bluuebunny/crossref_metadata_2025 huggingface dataset:
How Charge Regulation Affects pH-Responsive Ampholyte Uptake in Weak Polyelectrolyte Brushes
Authors: Radhakrishnan Keerthi , Beyer David , Holm Christian
Published: November 2024

Weak polyelectrolyte brushes are a promising platform for the selective capture and release of charged proteins from bulk solutions. Despite their potential for creating smart responsive surfaces, a detailed microscopic understanding of the uptake behavior in dependence of various parameters remains elusive. In this study, we employ coarse-grained, particle-based simulations to investigate how charge regulation under varying environmental conditions modulate the uptake and release of pH-responsive ampholytes, serving as a toy model for proteins, into weak polyelectrolyte brushes. For quenched brushes with constant ionization, the uptake of ampholytes remains strong across different isoelectric points. In contrast, for weak brushes, the ampholyte uptake becomes selectively sensitive to different isoelectric points and pKA-values and exhibits a non-monotonic behavior with changing pH. Enhanced proton partitioning into the brush lowers the local pH, significantly shifting the ionization states of both the brush (pKAapp > pKA) and ampholytes (pIapp > pI), such that the concurrent ionization of the brush and the ampholyte results in an optimum uptake strength for pKAapp < pH < pIapp. Adjusting the salt concentration broadens the uptake window and shifts the maximum uptake to higher pH values. Additionally, ampholytes with higher charge regulation capacitance near the isoelectric point demonstrate stronger adsorption, extending selective adsorption capabilities in ampholyte mixtures with similar isoelectric points.
Impact of Magnetic Ion Substitution on the Crystal Structure of Multiferroic Aurivillius Phases
Authors: Halpin Jennifer , Schmidt Michael , Whatmore Roger W. , Keeney Lynette
Published: November 2024

The five-layered (m = 5) Bi6Ti2.99Fe1.46Mn0.55O18 Aurivillius material is a rare example of a single-phase room temperature ferroelectric-ferrimagnetic multiferroic that shows promise for energy-efficient memory devices. Its ferrimagnetism is thought to derive from the natural partitioning of magnetic ions to the central perovskite layer, engendered by chemically-driven lattice strains, together with ferromagnetic coupling via superexchange mechanisms. Motivated by the expectation of an enhancement in magnetization with increased magnetic ion content, this study examines systematic B-site substitutions with the aim of increasing (from the current level of 40%) the proportion of magnetic ions within the structure. The solubility limits of magnetic cations in this structure and their influence on the superlattice layering are investigated. Studies of Aurivillius phase films on c-sapphire with composition Bi6TixFeyMnzO18 (B6TFMO; x = 2.3 to 3.2, y = 1.2 to 2.0, z = 0.3 to 0.9) demonstrated that above ca. 46% of B-site magnetic cations, the m = 5 structure first rearranges into a mixed-phase material based on m = 5 and six-layered (m = 6) structures and eventually evolves into an m = 6 phase with 54% magnetic cations at the B-site. It is postulated that increasing the number of perovskite layers by forming the m = 6 structure facilitates the accommodation of additional magnetic cations at a lower average manganese oxidation state (+3.3) compared with an equivalent m = 5 stoichiometry (+4.0). While the minor out-of-plane ferroelectric response decreases as expected with increasing structural reorganization towards the m = 6 phase, the predominant in-plane piezoresponse remains unaffected by magnetic cation substitution. This work shows that higher-layered Aurivillius homologues can be synthesized using aliovalent substitution, without requiring epitaxial growth or kinetically constrained methods.
Orbital Exchange Calculations: An Alternative View of the Chemical Bond
Authors: Merrithew Paul
Published: November 2024

Contemporary quantum chemistry methods assume that the two orbitals of the bonding pair are unambiguously identifiable. This work does not make that assumption. The purpose of this paper is to explore a model of the chemical bond which does not assume that the orbitals of the bonding pair can be unambiguously identified with either of the bonding atoms when their orbitals overlap to bond. To provide maximum flexibility in the definition of the bonding orbitals, the orbitals have been represented as spatial arrays and the calculations performed numerically. This model of the chemical bond assumes that the identifiability of the bonding orbitals is a function of 1-(overlap/(1+overlap)) where the overlap of the two bonding orbitals is calculated in the usual manner. The kinetic energy of the bonding electron pair and the energy required to meet the orthogonality requirements, mandated by the Pauli principle, are a function of overlap/(1+overlap). The model assumes that the bonding orbitals are straight-forward atomic orbitals or hybrids of these atomic orbitals. The results obtained by applying this simple approach to eleven di-atomics and seven common poly-atomics are quite good. The calculated bond lengths are generally within 0.005Å of the measured values and bond energies to within a few percent. Except for molecules with polarized symmetrical 1s or 2s sigma bonding orbitals, bond lengths are determined, independent of bond energy, at that point where overlap/(1+overlap) equals 0.5.
Morphology of Lithium Halides in Tetrahydrofuran from Molecular Dynamics with Machine Learning Potentials
Authors: de Giovanetti Marinella , Hopen Eliasson Sondre H. , Løland Bore Sigbjørn , Eisenstein Odile , Cascella Michele
Published: November 2024

