning berjumlah 36 dan pada kelas IPS1 sebagai kelas kontrol dengan model pembelajaran konvensional berjumlah 35. Teknik pengumpulan data dengan tes dan dokumentasi. Berdasarkan hasil nilai kemampuan menulis teks eksplanasi kelas eksperimen memiliki skor rata-rata 82 dan hasil nilai kemampuan menulis teks eksplanasi kelas kontrol memiliki skor rata-rata 63,94. Nilai signifikan yang diperoleh lebih besar dari tabel yaitu 17,39 >2,38. Hal ini membuktikan bahwa terdapat pengaruh model pembelajaran Problem Based Learning terhadap kemampuan menulis teks eksplanasi siswa kelas XI IPS SMA Negeri 1 Air Joman Tahun Pelajaran 2023/2024.
Pengaruh Student Agency terhadap Keterlibatan Siswa dalam Pembelajaran Yang Dimediasi Motivasi Diri
Authors: Wirastuti Maria Emmaculata Ella , Meteray Bernarda , Listyarini Sri
Published: July 2024

Pandemi 19 membawa perubahan dalam dunia Pendidikan. Pembelajaran pada masa pandemi menuntut siswa lebih terlibat dalam pembelajaran, memperhatikan well being serta realistis pada apa yang hendak dicapai. Tujuan penelitian ini, menganalisis pengaruh student agency terhadap keterlibatan siswa dalam pembelajaran, dengan mediasi motivasi diri. Student agency mengacu pada kemampuan siswa mengambil inisiatif, bertanggung jawab atas pembelajaran mereka, dan memiliki kontrol atas proses belajar. Motivasi diri, mencakup motivasi intrinsik dan ekstrinsik yang mendorong siswa terlibat dan berpartisipasi aktif dalam proses pembelajaran.  Metode penelitian ini menggunakan pendekatan kuantitatif, melibatkan 38 responden siswa kelas 6 SD YPJ Kuala Kencana. Instrumen penelitian berbentuk kuesioner. Data dianalisis menggunakan metode statistik deskriptif dan analisis jalur  dengan aplikasi SPSS. Hasil Penelitian menunjukkan bahwa Student Agency  berpengaruh signifikan terhadap keterlibatan siswa, karena siswa merasa lebih termotivasi, dan lebih bertanggung jawab.
Penerapan Kesetaraan Gender dalam Proses Pembelajaran Program Keahlian Teknik Instalasi Tenaga Listrik di SMK
Authors: Lestari Fina Ayu , Cahyono Bagus Dwi , Suhendar Suhendar
Published: July 2024

Di era emansipasi perempuan saat ini, masyarakat masih mengelompokkan segala sesuatu berdasarkan gendernya. Hal ini berdampak pada program keahlian TITL di SMKN 2 Kota Serang yang memuat pembelajaran serta luaran bidang pekerjaan kasar. Penelitian ini membahas tentang penerapan kesetaraan gender dalam Program Keahlian TITL SMKN 2 Kota Serang. Tujuan dari penelitian ini untuk menganalisis dan mendeskripsikan penerapan kesetaraan gender dalam proses pembelajaran dan sejauh mana gender dapat mempengaruhi hasil belajar siswa program keahlian TITL di SMKN 2 Kota Serang. Penelitian ini mengadopsi pendekatan kualitatif dengan metode studi kasus. Dalam penelitian ini disimpulkan bahwa: 1) Proses pembelajaran di TITL SMKN 2 Kota Serang sudah menerapkan kesetaraan gender, dan 2) Gender berpengaruh dalam hasil belajar.
Tinjauan Literatur Falsafah Adat Minangkabau : Adat Basandi Syarak, Syarak Basandi Kitabullah
Authors: Fajria Rahmah , Fitrisia Azmi
Published: July 2024

Falsafah hidup “Adat Basandi Syarak, Syarak Basandi Kitabullah” menjadi filosofi yang dideklarasikan bagi orang minangkabau pada awal abad ke-19 yang dikenal dengan Piagam Bukit Marapalam. Penelitian ini bertujuan untuk mendeskripsikan falsafah hidup pada masyarakat minangkabau yaitu “Adat Basandi Syarak, Syarak Basandi Kitabullah”. Metode penelitian yang digunakan adalah studi literatur dengan menggunakan artikel, karya tulis yang berkaitan mengenai falsafah hidup masyarakat minangkabau. Teknik analisis yang digunakan adalah teknik analisis isi dari artikel – artikel dan karya tulis berupa buku yang telah dikumpulkan sebagai bahan penelitian. Berdasarkan penelitian, kesimpulan yang dapat diambil dari “Adat Basandi Syarak, Syarak Basandi Kitabullah” adalah adat dalam mengatur tatanan kehidupan sehari – hari harus sejalan dengan aturan dan ajaran agama islam. Setiap perilaku dan tindakaan dalam kehidupan sehari – hari harus mengimplementasikan ajaran agama islam ditengah – tengah masyarakat minangkabau.
THE EFFECT OF THE USE OF AGRICULTURAL TECHNOLOGY ON INCOME AND EMPLOYMENT OPPORTUNITIES FARM WORKERS (Case Study of the Community of Balongpanggang Village, Balongpanggang District, Gresik Regency)
Authors: Administrator Administrator , Nurfauzia Ananda Istiqomah , Syahrial Ramon
Published: July 2024

