bluuebunny/crossref_metadata_2025_split huggingface dataset:
A clinical study to analyse the effect of treatment on visual outcomes in bilateral refractive myopic amblyopia in pediatric population
Authors: Khan Rinaz , Sisodiya Rishendra Singh 
Published: August 2023

To determine the efficacy of treatment on visual outcomes in bilateral refractive myopic amblyopia according to the degree of amblyopia and myopia in children of 4-18 years of age-group.This prospective interventional study enrolled 25 cases with bilateral myopia in the age group of 4-18yrs excluding those with organic cause. Thorough ocular examination carried out including subjective test, torch-light and slit-lamp examination, fundoscopy, cycloplegic refraction, wet retinoscopy,. Myopia not improving with best-corrected visual acuity[BCVA] selected and classified according to the degree of amblyopia. The Initial and final BCVA compared converted to log MAR scale for statistical analysis. Treatment planned according to degree of amblyopia and myopia were macular stimulation, occlusion, and combination of occlusion with macular stimulation and spectacle correction. Follow-up period was 1 year with initial weekly visits followed by monthly visits. Percentage improvement of visual acuity assessed in each patient.Among 25 cases, with respect to difference in amblyopia grade in BE, maximum mild amblyopia in 10 eyes improved with macular stimulation and 8 eyes of moderate-severe amblyopia improved with combination of macular stimulation and occlusion. P-value[0.01] is statistically significant with macular stimulation in LE.Untreated refractive errors in myopic are more prone to develop bilateral amblyopia. Timely proper treatment and compliance are necessary for visual improvement.
Diagenetic effect on reservoir quality of siliciclastic and volcaniclastic sandstones from a Paleogene volcanic rifted margin, East Greenland
Authors: Weibel Rikke , Vosgerau Henrik , Larsen Michael , Guarnieri Pierpaolo , Kokfelt Thomas Find , Dideriksen Knud , Balić-Žunić Tonci , Bell Brian 
Published: August 2023

ABSTRACT
Siliciclastic and volcaniclastic sediments in a volcanic rifted-margin succession may experience a complex diagenetic history during burial that can have a large impact on sandstone reservoir properties. To understand such changes, variations in initial sediment composition and succeeding diagenetic changes have been studied for a Paleogene outcrop analogue in the Kangerlussuaq area, East Greenland. The nature of the mafic volcanics-bearing succession, which consists of intra-volcanic sandstones, accommodated over quartz-rich pre-volcanic fluvial sandstones, are comparable to the settings of recently discovered hydrocarbon-producing sandstones in the Faroe–Shetland Basin on the conjugate Atlantic margin. Our petrographic and provenance investigations of the pre- and intra-volcanic sandstones are supported by geochemical and X-ray diffraction analyses. The intra-volcanic sandstones were deposited in shallow marine environments with mixed siliciclastic and volcaniclastic input, the latter rich in felsic to mafic volcanic rock fragments and feldspar grains. Similar zircon age distributions of pre- and intra-volcanic sandstones support a continued supply from the same siliciclastic sediment source after the onset of volcanism. Variations in initial detrital grain and pore-fluid (fresh to marine) compositions resulted in different diagenetic changes in the pre- and intra-volcanic sandstones. However, where siliciclastic sandstones were overlain by volcaniclastic rocks rather than massive lava flows, the diagenetic changes resemble those of the intra-volcanic sandstones. The cementing phases are typically quartz, illite (probably illitized kaolinite), and rare anatase in the pre-volcanic sandstones. Chlorite, calcite, zeolite/feldspar, opal/quartz, and titanite are characteristic authigenic phases in the intra-volcanic sandstones. Precipitation of different minerals in the pre- and intra-volcanic sandstones show that the detrital composition (and to a lesser extent depositional environment) played a major role during early and late diagenesis after deep burial (up to 6–8 km). Inter-eruptive siliciclastic units may prove to form highly valuable reservoirs when they are composed of mixed siliciclastic and volcaniclastic material. In the stratigraphically youngest intra-volcanic sandstones and pre-volcanic sandstones overlain by hyaloclastite or tuff, there is a high potential for preservation of interparticle porosity during burial (&lt; 5 km) due to early chlorite rims and the generation of secondary porosity after the dissolution of early zeolite cement.
Saltern, mudflat, and dry playa: playa basin types of a retreating epeiric sea (Keuper, Germany)
Authors: Leitner Christoph , Köster Mathias , Finger Friedrich 
Published: August 2023