The preferred structures of lithium halides (LiX, with X = Cl, Br, I) in organic solvents have been the subject of a wide scientific debate, and a large variety of forms has been isolated and characterized by X-ray diffraction. The identified molecular scaffolds for LiX are diverse, often built on (LiX)n rings with a prevalence of rhomboidal arrangements and an appropriate number of solvent or Lewis base molecules coordinating the lithium ions. Much less is known about the structures of LiX in solution, limiting the understanding of the synergistic role of LiX in reactions with various organometallic complexes, as prominently represented by the turbo Grignard reaction. Here, we trained a machine learning potential on ab initio data to explore the complex conformational landscape for systems comprising 4 LiX moieties in tetrahydrofuran (THF). For all the considered halogens a large number of scaffolds were found at thermally accessible free energy values, indicating that LiX in solution are a diverse ensemble constituted by (LiX)n moieties of various size, completed by the appropriate number of coordinating THF. LiCl shows preference for compact, pseudo-cubane [(LiCl)(THF)]4 structures, coexisting with open rings. At concen- trations close to the solubility limit, LiCl forms hexagonal structures, in analogy with literature observations on pre-nucleating NaCl. LiBr tends to favor less compact, more solvated aggregates. LiI significantly differs from the two other cases, producing highly solvated, monomeric, dimeric or linear structures. This study provides a comprehensive view of LiX in organic solvent, revealing dynamical polymorphism that is not easily experimentally observable.
Accelerated Relaxation Kinetics of Anisotropic Colloidal Nanoparticles in Acceleration Fields beyond 7251 Times Gravity: Liquid Crystalline Self-Assembly with Higher Rates and Structural Orderliness
Authors: Wang Pei-Xi , Xu Ling-Yan , Zhao Hongbo
Published: November 2024

Gravity of the Earth (g) drives macroscopic differentiation of multiple phases with different volumetric mass densities in many chemical and physical processes. Herein, liquid crystalline phase separation of colloidal dispersions of rod-shaped cellulose nanoparticles in centrifugal acceleration fields up to 71061 meters per second squared (about 7251 g) was studied. Through non-ionic in-situ free radical polymerization initiated by the time-controllable redox reactions between tert-butyl hydroperoxide (oxidants) and thiourea (reductants) at room temperature (about 298 kelvins), ordered soft microstructures formed by entropy-driven self-assembly were immobilized within crosslinked polyacrylamide matrixes at various evolution stages (e.g., after 10, 30, or 60 minutes) in centrifuge tubes. According to cross-sectional optical and scanning electron microscopy, strong acceleration fields accelerated the movement velocity of discrete liquid crystalline tactoidal microphases, the coalescence of tactoids into continuous chiral nematic structures, as well as the translational and rotational relaxation rates of mesogenic nanorods at kinetically arrested states in high-viscosity concentrated colloidal liquid crystals, leading to the elimination of topological defects and improvements in structural orderliness.
Accurate Free Energy Calculation via Multiscale Simulations Driven by Hybrid Machine Learning and Molecular Mechanics Potentials
Authors: Wang Xujian , Wang Junmei , Wu Xiongwu , Brooks Bernard
Published: November 2024

Our study focused on the implementation and testing of machine learning interatomic potentials (MLIPs) into the AMBER software suite. This implementation enables us to perform a novel type of molecular dynamics simulation utilizing the hybrid machine learning/molecular mechanics (ML/MM) potentials. To underpin the capabilities of ML/MM simulations, we first validated our implementation at a fundamental physical level by confirming energy and momentum conservation laws. The successful validation indicates that our implementation is able to produce adequate and physically interpretable samplings. Building upon this, for the first time to the best of our knowledge, we proposed an ML/MM-compatible thermodynamic integration (TI) protocol to tackle real-world challenges, such as solvation free energy calculation. Our results demonstrate that this computational protocol can predict hydration free energies with an accuracy of less than 1.00 kcal/mol compared to experimental data, paving the way for the use of ML/MM in multiscale simulations to addressing future drug design problems. Moreover, by applying ML/MM in molecular dynamics simulations of protein-ligand complexes, we demonstrated that the adequate samplings enable us to accurately reproduce experimental binding free energies. Thus, our implementation can offer new insights into biomolecular systems using the ML/MM "microscope". Last, we demonstrated that our implementation can achieve nanosecond timescale simulations daily after significant effort being put to improve the code performance. In a conclusion, we have successfully implemented ML/MM potential to AMBER software package after overcoming limitations in current multi-scale simulations including low computational efficiency. We have advanced TI theory allowing us to accurately predict free energies with ML/MM potentials.
First record of a rare Axiid Shrimp Eutrichocheles modestus (Herbst, 1796) (Malacostraca: Decapoda: Axiidae) from Northwestern Bay of Bengal
Authors: Balakrishnan S. , Prakash S. , Chandra Tudu Prasad
Published: November 2024

A rare axiid shrimp Eutrichocheles modestus (Herbst, 1796) belong to the family Axiidae have been discovered from the Digha Coast, Northwestern Bay of Bengal, India. The presence of E. modestus in Northwestern Bay of Bengal constitutes extension of the known geographical range of the species in the Indo-Pacific. In addition, the molecular information of E. modestus, using the mitochondrial Cytochrome Oxidase subunit I (COI) gene was provided with the K2P genetic divergence matrix of the closely related genera in the family Axiidae. Thus, it is believed that further exploration of this rare axiid shrimp E. modestus in the Indian waters will fulfill the gaps on population as well as other biological information.
Argonauta hians Lightfoot, 1786 (Cephalopoda: Argonautidae): A new record to the northern east coast of India
Authors: Ranjan Mohanty Swarup , Chandra Tudu Prasad , Mohapatra Anil
Published: November 2024

A juvenile Winged Argonaut, Argonauta hians Lightfoot, 1786 was collected from the Paradip fish landing centre, Odisha. The presence of a brittle brownish white shell indicates that the collected Argonauta Linnaeus, 1758 is a female specimen. This study reports the Argonauta hians for the first time along the northern part of the east coast of India with the first report of the genus Argonauta along Odisha coast.
A Study on Chelonian Fauna of River Tungabhadra (Hampi vicinity), Karnataka
Authors: Chandra Mohan K. , Kottur Samad , Murthy Channakeshava
Published: November 2024

In order to increase the data on area wise biota, several surveys are being conducted in India, which is replete with rich flora and fauna. Hence, from 2013 we studied the chelonian fauna of Hampi, wherein the river Tungabhadra forms the abode for four turtle species viz., Nilssonia leithii (Gray), Chitra indica (Gray), Lissemys punctata (Lacepede), and Melanochelys trijuga (Schweigger), and the enveloping scrub jungle harbors a lone tortoise species, viz., Geochelone elegans (Schoepff). Certain environmental factors, threats to chelonians and conservation measures are discussed.
New distributional records of Megachile Latreille, 1802 (Apoidea: Megachilidae) from Indian States
Authors: Sardar Sayan , Warrit Natapot , Rameshkumar A. , Kazmi S. I.
Published: November 2024