This study discusses the about influence of agricultural equipment technology on employmentopportunities and farm laborers' income in Balongpanggang, Balongpanggang sub-district,Gresik district. The purpose of this research is to find out how the technology of agriculturalequipment affects the employment opportunities and income of farm worker. The existence ofagricultural equipment technology has negative and positive impacts in Balongpanggangvillage, the conclusion from this study is that the negative effect means that the decreasingAgricultural Equipment Technology will affect the increase in Job Opportunities for farmlaborers and for this positive influence it means that the increasing Agricultural EquipmentTechnology will affect This increase in income is because the technology of agriculturalequipment is considered to save working time and costs in land management. But on the otherhand, the presence of agricultural equipment technology has also shifted the work of farmlaborers who initially used traditional tools. The type of research used is quantitative researchwith a population of farmhands in the village of Balongpanggang and using the saturationtheory formula, namely with 23 respondents and all of them will be sampled. The method usedto test this research is to test the validity, reliability test, t test , classic assumption test, pearsonbivariate correlation test and simple regression analysis. The analytical tool in this study usesSPSS version 20
Molecules in Cool Stars: The A2Π − X2Σ+ and the B2Σ+ − X2Σ+ Band Systems of CaCl
Authors: Lavy Léo , Bernath Peter F.
Published: July 2024

Cool red giant stars exhibit absorption bands of calcium monochloride (CaCl) in the optical region. In this work, the bands of CaCl corresponding to the A2Π − X2Σ+ transition with

v

′

≤

4 and v″ ≤ 4, and B2Σ+ − X2Σ+ transition with

v

′

≤

2 and v″ ≤ 2 are rotationally analyzed with PGOPHER, a multipurpose program for simulating and fitting molecular spectra. All bands were analyzed using high-resolution absorption spectra collected at the National Solar Observatory in 1985, calibrated with atomic lines from a high-resolution emission spectrum obtained in a separate hollow cathode experiment. The results are compared with previous laser-induced fluorescence measurements. Overall, the accuracy of spectroscopic constants for the A2Π and B2Σ+ states is improved. Scaled transition dipole moment calculations were used to obtain line strengths. Line lists are provided with Einstein A coefficients and oscillator strengths, which can be used to determine CaCl stellar abundances. Additionally, isotope splittings allowed us to estimate band origins for the 40Ca37Cl isotopologue based on band-head positions.
HSTPROMO Internal Proper-motion Kinematics of Dwarf Spheroidal Galaxies. I. Velocity Anisotropy and Dark Matter Cusp Slope of Draco
Authors: Vitral Eduardo , van der Marel Roeland P. , Sohn Sangmo Tony , Libralato Mattia , del Pino Andrés , Watkins Laura L. , Bellini Andrea , Walker Matthew G. , Besla Gurtina , Pawlowski Marcel S. , Mamon Gary A.
Published: July 2024

We analyze four epochs of Hubble Space Telescope imaging over 18 yr for the Draco dwarf spheroidal galaxy. We measure precise proper motions for hundreds of stars and combine these with existing line-of-sight (LOS) velocities. This provides the first radially resolved 3D velocity dispersion profiles for any dwarf galaxy. These constrain the intrinsic velocity anisotropy and resolve the mass–anisotropy degeneracy. We solve the Jeans equations in oblate axisymmetric geometry to infer the mass profile. We find the velocity dispersion to be radially anisotropic along the symmetry axis and tangentially anisotropic in the equatorial plane, with a globally averaged value

β
B

¯

=
−

0.20

−
0.53

+
0.28

, (where 1 –

β
B

≡
〈

v

tan
2

〉
/
〈

v

rad
2

〉

in 3D). The logarithmic dark matter (DM) density slope over the observed radial range, Γdark, is

−

0.83

−
0.37

+
0.32

, consistent with the inner cusp predicted in ΛCDM cosmology. As expected given Draco’s low mass and ancient star formation history, it does not appear to have been dissolved by baryonic processes. We rule out cores larger than 487, 717, and 942 pc at 1σ, 2σ, and 3σ confidence, respectively, thus imposing important constraints on the self-interacting DM cross section. Spherical models yield biased estimates for both the velocity anisotropy and the inferred slope. The circular velocity at our outermost data point (900 pc) is