ABSTRACTPlaya basins contain saline lakes and the evaporitic mudflats around them. However, playa basins can be different if they are fed by marine incursions, dominated by perennial lakes of brackish or fresh water, or dominantly dry. A discrimination of playa types, which originated under such different conditions, can be difficult in the rock record. The present study contributes to our understanding of these settings by reconstructing the evaporitic facies evolution in the German Keuper Basin after the retreat of an epeiric sea. The Middle to Late Triassic Grabfeld Formation (ca. 237–233 Ma) consists of weathered gypsum and dolomitic marl at the surface. Non-weathered anhydrite and dolomitic marl successions were studied at the tunnel face and on drillcores for the Stuttgart 21 construction project around Stuttgart. From oldest to youngest, the following facies were recognized: 1) The Grundgipsschichten facies represents an environment of large, shallow, sulfate lagoonal lakes (saltern). Arenitic sulfate was deposited in very shallow waters, comprising many tepee-like structures, enterolithic folds, and numerous truncation surfaces. 2) The Bochingen-Horizont facies is characterized by greenish gray laminated mudstone and dolomite deposited in perennial saline lakes. Anhydrite was locally altered by brackish or fresh water. 3) The Dunkelrote Mergel facies contains the sediments of a dominantly dry playa basin, red mudstone and nodular anhydrite. Sheetfloods resulted in ephemeral lakes under a monsoonally controlled climate. Sedimentation was sparse with numerous truncation surfaces. Large, festoon-like structures on the tunnel face were interpreted as paleo-gilgai structures. This study concludes that an evaporative environment of a coast (coastal sabkha) can never undoubtedly be distinguished from a playa basin in the sedimentary record.
Joint Congestion Strategy Based on Cross-Layer Awareness in IoV
Authors: Wang Hui , Li HaoYu , Qiang Le , Zhao Yuan 
Published: August 2023

Abstract
In view of the complex communication environment of Internet of Vehicles(IoV) and the difficulty of fast information sharing among layers under the traditional layered approach, we proposed a joint congestion strategy in IoV based on cross-layer awareness, which we refer to as JCSCLA in the paper. Firstly, considering the interrelationship of physical layer, MAC layer and transport layer, JCSCLA establishes the overall architecture of joint congestion strategy based on cross-layer awareness and shares the network state information through the cross-layer scheduling module. Secondly, JCSCLA adopts channel avoidance mechanism based on Markov chain to avoid channel congestion, uses the network resource allocation utility function and adjustment factor to control transmission rate, and controls the transmission rate of the link according to the priority of the data stream to achieve overall control of cross-layer congestion, respectively. Finally, the simulation analysis shows that the JCSCLA has better performance in terms of average delay, average hop count and throughput rate compared to CLCC, VC-TCP/NC, TOSCL, New Reno, and has higher practical application value.
New Joint Channel Estimation and Interference Cancellation Method for FBMC Systems Based on Recurrent Neural Networks
Authors: Al-Makhlasawy Rasha , Khairy Mayada 
Published: August 2023