Based on the recent survey materials and backlog collections deposited in the Hymenoptera section, Zoological Survey of India, Kolkata, seven Megachile species, four belonging to subgenus Eutricharaea and one species each of Aethomegachile, Callomegachile, Creightonella and Pseudomegachile, are reported for the first time from different states of India. Floral association and distributional data of studied species are also provided.
Obituary
Authors: Board Editorial
Published: November 2024

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Culex (Culex) gaugleri, a new species (Diptera: Culicidae) from India
Authors: Suman Devi Shankar , De Souvik , Sharma Gaurav , Chandra Kailash , Banerjee Dhriti
Published: November 2024

The present study describes Culex (Culex) gaugleri sp. nov. (Diptera: Culicidae) from Kodaikanal, Tamil Nadu, India based on morphological characters and the DNA sequences, after comparing with other closely related species. The presence of banded and spotted wing classified Culex gaugleri sp. nov. in the Mimeticus subgroup of the genus, Culex Linnaeus. The diagnostic characters of C. gaugleri sp. nov. are include the furcation of vein M on the wing without a pale spot and the anterior surface of all tibia without the longitudinal pale stripes. Further, phyletic relationship based on the mitochondrial cytochrome oxidase I (COI) gene indicates that C. gaugleri sp. nov. is closer to Culex jacksoni Edwards, 1934 compared to other species of the Mimeticus subgroup, i.e., Culex mimuloides Barraud, 1924, Culex mimeticus NoÃ¨, 1899 and Culex tsengi Lien, 1968. Similarly, mitochondrial 16s rRNA phylogeny includes both Cx. mimeticus and Cx. gaugleri in the same clade and separates from other mosquito species. These evidences suggest that Cx. gaugleri sp. nov. is a distinct species. Morphometric data generated on various attributes such as band length in wings are also significant in differentiating from other closely related species. Further studies on other life stages including eggs, larvae and pupae and vector bionomics are suggested.
New records of Thyrididae (Lepidoptera) from Great Nicobar Island, India
Authors: Singh Navneet , Ahmad Jalil , Shah Suresh K. , Chakraborty Srijata
Published: November 2024

We report a Sundaland inhabitant, Rhodoneura pudicula GuenÃ©e, 1858 (Lepidoptera: Thyrididae) from Great Nicobar Island, Andaman & Nicobar Islands, the first-time record from India. Description, diagnosis, images of habitus and male genitalia are provided. Additionally, we report the extension of the distributional range of two thyridids: Mellea taeniata (Warren, 1908) and Aglaopus decussata (Moore, 1883), up to the Great Nicobar Island.
Role of Training and Development Programs in Enhancing the Employees Job Satisfaction and Loyalty
Authors: Almabrouk M Elagaili Tareq , Azam S. M. Ferdous , Tham Jacquline , Khatibi Ali
Published: November 2024

Purpose: The aim of this literature review is to examine the relationship between training and development programs and employee loyalty and job satisfaction. By evaluating how these programs improve abilities and promote development, the research aims to emphasize how crucial they are for developing potential and assisting
Design/Methodology/ A narrative analysis of relevant literature was conducted, utilizing Boolean operators such as "OR" and "AND" to refine the search. Specifically, the search strategy employed the query ((training) OR (development)) AND (job satisfaction)) OR (employee loyalty), focusing on articles published in English between 2018 and 2024. PubMed served as the primary database for sourcing pertinent studies.
Findings: Effective training and development initiatives greatly increase employee loyalty and work satisfaction, according to the report. These programs improve productivity and performance on an individual basis while also enhancing company culture and overall efficacy.
Implications/Originality/Value: The results highlight how important it is for businesses to undertake training and development strategically. Long-term success depends on these programs' ability to increase operational effectiveness and cultivate a dedicated staff. Companies must give priority to tailored training programs that meet employee demands in order to adjust to the changing business environment and guarantee long-term growth, productivity, and happiness.
Development of Problem Based e-Module to Train Higher Order Thinking Skills on Temperature and Heat Material
Authors: Herdila Preti , Herlina Kartini , Anggreini Anggreini
Published: November 2024

The development of science and technology has become very sophisticated, where science and technology has had a significant impact on various areas of life, especially education. In this modern era, teachers must be able to take advantage of developments in technology and information in learning, for example using it as a learning medium to convey learning material to students. In fact, in schools the use of learning media to attract students' attention has not been implemented effectively and efficiently. So this research aims to develop a valid, practical and effective problem-based e-Module on temperature and heat material to train students higher order thinking skills. This research uses the Design and Development Research type of research which consists of four research stages, namely analysis, design, development, and evaluation using assessments of validity tests, practicality tests consisting of readability tests, student response tests, and perception tests. teachers, the effectiveness test consists of a normality test, N-Gain, and Paired Sample T-Test. In the validity test results, an average score of 3.50 was obtained in the very valid category. The results of the practicality test in the readability test obtained an average score of 82.64, which was categorized as very readable, in the student response test, an average score of 82.7 was obtained, which was categorized as very good, and in the teacher perception test, an average score of 83,3 was obtained which is categorized as very good. Meanwhile, for the effectiveness test based on the results of the students' N-Gain pretest-posttest, an average score of 0.45 was obtained in the medium category.
Integration of Ethnoscience Approach in Physics Learning Based on Laboratory Practice: A Systematic Literature Review
Authors: Ariani Tri , Hariyadi Bambang
Published: November 2024