24.19

−
2.97

+
6.31

km

s

−
1

. We infer a dynamical distance of

75.37

−
4.00

+
4.73

kpc and show that Draco has a modest LOS rotation, with

v

/

σ

=
0.22
±
0.09

. Our results provide a new stringent test of the so-called “cusp–core” problem that can be readily extended to other dwarfs.
Marine algal (seaweed) flora of Faial Island, Azores
Authors: Milla-Figueras David , Neto Ana Isabel , Tempera Fernando , Moreu Ignacio , Prestes Afonso C. L. , Resendes Roberto , Neto Raul , Tittley Ian , Afonso Pedro
Published: July 2024

A comprehensive checklist of the marine flora from Faial Island, mid-north Atlantic, is still unavailable, despite the numerous works that gathered data around its coasts for over 150 years. This study brings together and harmonises all macroalgae collections and taxonomical records from multiple projects and teams over the last thirty years.

The result is a list of taxonomic records and georeferenced species occurrence data that substantially increases our knowledge of the coastal Azorean marine biodiversity while providing key information for future ecological studies and to support local, marine management and conservation.

A total of 2283 specimens belonging to 118 taxa of macroalgae are registered here, comprising 61 Rhodophyta, 26 Chlorophyta, 30 Ochrophyta (Phaeophyceae) and one Cyanophyta (Cyanobacteria). From these, 26 taxa are identified only at the genus level and 92 to species level (47 Rhodophyta, 21 Chlorophyta and 24 Ochrophyta). The list comprises 75 native species, 12 records of uncertain origin and five introductions (Caulerpa prolifera(Forsskål) J.V.Lamouroux,Caulerpa webbianaMontagne,Hydroclathrus tilesii(Endlicher) Santiañez & M.J.Wynne,Asparagopsis armataHarvey andSymphyocladia marchantioides(Harvey) Falkenberg).Codium elisabethiaeO.C.Schmidt represents the only Macaronesian endemism known on the Island. Twenty-three species are newly recorded to the algal flora of the Island.
Chine. La promotion ambivalente de la négociation collective dans les plateformes de livraison de repas
Authors: Xu Xingrong , Mias Arnaud
Published: July 2024

L’article analyse la promotion ambivalente de la négociation collective dans le secteur des plateformes de livraison de repas par le gouvernement chinois. La transformation numérique a créé de nouvelles formes d’emploi, représentant une part significative de l’emploi informel. Bien que le gouvernement encourage celles-ci pour lutter contre la pauvreté, les travailleurs peinent à obtenir une protection juridique adéquate. Les autorités promeuvent la négociation collective pour combler les lacunes législatives, mais les efforts sont souvent formels et peu efficaces. Les syndicats, sous contrôle étatique, et les plateformes dominent les négociations, laissant les travailleurs dans une situation précaire.
Bulgarie. Face à la pénurie de main-d’œuvre qualifiée, quel apport du dialogue social ?
Authors: Kirov Vassil , Gazale Joyce
Published: July 2024

La Bulgarie a dû faire face au cours de ces dernières années à une pénurie de main-d’œuvre qualifiée, entravant son développement économique. Cet article a pour objectif d’examiner les stratégies et les initiatives mises en place par le gouvernement bulgare et les partenaires sociaux, en particulier dans le secteur de la construction mécanique, pour endiguer l’émigration de main-d’œuvre qualifiée et encourager le retour des expatriés en améliorant les conditions de travail, la formation et les rémunérations.
« Non ! Tu as ri ! » (Genèse 18, 15)
Authors: Lefebvre Philippe
Published: July 2024

Le rire d’Abraham et de Sara relatif à la naissance d’Isaac dans la Genèse touche aussi Ismaël ; il est à prendre au sérieux comme réaction à un événement qui a Dieu comme source, à l’impossible devenu possible. Ce rire repris à l’envi au cours de l’évangile de Luc exprime, dans une vivifiante confusion des places, la promesse de la béatitude .
Samedi saint – Quand le Père se tait
Authors: Kasper Walter , Tück Jan-Heiner , Armogathe Jean-Robert
Published: July 2024

La descente « aux enfers » du Samedi saint n’est pas anecdotique : elle est au contraire centrale pour comprendre l’étendue sans limites de la libération obtenue par la Passion et la mort de Jésus.
Le suicide assisté ou le déséquilibre de l’éthique
Authors: Putallaz François-Xavier
Published: July 2024

Au moment où un projet de loi met en péril le modèle français de la fin de vie, la Suisse, qui a déjà banalisé la pratique des suicides assistés, montre qu’aucune barrière n’a tenu : les chiffres explosent. Cette évolution montre que c’est la raison humaine qui est défaite. Celle-ci ne perçoit plus que, si on interrompt un traitement, c’est la maladie qui emporte le malade ; alors que dans l’assistance au suicide ou l’euthanasie, c’est une personne qui donne la mort. Cependant la médecine ne sera jamais légitimée à supprimer la souffrance par l’élimination du malade .
Proposals for building an informational system to guide regional innovation policy
Authors: Flamand Marina , Frigant Vincent , Velasquez Deivyd
Published: July 2024