Abstract
Filter bank multicarrier (FBMC) is an important system used in fifth generation (5G) networks to maximize available bandwidth while meeting high spectral efficiency requirements (SE). Multicarrier modulation (MC) is an alternative modulation method used by FBMC. It is a viable alternative to the orthogonal frequency division multiplexing (OFDM) modulation method. This paper focuses on the joint channel estimation and interference cancellation (JCEIC) in FBMC systems. Recurrent neural networks (RNN) are used to estimate the ideal channel and get back the correct transmitted signal with low BER. We estimate the channel for doubly-selective channels using scattered pilots in the time and frequency correlation, and we use low-complexity interference cancellation. For JCEIC, RNN is proposed. The JCEIC algorithms' output sequences are used as inputs for the RNN. The simulation results show that the suggested technique is close to the ideal channel and has a higher BER than the other earlier methods.
A cryptic pocket in METTL3-METTL14 regulates m6A conversion and sensing
Authors: Gupta Yogesh , Qi Shan 
Published: August 2023

Abstract

The nuclear METTL3-METTL14 enzyme complex transfers a methyl group from S-adenosyl-L-methionine (SAM) to the N6 amino group of an adenosine (A) base in RNA to convert it to m6A and in ssDNA to 6mA. m6A marks are prevalent in eukaryotic mRNAs and lncRNAs and modulate their stability and fate in a context-dependent manner. The cytoplasmic METTL3 can act as a m6A reader to regulate mRNA translation. However, the precise mechanism that actuates the switch from m6A writer to reader/sensor is unclear. Here, we present a ~2.5Å crystal structure of the methyltransferase core of human METTL3-METTL14 in complex with the reaction product, N6-methyladenosine monophosphate (m6A), representing a state post-catalysis but before the release of m6A. m6A occupies a novel evolutionarily conserved cryptic pocket in METTL3-METTL14 located ~16Å away from the SAM pocket that frequently mutates in cancer. We propose a two-step model of swiveling of target A upon conversion to m6A and sensing its methylation status by the cryptic pocket, enabling it to actuate enzymes’ switch from writer to an m6A-sensor. Cancer-associated mutations cannot distinguish methylated from unmethylated adenine and show impaired RNA binding, de-stacking, and defective m6A writing and sensing.
A novel parallel mammogram sharpening framework using modified Laplacian filter for lumps identification on GPU
Authors: Pal Manas , Biswas Tanmoy , Basuli Krishnendu , Biswas Biswajit 
Published: August 2023

Abstract

In medical diagnosis, mammographic imaging is mainly concerned with the breast parenchymal patterns (counterbalance of glandular tissue and fatty tissue) by which an expert radiologist can quickly determine the abnormalities in the breast of cancer patients and if the interpretation of mammogram and the quality of mammogram both are well provided. Accordingly, improved mammographic view via an efficient image processing algorithm plays a significant role in diagnosing mammograms. This study introduces a sharpening method based on the modified Laplacian filter on CUDA to improve the visibility and detection of pernicious lesions in a mammogram. To process considerably large mammograms on the CPU, the conventional Laplaciansharpening is more time-consuming due to the processing of all pixels in a serial execution manner. Although this type of image sharpening is well established for improved image quality, its effect on a larger image for use in the GPU environment has not been extensively studied. The proposed model is successfully devised and implemented in an efficient parallel execution manner on a computing platform of GPU. The proposed method applies a new nonlinear filter constraints module in the sharping stage. The Laplacian filter attenuates noise sensitivity and leads to achieving visually improved results in comparison to formal sharping. The proposed method has been extensively compared with other recent baseline methods showing improvement in the computational cost of the image sharping approach. Experimental results establish that the two proposed sharping methods outperform the state-of-the-art methods with respect to execution speed.
Une comparaison entre les frameworks d’architecture VGG16, VGG19 et ResNet50 pour la classification des images médicales traitées normales et CLAHE
Authors: Kamal Kamal , EZ-ZAHRAOUY Hamid 
Published: August 2023