The development of physics learning methods that integrate ethnoscience approaches and laboratory practices has become a major focus in the application of educational innovation in this modern era. This study aims to determine the development map of the number of publications examining ethnoscience-based learning; knowing which scientific articles have the highest number of citations, and knowing the development map of scientific publications based on keywords and authors. Data collection was carried out based on the Google scholar database with the keywords ethnoscience, physics learning, laboratory, practice. Data collection was carried out using Harzing's Publish or Perish (PoP) software as metadata. Data analysis was carried out using Vosviewer software as a bibliometric analysis medium. Based on the results of the article search using Harzing's Publish or Perish, 410 publications published from 2016 to 2024 were obtained for further analysis. The results showed that keyword co-occurrence analysis using VOSViewer resulted in 31 terms grouped into 4 clusters. Network and density visualization shows several keywords that often appear, namely science, education and practice. In addition, the overlay visualization illustrates the latest terms that appear in 2022 are project, critical thinking skill, physics learning, medium, physics education, and science learning. Based on the results of overlay data mapping, it can be seen that research on the topic of ethnoscience-based physics learning is still relatively new, so it is very necessary to conduct research on this topic. Meanwhile, the publication that has the highest number of citations is (W. Sumarni, S. Kadarwati) which was cited 246 times.
Improving Learning Outcomes Using Case Based Learning (CBL) Assisted by Interactive Videos on Optical Materials
Authors: Windrawan I Gede , Muhyi Abdul , Astra I Made
Published: November 2024

This study examines the effectiveness of applying the Case Based Learning (CBL)Model assisted by interactive videos in improving students' cognitive learning outcomes onoptical materials. The method used is Classroom Action Research with the subject of grade XIMIPA 5 students at SMA Negeri 6 Tangerang Regency for the 2023/2024 school year. Thisresearch was carried out in three cycles, including planning, implementation, observation, andreflection. The results showed that implementing interactive video-assisted CBL significantlyimproved students' cognitive learning outcomes. The average cognitive score of studentsincreased from 55.6 in the first cycle, to 70.4 in the second cycle, and reached 75.2 in the thirdcycle. In addition, the success rate of classical learning also increased from 28.7% in the firstcycle to 79.7% in the third cycle. This improvement shows that interactive video-assisted CBLis effective in actively engaging students in learning, improving conceptual comprehension, andmotivating students to learn physics. This study suggests the application of interactive video-assisted CBL as an alternative learning method that can improve the quality of physics educationin schools.
PENGEMBANGAN MEDIA PEMBELAJARAN CELPINSIPMA (CELEMEK PINTAR SISTEM PENCERNAAN MANUSIA) UNTUK SISWA KELAS V SDN 2 PENGKOLREJO
Authors: Nurpiana Lupi , Saputra Henry Januar , Handayani Diana Endah
Published: November 2024

Tujuan penelitian ini adalah untuk mengetahui pengembangan media CELPINSIPMA (Celemek Pintar Sistem Pencernaan Manusia) yang valid untuk siswa kelas V di SDN 2 Pengkolrejo dan untuk mengetahui kepraktisan media pembelajaran CELPINSIPMA (Celemek Pintar Sistem Pencernaan Manusia) untuk siswa kelas V di SDN 2 Pengkolrejo. Penelitian ini merupakan penelitian Research and Development dengan menggunakan model pengembangan Borg and Gall. Metode pengumpulan data yang digunakan adalah wawancara, observasi, dokumentasi dan tes. Teknik pengumpulan data menggunakan instrumen penilaian dari ahli validasi media pembelajaran, ahli validasi materi pembelajaran, dan angket respon siswa. Penelitian ini dilakukan pada siswa kelas V SDN 2 Pengkolrejo. Hasil penelitian diperoleh dari validasi media dan materi, hasil dari ketiga ahli media menunjukkan rata-rata persentase skor validasi ahli media sebesar 86% dengan kategori “Sangat Layak”, dan nilai validasi dari ahli materi diperoleh sebesar persentase 92% pada kategori “Sangat Layak”. Hasil analisis angket respon siswa kelas V diperoleh persentase sebesar 94,75% dengan kategori “Sangat Praktis”. Dapat disimpulkan bahwa media CELPINSIPMA (Celemek Pintar Sistem Pencernaan Manusia) yang dikembangkan termasuk dalam kategori “Sangat Layak Digunakan” untuk digunakan pada kelas V.
ANALISIS KEMAMPUAN MEMBACA CEPAT DENGAN MEMBACA PEMAHAMAN SISWA KELAS IV SDN 02 REJOSARI MENGGUNAKAN MODEL PEMBELAJARAN PBL
Authors: Septiani Irhamah , Mudzanatun Mudzanatun , Mushafanah Qoriati
Published: November 2024

Bahasa merupakan alat yang dapat menyatukan dalam ilmu dan pendidikan. Kemampuan mempelajari bahasa memerlukan kemampuan dalam membaca. kecepatan membaca seseorang ada perbedaanya, yaitu intensitas waktu dan pemahaman informasi yang diperoleh. Tujuan dari penelitian ini yaitu untuk Menganalisis kemampuan membaca cepat dan membaca pemahaman pada siswa kelas 4 SD Negeri 02 Rejosari dengan menggunakan metode PBL dan untuk Mengetahui faktor- faktor yang memengaruhi kemampuan membaca cepat dengan membaca pemahaman di kelas 4 SD Negeri 02 Rejosari. Jenis penelitian ini adalah penelitian kualitatif. Setting penelitian dilaksanakan di SDN 02 Rejosari kecamatan Semarang Timur Kota Semarang dengan teknik pengumpulan data berupa triangulasi menggunakan tiga metode, yaitu observasi, wawancara, dan dokumentasi. Hasil dari penelitian ini menunjukan bahwa siswa kelas 4 SDN 02 Rejosari kota Semarang kemampuan membaca cepat dan membaca pemahamannya masih dikategorikan dalam kategori rendah, dari 23 siswa di dalam kelas kurang terfokuskan dikarenakan kurangnya pemahaman kata perkata, suasana kelas yang ramai dan sulit kondusif menjadikan siswa kurang konsentrasi di dalam kelas, ada 15 siswa yang kemampuan membaca cepat dan pemahamannya masih dibawah rata-rata selebihnya ada 8siswa yang dapat dikategorikan kemampuan membaca cepat dan membaca pemahamannya dalam kategori cukup. Kurangnya dukungan dari orang-orang terdekat yang merupakan faktor kurangnya konsentrasi atau fokus dalam kegiatan membaca. Adapun hambatan individual siswa yang memengaruhi kemampuan membaca cepat dan membaca pemahaman siswa yaitu kebiasan belajar di lingkungan tempat tinggal siswa, kondisi fisik mental yang kurang mendukung dan kurangnya latar belakang pengetahuan siswa.
PENGARUH MODEL PEMBELAJARAN SAVI (SOMATIC, AUDITORY, VISUALIZATION, INTELLECTUAL) TERHADAP HASIL BELAJAR IPAS KELAS IV SDN PUCAKWANGI 01
Authors: Lyansari Ardhea Putri , Purnamasari Veryliana , Nuvitalia Duwi
Published: November 2024