Pour mener à bien une politique régionale d’innovation, les décideurs régionaux ont besoin d’un système informationnel performant leur permettant de caractériser finement leur territoire et d'identifier les opportunités de développement pertinentes. Dans cet article, nous proposons une grille méthodologique pour élaborer un tel système d’informations en insistant sur deux dimensions souvent négligées dans leur complémentarité : d’une part le type d’informations requis, et d’autre part les caractéristiques des données à collecter. Considérant que l’approche des Systèmes Régionaux d’Innovation constitue un référentiel théorique pertinent pour caractériser la première dimension, nous mobilisons les principes clés des démarches informationnelles d’aide à la décision pour identifier les caractéristiques souhaitables des données. La dernière section prend l’exemple des laboratoires de recherche afin de montrer le potentiel heuristique de la grille proposée.
Enhanced BBO technique used to solving EED problems in electrical power systems
Authors: Marouani Ismail
Published: July 2024

This paper proposes an improved biogeography-based optimization (BBO) algorithm to effectively solve the economic and environmental dispatch (EED) problem in power systems. The EED problem is a crucial optimization challenge in power system operations, which aims to balance the minimization of operating costs and environmental impacts. Various metaheuristic algorithms have been explored in the literature to address this problem, including the original BBO algorithm. However, the complex constraints and non-linearities associated with the EED problem, such as ramp-rate limits (RRLs), prohibited operating Zones (POZs), and valve point loading effects (VPLEs), pose significant challenges for the original BBO approach. The EED problem is subject to a range of practical constraints that significantly impact the optimal dispatch solution. Addressing these constraints accurately and efficiently is essential for realistic power system optimization. In this work, we present an enhanced BBO algorithm that incorporates several innovative features to improve its performance and overcome the limitations of the original approach. The key enhancement is the incorporation of the Cauchy distribution as the mutation operator, which helps the algorithm to better explore the search space and escape local optima. Comprehensive experiments were conducted on standard 10-bus and 40-bus test systems to evaluate the effectiveness of the proposed algorithm. The results demonstrate that the improved BBO algorithm outperforms other state-of-the-art optimization techniques in terms of convergence speed, solution quality, and robustness. Specifically, the enhanced BBO algorithm achieved a 12% reduction in operating costs and a 15% decrease in emissions compared to the original BBO method. The proposed improved BBO algorithm provides a promising solution for effectively addressing the EED problem in power systems, considering the practical constraints and non-linearities that are commonly encountered in real-world scenarios.
A regularized eigenmatrix method for unstructured sparse recovery
Authors: Leem Koung Hee , Liu Jun , Pelekanos George
Published: July 2024

The recently developed data-driven eigenmatrix method shows very promising reconstruction accuracy in sparse recovery for a wide range of kernel functions and random sample locations. However, its current implementation can lead to numerical instability if the threshold tolerance is not appropriately chosen. To incorporate regularization techniques, we have proposed to regularize the eigenmatrix method by replacing the computation of an ill-conditioned pseudo-inverse by the solution of an ill-conditioned least squares system, which can be efficiently treated by Tikhonov regularization. Extensive numerical examples confirmed the improved effectiveness of our proposed method, especially when the noise levels were relatively high.
Remote Access to Expensive SDRAM Test Equipment: Qimonda Opens the Shop-floor to Test Course Students
Authors: Ferreira Jose M. M. , Leão Ana C.
Published: July 2024

Remote labs are increasingly used in a variety of blended-learning scenarios, with the objective of complementing the work done in real labs. In such cases, the workbenches present in the real labs comprise a set of instruments that may be used over the internet. The lab work to be done by the students may be carried out from any location within or outside the campus, enabling them to carry out their assignments from home or from any other place, at a time of their choice. However, remote experimentation is not necessarily related to students accessing academic labs. Small and medium-size companies may be interested in specialised equipment available in university research labs (e.g. an electron microscope). Alternatively, student skills in various areas may be improved if they are able to work with equipment available in factories or other industry installations. This paper describes a collaboration initiative between the Qimonda SDRAM factory at Vila do Conde, in the vicinity of Porto, and the Faculty of Engineering of the University of Porto (FEUP), whereby an expensive test station used by Qimonda SDRAM factories is remotely accessible to test course students in higher-education institutions.
Grid Supported Virtual Laboratories with Col-laboration in Engineering Education
Authors: Schmid Christian
Published: July 2024

In this paper, Grid technologies are introduced to build e-learning environments for virtual laboratories. Service-oriented Grids open new fields of applications, the Learning Grids. The learning services concept and their deployment through Grid technologies are excellent means to integrate virtual laboratories into collaborative e-learning environments for engineering education. Example applications from a virtual laboratory demonstrate the advantages of a Grid over classical solutions.
State of the Art About Remote Laboratories Paradigms - Foundations of Ongoing Mutations
Authors: Gravier Christophe , Fayolle Jacques , Bayard Bernard , Ates Mikael , Lardon Jeremy
Published: July 2024

In this paper, we provide a literature review of modern remote laboratories. According to this review, we explain why remote laboratories are at a technological crossroad, whereas they were slugging for a decade. From various observations based on our review, we try to identify possible evolutions for the next generation of remote laboratories.
Genuine Lab Experiences for Students in Resource Constrained Environments: The RealLab with Integrated Intelligent Assessment
Authors: Chika Ifeyinwa Eucharia , Azzi Djamel , Stocker James , Haynes Barry P.
Published: July 2024

Laboratory activities are indispensable for developing engineering skills. Computer Aided Learning (CAL) tools can be used to enhance laboratory learning in various ways, the latest approach being the virtual laboratory technique that emulates traditional laboratory processes. This new approach makes it possible to give students complete and genuine laboratory experiences in situations constrained by limited resources in the provision of laboratory facilities and infrastructure and/or where there is need for laboratory education, for large classes, with only one laboratory stand. This may especially be the case in countries in transition. Most existing virtual laboratories are not available for purchase. Where they are, they may not be cost friendly for resource constrained environments. Also, most do not integrate any form of assessment structure. In this paper, we present a very cost friendly virtual laboratory solution for genuine laboratory experiences in resource constrained environments, with integrated intelligent assessment.
Remote Laboratories based on LXI
Authors: Garcia-Zubia Javier , Hernández-Jayo Unai , Angulo Ignacio , Orduña Pablo
Published: July 2024

Most of the times, remote labs developers spend many time building a software architecture to control equipments located in the lab. Sometimes during this long process we forget the objective of the WebLab: to be a learning tool. Using defined standards we can save time creating universal and powerful WebLabs. LXI is an standard to control devices via Ethernet that can be used to this purpose.
Mixed Reality Systems
Authors: Müller Dieter
Published: July 2024

Currently one of the most challenging aspects of human computer interaction design is the integration of physical and digital worlds in a single environment. This fusion involves the development of "Mixed Reality Systems
WEB 2.0 Pharmacy Robots
Authors: Garcia-Zubia Javier , Trueba Ivan , Lopez-de-Ipina Diego
Published: July 2024

This paper presents a new generation of pharmacy robots based on micro-servers and web 2.0 technologies. Micro-servers make accessibility and remote configuration of the robot easier, because it does it by native way. This new technology offers a faster, more robust and ecologic service than the classic solutions. A robotic prototype has been built, installed and checked successfully. This fact presents a new paradigm between classic architecture and this new one in the robots control area.
Meta-heuristic method to schedule vehicle routing with moving shipments at the cross-docking facility
Authors: Gnanapragasam S.R. , Daundasekera W.B.
Published: July 2024

Cross-Docking (CD) is a modern distribution strategy in a supply chain. The optimal scheduling of vehicle routing, known as the Vehicle Routing Problem (VRP), is one of the influential factors of the efficiency of a supply chain. In recent years, researchers and business consultants in different organizations have been interested in integrating the VRP with CD (VRPCD). Since VRPCD is a NP-hard problem, heuristic or meta-heuristic methods are always recommended to solve large-scale VRPCD. The Genetic Algorithm (GA) is a population based meta-heuristic algorithm and also, it is based on the principles of genetic and natural selections. The GA is capable of finding near optimal solutions to large-scale optimization problems which are extremely difficult to solve using traditional optimization algorithms. Therefore, in this study, a meta-heuristic approach based on the GA is proposed to solve the vehicle routing problem with moving shipments at the cross-docking facility (VRPCD&MS). The data are extracted from benchmark instances in the literature. The optimum solutions obtained to small-scale instances by the GA are compared with the exact solutions obtained by the Branch and Bound (BB) algorithm, which is a traditional algorithm to solve problems of this nature. The GA and BB algorithms are respectively coded in MATLAB and LINGO. The results reveal that the relative difference between the exact solution and the near–optimal solution is below 5%. Therefore, it can be concluded that the proposed GA is a better alternative method, considering its overall performance, to solve the VRPCD&MS models. Moreover, since the computational time is low, the proposed GA can be used to schedule the vehicles to the routes of VRPCD&MS at the last moment prior to the start of the time horizon.
The St Andrew's Scottish Church mission in Cape Town, 1838-1878
Authors: Cuthbertson G.C.
Published: July 2024