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model pembelajaran SAVI (Somatic, Auditory, Visualization, Intellectual) terhadap hasil belajar IPAS siswa kelas IV di SDN Pucakwangi 01, Pati. Jenis penelitian ini adalah penelitian kuantitatif dengan bentuk pre-experimental design dengan jenis one group pretest-posttest design. Jumlah sampel pada penelitian ini yaitu sebanyak 28 siswa . Pengumpulan data dilakukan melalui teknik observasi, wawancara, dokumentasi, dan pengujian hasil pretest dan posttest untuk menilai peningkatan hasil belajar peserta didik. Dari hasil uji t pada nilai posttest diperoleh t_hitung sebesar 15,041 dan t_tabel sebesar 1,703 dengan taraf signifikasi α = 5%, dengan begitu dapat dilihat bahwa t_hitung > t_tabel yang artinya H_o ditolak dan H_a diterima, sehingga dapat ditarik kesimpulan bahwa model pembelajaran SAVI berpengaruh terhadap hasil belajar IPAS kelas IV SD N Pucakwangi 01. Hasil penelitian ini menandakan adanya dampak positif yang signifikan dari model pembelajaran SAVI terhadap peningkatan hasil belajar IPAS, terlihat dari kenaikan skor rata-rata pretest ke posttest yaitu dari 45,71 ke 77,67. Kegiatan pembelajaran yang melibatkan aspek gerak fisik, dialog verbal, visualisasi, dan analisis intelektual melalui model SAVI menunjukkan efektivitasnya dalam memperkaya pemahaman siswa mengenai konsep IPAS. Berdasarkan hasil tersebut, peneliti menyarankan untuk mengimplementasikan model pembelajaran SAVI sebagai model pembelajaran yang inovatif di lingkungan pendidikan dasar, terutama dalam materi pembelajaran IPAS.
IMPLEMENTASI KEBIJAKAN ANTI BULLYING DI SEKOLAH (STUDY KASUS SD N 2 SAMBONGSARI KECAMATAN WELERI KABUPATEN KENDAL)
Authors: Maharani Intan , Wakhyudin Husni , Wardana M. Yusuf Setya
Published: November 2024

Penelitian ini bertujuan untuk mengetahui implementasi kebijakan anti Bullying di sekolah SD N 2 Sambongsari, factor-faktor, dampak serta penanganan perilaku Bullying di sekolah SD N 2 Sambongsari. Penelitian ini merupakan penelitian kualitatif dengan prosedur pengumpulan datanya meliputi observasi, angket, wawancara, dan dokumentasi. Hasil penelitian ini ialah Implementasi kebijakan anti bullying di SD N 2 Sambongsari, siswa kelas V dengan presentase keseluruhan siswa 76,55% yang mengimplementasi kebijakan anti bullying dengan baik. Sedangkan siswa kelas III dengan presentase keseluruhan siswa 76,55% yang mengimplementasi kebijakan anti bullying dengan baik. faktor terjadinya perilaku bullying di SD N 2 Sambongsari, siswa kelas V dengan presentase keseluruhan siswa 81,35% yang mengetahui faktor-faktor terjadinya perilaku bullying dengan baik. Sedangkan siswa kelas III dengan presentase keseluruhan siswa 80,91% yang mengetahui faktor-faktor terjadinya perilaku bullying dengan baik. Karakteristik perilaku bullying di SD N 2 Sambongsari, siswa kelas V dengan presentase keseluruhan siswa 71,98% yang mengetahui karakteristik perilaku bullying dengan baik. Sedangkan siswa kelas III dengan presentase keseluruhan siswa 72,76% yang mengetahui karakteristik perilaku bullying dengan baik. Dampak perilaku bullying di SD N 2 Sambongsari, siswa kelas V dengan presentase keseluruhan siswa 79,09% yang mengetahui dampak perilaku bullying dengan baik. Sedangkan siswa kelas III dengan presentase keseluruhan siswa 81,02% yang mengetahui dampak perilaku bullying dengan baik.
Integrating downhole seismic testing into dynamic probing light (DPL): first results
Authors: Almeida Caio Henrique de Castro , Giacheti Heraldo Luiz , Rocha Breno Padovezi , Esquivel Edmundo Rogério
Published: November 2024

Dynamic probing light (DPL) is available among a wide range of dynamic penetrometers. This equipment can be used in locations where conventional sounding equipment may have limited access. Here, the shear wave velocity (Vs) determination by the downhole seismic technique is incorporated to the DPL to develop a hybrid test, the seismic DPL test, for the preliminary characterization of tropical soils. The corresponding equipment, test procedure and data interpretation of the seismic DPL (S-DPL) test are presented and discussed. S-DPL test campaigns were carried out at two experimental research sites where crosshole seismic tests were conducted to provide reference Vs profiles. The Vs profiles determined with the S-DPL test are in accordance with those determined with the crosshole test for both sites. The proposed hybrid test (S-DPL) has the potential to serve applications in preliminary site characterization, particularly at sites including unsaturated tropical soil profiles.
REIMAGINING RURAL DEVELOPMENT IN POST PANDEMIC INDIA: ROLE OF STATE AND CIVIL SOCIETY IN THE BACKDROP OF MIGRATION
Authors: Kumari Meena , Chitalkar Sonali , Tiwari Vimlok
Published: November 2024