When slaves at the Cape were emancipated at the end of 1838, St Andrew's Presbyterian (Scottish) Church became the first church in Cape Town to open its membership to Blacks. This accounts for the fact that ex-slave converts joined St Andrew's and not other churches. The St Andrew's Mission became an important 'westernizing agency' under the Rev. George Morgan and the Rev. G. W. Stegmann. It performed not only a religious function, but also became an educational and welfare organisation for ex-slaves during the 1840s. A clash between Morgan and Stegmann resulted in a split in the Mission and the establishment of an independent Coloured congregation at St Stephen's Church. Later, in 1878, dissension between the White congregation and the mission congregation at St Andrew's Church caused the closure of the continuing St Andrew's Mission. The mission to the Blacks was taken over by the newly formed Cape Presbytery in 1893.
Association between Dietary Intake, Profibrotic Markers, and Blood Pressure in Patients with Chronic Kidney Disease
Authors: Mohtashamian Abbas , Soleimani Alireza , Gilasi Hamid Reza , Kheiripour Nejat , Moeini Taba Seyed Masoud , Sharifi Nasrin
Published: July 2024

Background:

Among profibrotic and oxidant factors, matrix metalloproteinases (MMPs) and advanced glycation end products (AGEs) have a major impact on the progression of chronic kidney disease (CKD). However, very limited studies evaluated the relationships between nutrient intake and the mentioned factors in patients with CKD. Therefore, the present study aimed to investigate the correlation between dietary intake and the levels of MMPs, AGEs, and blood pressure (BP) in these patients.

Materials and Methods:

This cross-sectional study was performed on 90 patients with CKD (stages 2–5). To evaluate the dietary intake of patients, three days of 24-hour food recall were completed through face-to-face and telephone interviews. Measurement of MMP-2 and MMP-9 concentration was done by enzyme-linked immunosorbent assay. The fluorimetric technique was used to measure the total serum AGEs.

Results:

The patients’ average dietary intake of sodium, potassium, phosphorus, energy, and protein was 725 mg/day, 1600 mg/day, 703 mg/day, 1825 kcal/day, and 64.83 g/day, respectively. After adjustment of confounding variables, a significant inverse relationship was observed between dietary intake of insoluble fiber and serum levels of MMP-2 (β = -0.218, P = 0.05). In addition, a significant positive relationship was found between molybdenum (Mo) intake and diastolic BP (β =0.229, P = 0.036).

Conclusion:

A higher intake of insoluble fiber might be associated with lower serum levels of MMP-2. Also, a higher Mo intake can be correlated to a higher DBP in patients with CKD. It is suggested to conduct future studies with longitudinal designs and among various populations to better elucidate the observed relationships.
Super-Speciality in India: A Boon or Bane?
Authors: Kumari Shivanee , Reddy BSC , Malik Yogendra , Math Suresh B.
Published: July 2024

In the past few decades, super-specialization has gained popularity in many medical disciplines. It provides professionals with a sturdy platform for advanced research and helps to deliver focused and extensive care in the fields of trauma and critical care, which can translate into good clinical outcomes for patients. Although this drift may bring about novel research opportunities, it may limit the number of doctors attending to the basic healthcare needs of the population. India is still struggling to provide primary healthcare services to its population. Super-specialization is a highly technology-driven industry, the costs of which our public health system cannot endure in the present settings. The current demand in India, where basic priorities are yet to be met, is to increase health awareness, provide basic healthcare facilities, and generate interest among medical professionals in providing general health services, especially in rural areas.
Outcomes of bent ab interno needle goniectomy with phacoemulsification in moderate to severe primary open angle glaucoma
Authors: Bukke Anand N , Midha Neha , Mahalingam Karthikeyan , Beri Nitika , Angmo Dewang , Sharma Namrata , Pandey Shivam , Dada Tanuj
Published: July 2024

Purpose:

To assess the safety and efficacy of bent ab interno needle goniectomy (BANG) in moderate to severe primary open angle glaucoma (POAG) eyes undergoing phacoemulsification (phaco).

Design:

Single-arm, prospective, interventional study.

Methods:

POAG patients with medically uncontrolled intraocular pressure (IOP), >15 mmHg for moderate and >12 mmHg for severe POAG, with visually significant cataract were recruited. All patients underwent BANG using a 26-gauge needle to excise 30° of the trabecular meshwork, along with phaco. Primary outcome was IOP. Secondary outcomes were success rate, percentage reduction in IOP/antiglaucoma medications (AGMs), and intraoperative complications. Success at 12 months was defined as: criterion A: IOP <15 mmHg for moderate glaucoma or <12 mmHg for severe glaucoma with or without AGMs OR criterion B: reduction in number of AGMs by >1.

Results:

Thirty-two eyes of 32 patients underwent BANG + phaco. Mean age of the participants was 62.7 ± 8.4 years and there were 25 males and seven females. At 12 months, a significant decrease was noted in both IOP (from 17.6 ± 3.6 to 12 ± 1.6 mmHg, 31.8%; P < 0.001) and AGMs (from 3.7 ± 0.9 to 2.8 ± 0.8, 24.3%; P < 0.001). Twenty percent or more reduction in IOP was achieved in 62.5% (20/32) of eyes. Overall success (meeting either of the criteria A or B) at 12 months was achieved in 87.5% eyes. Mild postoperative hyphema was noted in 10 (31.2%) eyes, and two eyes (6.2%) required additional filtration surgery at 7 months.

Conclusion:

A 30-degree BANG with phaco in patients of POAG appears to be a safe, effective and affordable MIGS for developing countries.
The effect of 2% pilocarpine on depth of field in different time intervals among presbyopic subjects
Authors: Tripathi Ashith , Sebastian Sebin C , Yadav Himanshu , Khan Iqra Jamal , Kamath Vandana
Published: July 2024

Purpose:

The aim of this study was to determine the effects of 2% pilocarpine ophthalmic solution on the depth of field and the pupil size of human eye in the presbyopic population.

Settings and Design:

Prospective experimental study.

Methods:

The prospective study included 120 presbyopic people aged between 40 and 55. All willing subjects underwent a comprehensive eye examination that included measuring the visual acuity for distance and near, retinoscopy, refraction, anterior and posterior segment examination, depth of field, and pupil size in room illumination. Following a preliminary examination, 2% pilocarpine ophthalmic solution was instilled in both eyes, and after various intervals of 15, 30, and 45 min, the depth of field and the pupil size were measured.

Results:

Before instillation of 2% pilocarpine solution, the mean pupil size was 0.34 mm with a standard deviation (SD) of ±0.37. After instillation, the mean pupil size changed to 2.20, 1.91, and 1.57 mm with SD of ±0.43, ±0.27, and ±0.34 mm, respectively, in 15, 30, and 45 min time intervals. Initial mean depth of field also changed from 1.76 D (SD ± 0.20) to 1.72, 1.65, and 1.59 D with SD of ±0.20, ±0.16, and ±0.22 D, respectively, in 15, 30, and 45 min time intervals.

Conclusion:

The study concludes that pupillary miotics create a pinhole effect after the instillation of 2% pilocarpine ophthalmic drop, extending the depth of field. The effect was highly clinically significant at 45 min with a P value <0.001.
Thickened photoreceptor outer segment layer in children with hyperopic anisometropic amblyopia
Authors: Zhang Wenli , Yang Fan , Chen Shirong , Shi Tingkun
Published: July 2024

Purpose.

To quantitatively investigate the reflectivity and structure of the outer retinal layers in children with hyperopic anisometropic amblyopia by using swept-source optical coherence tomography (SS-OCT).

Methods:

Seventy-eight patients with amblyopia and 64 age-matched children with normal vision were included in this study. All participants underwent SS-OCT and detailed ophthalmic examinations. Longitudinal reflectance profile measurements were measured using Image J. The reflectivity of outer retinal layers was measured at the three selected positions: subfovea, 1 mm nasal to the fovea, and 1 mm temporal to the fovea. The reflectivity ratios were calculated by outer retinal layers divided by the nuclear layer (ONL) for normalization. Photoreceptor outer segment layer thickness was also measured. The results were compared between the amblyopia and normal controls. The possible effects of age, sex, and axial length on results were adjusted by generalized estimating equations.

Results:

Photoreceptor outer segment layer thickness was significantly greater in amblyopic eyes than in normal control eyes at all three regions (18.41 ± 1.83 vs. 16.84 ± 1.39, P < 0.001 at the fovea; 14.78 ± 1.34 vs. 14.19 ± 1.40, P = 0.030 at 1 mm nasal to the foveal; 14.92 ± 1.48 vs. 14.41 ± 1.32, P = 0.049 at 1 mm temporal to the fovea). The reflectivity ratio of outer segment/ONL was higher only at 1 mm nasal to the fovea (2.94 ± 0.61 vs. 2.70 ± 0.42, P = 0.02). Subfoveal OS thickness was positively correlated with choroidal thickness (r = 0.248, P = 0.018) but was not correlated with spherical equivalent, age, axial length, or logMAR visual acuity.

Conclusion:

Quantitative measurement of SS-OCT images revealed greater photoreceptor outer segments in both eyes of children with amblyopia than in normal control eyes. A thicker OS thickness is somehow related to amblyopia, and this may be a new useful diagnostic parameter for amblyopia.
Effect of graded partial inferior rectus muscle tenotomy in treatment for superior oblique paralysis
Authors: Huang Lijuan , Yan Honggai , Xie Yan , Li Ningdong
Published: July 2024

Purpose:

To evaluate the surgical outcomes for patients with superior oblique paralysis (SOP) who underwent the inferior oblique weakening and the graded partial inferior rectus muscle tenotomy in the contralateral eye.

Methods:

Medical records were retrospectively reviewed for those SOP patients who had hyperdeviation of 4△ –20△ in the primary position and 8△ –25△ in the downgaze position. Patients were subdivided into three subgroups according to their vertical deviation angle in the downgaze position. They underwent an ipsilateral inferior oblique muscle recession and a graded partial tenotomy of the contralateral inferior rectus muscle. The vertical deviation angles, abnormal head position, and fundus torsion were compared statistically before and after operations. All patients were followed up at least 1 year.