State plays a vital role in the development and progress of its citizens all around the world. Within the state people migrate from one state to another, from one region to another in search of better living conditions and livelihood. The aim of the present paper is to examine the degraded life of these peripatetic workers, specifically poor and backward among them in post pandemic India. The main question which prompted this paper is what is the relationship between the rural development and the condition of poor migrant workers in India? There are other equally relevant questions this article tries to underline such as what is the major cause of migrant hardships which triggers migration from the rural to urban areas? How is the migrant workers access to the social benefits in the ‘State of Absorption’? What is the city's approach toward the rural migrants from other parts of India? What is the responsibility of the state toward its internally migrant population in a period of crisis and emergency? Finally the paper will try to suggest a possible alternative to present the problem by linking it to Gandhi's idea of rural development?
THE EARLY WRITINGS OF MADHUSUDAN DUTTA: A CRITICAL ANALYSIS
Authors: Sau Sudipta
Published: November 2024

Dutta was a prolific writer and a poet. His early works include ‘The Captive Ladie’ (1849) and ‘The Anglo-Saxon and the Hindu’ (1854). In his early literary career, Dutta exclusively wrote in English, a decision that can be contextualized within the British colonial education system in India. The poem is set against the backdrop of a well-known historical event in India: the expedition of Mahmud of Ghazni and subsequent political dynamics among Indian rulers. Macaulay's advocacy for the promotion of English literature and education in India had a profound impact on his contemporaries, who found themselves at the crossroads of multiple cultural influences.
GENERIC MEDICINES, PATENTING OF PHARMACEUTICAL INVENTION AND ACCESS TO MEDICINE IN INDIA: A CRITIQUE
Authors: Srivastava S.P.
Published: November 2024

In the pharmaceutical industry, firms normally invest hundreds of millions of dollars in R & D and clinical trials on their drugs before it is sold in the market, while their generic medicine rivals are exempted from those requirements and enter the market at low cost with nominal investments. Developed countries medicine companies argue why generic drugs manufacturer should be permitted to reap fruits of patented medicine. However, generic drug manufacturers are of the opinion that big pharmaceutical houses are indulged in unfair practice and they are trying to get extra duration through evergreening patent. The basic formula of the compound is already known, and persons with ordinary skill and knowledge in the art can easily obtain the new crystalline form through general and routine operations. Hence, there is nothing novel to the development of a new crystalline form; instead, it should be manufacturer as a "discovery" of a natural substance, not as an "invention" that can be protected under patent law. Considering the global importance and political-economic stakes involved thereto this paper is an attempt to find out ways for maintaining balance between the Indian Biotech industry, global economic players and government liability to society.
Analitik Hiyerarşi Süreci ve Coğrafi Bilgi Sistemleri Kullanarak Eşen Çayı Havzası’nda Taşkın Riski Değerlendirmesi ve Haritalandırılması
Authors: Karakoca Ebubekir , Ünver Ali
Published: November 2024

BBu çalışmada, Coğrafi Bilgi Sistemi tabanlı Analitik Hiyerarşi Süreci'ne dayalı çok kriterli karar verme tekniği kullanılarak Eşen Çayı Havzası’ndaki olası sel ve taşkın olaylarının değerlendirmesi ve taşkın duyarlılık haritasının oluşturulması amaçlanmaktadır. Bu doğrultuda ilk olarak taşkın olaylarının meydana gelmesinde etkili olan fiziki ve beşerî coğrafi faktörler değerlendirilmiştir. Sonrasında ArcMap 10.5 programında taşkın riskinin kapsamlı bir şekilde sunulabilmesi için AHS’ye dayalı veri setleri oluşturulmuştur. Bu veri seti içerisinde akarsuya yakınlık, yükseklik, eğim, bakı, arazi kullanımı, yağış, toprak ve jeoloji özellikleri olmak üzere 8 kriter değerlendirilmiştir. Bu kriterlerin analizi sonucunda elde edilen taşkın risk modeli verilerine göre Eşen Çayı Havzası’nda Eşen Çayı, Akçay ve Karaçay’ın vadi tabanları ile Eşen Ovası çok yüksek riskli taşkın alanları olarak dikkat çekmektedir. Toplam havza alanı içerisinde yüksek riskli ve çok yüksek riskli alanların payının yaklaşık olarak %37 olduğu düşünüldüğü zaman taşkın riskli yerlerin göz ardı edilemeyecek kadar önemli bir paya sahip ve dikkatle izlenmesi gereken alanlar olduğunu söylemek mümkündür. Bu alanlarda yaşanabilecek taşkınlar, daha önceki yıllarda olduğu gibi birçok can kaybının yaşanmasına ve havza ekonomisi için önem arz eden tarım ve turizm faaliyetlerinin sekteye uğramasına neden olacaktır. Son olarak, elde edilen taşkın modelinin doğruluğu, son yıllarda havza içerisinde yaşanan önemli taşkın olaylarının gözlemleriyle de ortaya konulmuştur
Hőségtervek felmérése a hazai szociális, gyermekjóléti és gyermekvédelmi intézményekben (2019-2021)
Authors: Páldy Anna , Rudnai Tamás , Beregszászi Tímea
Published: November 2024