Results:

Forty-seven patients were included in this study. The mean follow-up period was 17.2 months after surgery (ranging from 12 to 28 months). The vertical deviation angle was averaged preoperatively to 7.74△ ± 3.23△ in the primary position and 15.30△ ± 5.92△ in the downgaze position and reduced postoperatively to 0.85△ ± 1.15△ in the primary position and 1.53△± 1.49△ in the downgaze position (P < 0.001). All patients had an abnormal head position preoperatively and had improved significantly postoperatively. Fundus extorsion had been improved significantly postoperatively.

Conclusion:

The surgical procedure of IO weakening combined with contralateral graded partial inferior rectus muscle tenotomy is a successful intervention for the correction of small deviation in primary position of SOP.
Symmetric Idiopathic MicroPapular Facial Eruption or SIMPLE – Description of a New Entity Featuring Facial Vellus Hair Lichen Planopilaris in the Absence of Frontal Fibrosing Alopecia
Authors: Madan Vishal
Published: July 2024

Patients with frontal fibrosing alopecia (FFA) can present with facial micropapules which histologically represent vellus hair lichen planopilaris (LPP). Noninflammatory vellus hair LPP in the absence of FFA is rarely reported. The report describes noninflammatory vellus hair LPP presenting as symmetrical facial micropapules in the absence of clinical signs of FFA.
Comparison among Intense Pulsed Light, Alexandrite, and Long-Pulsed Neodymium-Doped Yttrium Aluminum Garnet 1064 Nm Lasers for Lower Leg Hair Removal: Case Series
Authors: Sari Indri Widya , Kurniawati Yuli , Diba Sarah
Published: July 2024

Lower leg hair removal is the method of reducing unwanted lower leg hair. Various technologies for lower leg hair removal include Intense Pulsed Light (IPL), alexandrite laser, and neodymium-doped yttrium aluminum garnet (Nd:YAG) laser. Conventional techniques are abandoned because effectiveness of the latest technological therapies has a longer period with minimal side effects. The comparison of successful treatment among IPL, alexandrite laser, and Nd:YAG laser for lower leg hair removal. Two patients, male and female, 28 years old, Fitzpatrick IV skin type. Three areas in the lower legs are marked for IPL 695 nm, fluence 15 J/cm2, pulse duration 60 ms; alexandrite 755 nm, fluence 3 J/cm2, pulse duration 2 ms, long-pulsed Nd:YAG 1064 nm, fluence 32 J/cm2, pulse duration 60 ms. IPL for 3 sessions at 2-week intervals. The alexandrite and Nd:YAG lasers for 3 sessions at 4-week intervals. Successful parameters with hair reduction and Visual Analog Scale (VAS) can be seen from photography and dermoscopy before and after therapy. In the first case, the most effective reduction terminal hair after IPL (95,1%), alexandrite (91,02%) and Nd:YAG (79,69%), respectively. In the second case, the most effective reduction of terminal hair after alexandrite (91,02%), Nd:YAG (79,69%), and IPL (20%), respectively. Hyperpigmentation and the highest VAS score (6–7) are found in the area treated with alexandrite lasers of two patients. Two patients have decreased Dermatology Life Quality Index scores. Nd:YAG laser may be better suitable for both sexes with minimal side effects. The limitation of this study is the smaller subject group and limited session.
Targetoid Hair Regrowth Pattern in Alopecia Areata: A Case Series
Authors: Ramesh Heera , Somashekhar Sachin , Shilpa Kanathur
Published: July 2024

Alopecia areata (AA) is an autoimmune disorder leading to nonscarring hair loss of the scalp and/or body. Atypical hair regrowth in AA is considered a rare phenomenon. Many paradoxical forms of hair regrowth have been described in AA. Targetoid hair regrowth pattern in AA was first described in 1988. Here, we report three cases wherein this pattern of hair regrowth was seen.
Tofacitinib in the Management of Alopecia Universalis
Authors: Agarwal Prashant
Published: July 2024

Alopecia universalis (AU) is a rare form of hair loss characterized by the complete absence of hair on the scalp and body. It is an advanced form of alopecia areata. There is currently no definitive treatment for this condition, and management options are limited. This case report describes the successful treatment of a 37-year-old female patient with AU using oral tofacitinib 5 mg BID, an oral Janus kinase inhibitor. The patient experienced clinically significant hair regrowth on the scalp and eyebrows after 6 months of treatment with tofacitinib, along with the concurrent use of oral mini-pulse betamethasone, topical minoxidil 5%, and clobetasol lotion. This case highlights the potential efficacy of tofacitinib as a promising therapeutic option for AU, without notable safety concerns. Moreover, it is also well tolerated in this patient.