Az éghajlatváltozással kapcsolatos kihívásokra az egészségügyi és szociális ellátórendszereknek új, megfelelő válaszokat kell találni, mivel a demográfiai változások azokat a csoportokat érintik, amelyek ezeket a szolgáltatásokat leginkább igénybe veszik. A szociális ellátórendszer kiemelt szerepét az éghajlatváltozáshoz való alkalmazkodásban megerősíti a Nemzeti Éghajlatváltozási Stratégia (NÉS-2), ami előírja a nagyobb létszámú csoportokat ellátó (szociális, oktatási) intézmények számára a hőhullámok kezelésére irányuló „intézkedési terv” összeállítását. A Nemzeti Népegészségügyi és Gyógyszerészeti Központ jogelőd intézménye az I. és II. Éghajlatváltozási Cselekvési Tervben megfogalmazottak szerint végzett kérdőíves felméréseket a hőségriasztással kapcsolatos intézkedésekről 2019-2022 között a szociális alap- és szakosított szolgáltatást nyújtó intézményekben; a gyermekjóléti alapellátások és gyermekvédelmi szakellátások körében; az óvodákban és bölcsődékben. Felmérték az épületek korát, a felújítások szükségességét, a hőséggel kapcsolatos intézményi alkalmazkodóképességet. Rákérdeztek a hőségriasztások alatti intézkedések megtételére is. Az épületek korára és a felújítási igényekre vonatkozó válaszok szerint a szociális intézmények 70%-a 30-70 éves épületben van elhelyezve, míg a többi intézmény 50%-a működik ilyen korú épületben. A legnagyobb arányban (60%) a szociális intézmények szorulnak felújításra, beleértve az energiahatékonyságot; míg legkisebb, 14%-ban a bölcsődék. Az elmúlt években végrehajtott intézkedések közül kiemelendő, hogy a gyermekintézményekben korlátozzák a nagy melegben a szabadtéri tartózkodást, nagy figyelmet fordítanak a változatos folyadékpótlásra, a megfelelő öltözet viselésére, valamint fürdési, zuhanyzási lehetőséget biztosítanak. A környezet hűtése is változatos módon történik. Gondot fordítanak a könnyű, folyadékdús étrend összeállítására, továbbá a dolgozók egészségvédelmére is. A szociális intézményekben elsősorban a folyadékpótlással, a szobák árnyékolásával és az ellátottak egészségi állapotának ellenőrzésével kapcsolatos intézkedéseket említették. A válaszadók 80%-a jelezte, hogy hűti a hálószobákat, 70%-ban odafigyelnek a gondozottak öltözködésére, viszont csak egyharmaduk biztosít speciális étrendet. A felmért intézmények kb. harmada rendelkezik hőségtervvel; a hőségriasztásról hivatalos értesítést a szociális és gyermekjóléti intézmények 80%-a, az óvodák és bölcsődék kb. 50%-a kapott. A hőségriasztások idején az intézmények 93-100%-a számolt be intézkedésekről. A tervvel nem rendelkezők több mint harmada szeretne hőségtervet készíteni. A felmérés rámutatott arra, hogy szükség van átfogó, intézményspecifikus hőségterv-útmutatók kidolgozására, amelyek időközben elkészültek, és 2024 első negyedévében megkapta minden intézmény. A továbbiakban szükséges a felmérések megismétlése az intézményi alkalmazkodás nyomon követésére.
Genetic Diversity Analysis of Ethiopian Barley (Hordeum vulgare L.) Genotypes Based on Agronomic Traits Using Cluster and Principal Component Analysis
Authors: Wale Sefinew , Dejene Tiegist , Bayable Muluken
Published: November 2024

Genetic diversity is essential for barley breeding, enabling the selection of desirable traits for improvement. Previous genetic diversity studies on barley have not been sufficient compared to the genetic resources available in the gene bank and ever-changing weather conditions. This study was therefore conducted to assess the extent of genetic variability and association of agronomic traits in barley genotypes at the Adet and Debark experimental stations during the 2023 main cropping season. Eighty-one barley genotypes were evaluated using a 9x9 simple lattice design. The analysis of variance revealed a high level of variability among barley genotypes. The first four principal components at Adet accounted for 78.4% of the total variation, while the first five components accounted for 80.5% at Debark. Traits such as grain-filling period, plant height, biomass, grain yield at Adet, grain yield, grain-filling period, harvest index, and thousand-seed weight at Debark contributed most to the first two components. The biplot analysis also revealed a strong negative correlation between days to heading and leaf rust severity with grain yield, harvest index, and grain filling period. Using hierarchical cluster analysis, the genotypes were grouped into five clusters at each location, each with a specific trait composition. and clusters I and III (71.84). At Adet, the greatest intercluster distance was between clusters II and IV (75.0), followed by clusters II and III (59.35), while at Debark, it was between clusters III and V (103.98), followed by clusters III and IV (82.14). The greater intercluster distance observed in this study indicates genetic diversity among the barley genotypes. This study also identified high-yielding genotypes (5, 9, 18, 32, 41, 50, 51, 53, 54, 60, 65, 68, 75) with grain yield potentials ranging from 2681.2 kg.ha -1 to 7291.6 kg.ha -1 at Debark and 80.5 kg.ha -1 to 4631.8 kg.ha -1 at Adet. These genotypes show potential as varieties for selection or as parents for hybridization. However, multi-year and multi-location trials are needed to confirm these results.
Pelaksanaan Pembelajaran Berdiferensiasi Pada Mata Pelajaran Ilmu Pengetahuan Alam dan Sosial (IPAS) Kelas IV SDN Embung Karung
Authors: Siswani Siswani , Sudirman Sudirman , Angga Prayogi Dwina
Published: November 2024

Pembelajaran berdiferensiasi adalah pendekatan yang menyesuaikan konten, proses, dan produk pembelajaran agar selaras dengan kebutuhan, minat, dan kemampuan siswa yang beragam. Penelitian ini bertujuan untuk menghasilkan pemahaman mendalam mengenai persiapan, pelaksanaan, dan evaluasi pembelajaran berdiferensiasi yang dilakukan oleh guru. Metode penelitian yang digunkaan adalah metode kualitatif dengan desain deskriptif yang melibatkan guru dan siswa kelas IV SDN Embung Karung. Metode pengumpulan data dikakukan melalui wawancara, observasi, dan dokumentasi. Teknik analisis data yang digunakan yakni; pengumpulan data, reduksi data, penyajian data, dan penarikan kesimpulan. Keabsahan data diuji melalui triangulasi teknik dan sumber. Hasil penelitian menunjukkan bahwa Guru melaksanakan pembelajaran berdiferensiasi melalui persiapan, pelaksanaan hingga pada tahap evaluasi dengan baik. Guru melakukan persiapan awal dengan melakukan tes diagnostik kemudian menyusun strategi pembelajaran yang sesuai. Diferensiasi konten, diferensiasi proses, dan diferensiasi produk juga dilakukan oleh guru berdasarkan pemetaan kebutuhan siswa. Faktor pendukung berasal dari siswa yang antusias, suasana belajar yang menyenangkan dan sarana prasarana yang memadai. Faktor penghambat utama dalam pembelajaran ini membutuhkan waktu lebih lama. Sehingga,  guru  dan kepala sekolah melakukan refleksi bersama di setiap minggunya. Dapat disimpulkan bahwa guru di SDN Embung Karung berhasil menerapkan pembelajaran berdiferensiasi melalui persiapan, pelaksanaan, dan evaluasi yang baik, meskipun terkendala waktu yang lebih lama dan memerlukan refleksi mingguan untuk perbaikan.
Hiperestimulação ovariana grave
Authors: Rocha Mariana Aguiar , Loukili Yasmin Fawzia Cardoso , Neves Eduarda Santos Elias das , Costa Rafaella Marques , Oliveira Rebeca Gomes de , Costa Pietra Tiezerin , Teixeira Camille Oliveira
Published: November 2024

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Bronquiolite Grave
Authors: Camara Valentina de Avila Gomes Carneiro Dutra , Souza Ana Luiza Oliveira de , Lima Felipe Falquievicz de , Aleixo Laura de Sá Quintella , Prado Luana da Costa , Azevedo Matheus Feitosa de , Souza Natalia Camilo de , Pereira Nicole Maria Abreu
Published: November 2024

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Intoxicação grave
Authors: Rocha Mariana Aguiar , Berres Larissa de Cássia da Silva , Araújo Daniella da Silva , Pinto Bianca Fernanda , Lopes Maria Clara Nascimento , Mello Vitória Revelles de , Santos Ana Beatriz Guimarães , Rocha Maria de Lourdes Freitas Santos
Published: November 2024

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Guia de Emergência - Cirurgia Geral
Authors: Brauna Carina
Published: November 2024

O eBook "Guia de Emergência - Cirurgia Geral" é um recurso essencial para estudantes de medicina, oferecendo uma visão prática e completa sobre o atendimento em situações de emergência cirúrgica. Projetado para auxiliar na identificação e manejo rápido de condições agudas, este guia aborda as principais emergências encontradas na prática cirúrgica, incluindo abdome agudo, perfurações, hemorragias e traumas.

Dividido em capítulos detalhados, o eBook cobre uma ampla gama de emergências, desde quadros como apendicite aguda, pancreatite, obstrução intestinal e peritonite, até traumas abdominais complexos. Cada condição é apresentada com foco no diagnóstico rápido, avaliação clínica e manejo cirúrgico adequado, incluindo indicações para intervenções imediatas e protocolos pré e pós-operatórios que ajudam a estabilizar o paciente e prevenir complicações.

Além do manejo técnico, o guia também aborda as complexidades da tomada de decisão em ambiente de emergência, discutindo temas como avaliação de risco e prioridade, ética na decisão por intervenções invasivas, e comunicação clara e eficaz com a equipe e com os familiares. Esses aspectos são fundamentais para que o futuro cirurgião desenvolva uma prática profissional segura e humanizada.

Por fim, o eBook traz uma visão sobre as inovações tecnológicas na área cirúrgica, como as ferramentas de imagem avançadas e os procedimentos minimamente invasivos, que vêm revolucionando o atendimento emergencial e aumentando a segurança dos pacientes. Esse guia é, portanto, uma referência valiosa para estudantes de medicina, oferecendo os fundamentos necessários para enfrentar as emergências em cirurgia geral com segurança e eficiência, preparando-os para decisões críticas na prática clínica.
Hemorragia gastrointestinal alta ou baixa
Authors: Vieira Bárbara Rico , Silva Juliana Fontes Gondin , Silva Ana Caroline Pereira da , Volpi Sofia , Souza Diego Nogueira de , Pacífico Eloah Paula , Martins João Carlos do Nascimento , Reis Gustavo Henrique Almeida
Published: November 2024

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Isquemia aguda de extremidades com risco de perda de membro
Authors: Maciel Thais Milena , Barbosa Flávia Alessandra Mendes , Martins Ivana Louise da Silva , Nunes Ana Beatriz Albuquerque , Silva Juliana Menezes Teixeira da , Santos Débora Francisco dos , Costa Ana Ivina de Carvalho , Vieira Camila Repsold
Published: November 2024

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Hérnia estrangulada
Authors: Martins Ivana Louise da Silva , Plens Lorena Carvalho , Oliveira Neto José Ferreira de , Lima João Vitor Junior Soares de , Pinto Guilherme Soares , Pinheiro Glendse Giovanna Costa , Nogueira Lorrany , Silva Danniel França Rodrigues , Andrade Maria Júlia Vasconcelos Fernandes de , Unda Dayana , Silva Bianca Rafaela Farias da
Published: November 2024

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Síndrome de Chiari Budd (obstrução hepática venosa) aguda
Authors: Sousa Willércia Santos , Dias Maria Eduarda Cruz Silveira , Plens Lorena Carvalho , Nascimento João Paulo Galvão , Messina Maria Eduarda Dantas , Martins Flavia Kublinski , Alves Sofia Soares , Cirilo Fabiane Lima
Published: November 2024

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Ruptura de órgão oco (por exemplo, ruptura de bexiga ou estômago)
Authors: Perin Camille Gulart , Reis Gabriela Martins , Martins Flavia Kublinski , Leão Lucas Lima Serrano , Carneiro Ana Raquel de Souza , Lima Annie Kamilly Souza , Caixeta Adrielle Veloso , Silva Mateus Siliano Prado da , Lopes Barbara de Freitas Oliveira , Bascur Ricardo
Published: November 2024

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Abscesso intra-abdominal complicado
Authors: Carvalho Nara Emilly Sanches de , Guimarães Riadylla Pitzr Fonseca , Teixeira Kauê Silva , Silva Levi Durães Batista da , Koch Letícia Hofacker de Abreu , Paula Germana Gabriela Araújo , Conceição Wingrid Raiane Barreto Gonçalves , Cruz Ana Carolina Fernandes da
Published: November 2024

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