Abstract
Dans cet article, nous avons choisi de concentrer notre étude sur la recherche du bon modèle de réseau neuronal convexe spécifiquement pour la tâche de classification binaire pour le type d’image médicale à contraste normal et amélioré par la technique CLAHE. Nous avons comparé les architectures de VGG16, VGG19 et Resnet50 en termes de précision, de score F1 et de rappel pour un ensemble d’images cérébrales sélectionnées de cas de contraste normaux et améliorés CLAHE. Après avoir effectué 10 expériences dans deux modes: avec et sans augmentation de données tout en gardant les mêmes paramètres des simulations, nous sommes arrivés à la conclusion que VGG16 présente évidemment la meilleure architecture pour la classification d’images médicales, les résultats à la lumière du mode d’augmentation de données, le cas d’utilisation les images à contraste normal, les trois modèles ont fourni les précisions 0,78, 0,66 et 0,69 respectivement pour VGG16, VGG19 et Resnet50, et pour le cas d’utilisation les images de contraste améliorées par la technique CLAHE, les précisions étant respectivement de 0,78, 0,76 et 0,72 pour VGG16, VGG19 et Resnet50. Pour le mode d’augmentation sans données, le cas d’utilisation des images à contraste normal, les trois modèles ont fourni les précisions de 0,88, 0,79 et 0,75 respectivement pour VGG16, VGG19 et Resnet50, et pour le cas d’utilisation d’images à contraste amélioré par CLAHE, les précisions étant respectivement de 0,86, 0,87 et 0,65 pour VGG16, VGG19 et Resnet50.
Vertebral bone quality different in age and magnetic resonance imaging parameters
Authors: Liu Xiang-Ge , Chen Xin , Chen Biao , Fu Meiqi 
Published: August 2023

Abstract
Objective: We plan to conduct a single-center retrospective study to measure the vertebral bone quality (VBQ) of people of all ages and make statistics on the changes in VBQ with age. Then the differences in VBQ under various MRI parameters were compared. Finally, 30 healthy adults were recruited to validate the differentiation VBQ in various parameters.
Methods: We first screened patients without underlying disease and no history of fractures who underwent lumbar MRI in our center in the past four years. For ten years as a group, each group randomly selected 1.5T, 3.0T 200 (100 males/100 females) patients. Then, we counted the patients hospitalized with OVCF in our hospital in the past four years. The 30 healthy adults received 4 times of MRI scans in different parameters to determine the differentiation of VBQ.
Results: A total of 2400 patients without OVCF and 405 patients with OVCF were collected. VBQ value of 1.5T was significantly higher than that of 3.0T (2.769±0.494 > 2.199±0.432, P<0.0001). VBQ of 43.31khz in 1.5T was significantly lower than 35.36khz (2.447±0.350 < 2.632±0.280, P<0.05). The differentiation of VBQ in 1.5T and 3.0T was validated by the healthy adults’ results.
Conclusions: VBQ remains an effective tool for differentiating patients with OVCF and can be used as a primary screening tool for osteoporosis. However, VBQ is significantly affected by magnetic field intensity and bandwidth and cannot achieve its universality at the proposed beginning.
Effect of Rubidium Fluoride on Grain Sintering and Optoelectronic Properties of Nanostructured CuInSe2 Thin Films Obtained by Solution Processing
Authors: Ruiz Jhoan , Murray Anna , Handwerker Carol , Ramírez Daniel , Agrawal Rakesh 
Published: August 2023

Chalcopyrite CuInSe2 (CISe) and Cu(In, Ga)(S, Se)2 (CIGS) absorber layers, have emerged as promising alternatives in the solar cell field due to their unique properties such as power conversion efficiencies (PCEs) above 20 %, direct bandgap, and high absorption coefficient. This enables the making of high-quality PV devices with absorbers from 2 μm thick, significantly reducing the use of raw materials. Additionally, the CISe absorber layer is a desirable material for Perovskite/CIS tandem configuration with a narrow band gap at the bottom that has demonstrated PCEs close to 25 %, and potential applications in lightweight and/or flexible substrates. Recently, the addition of alkali elements such as sodium, potassium, rubidium, and cesium via post-deposition techniques (PDTs) has demonstrated an improvement in CIGS-based solar cells’ performance. In this study, 10, 20, and 30 nm thick layers of rubidium fluoride were post-deposited on CISe-films made by solution processing techniques and then selenized under a selenium-argon atmosphere to improve the CISe photoelectronic properties such as the number of charge carriers collected and grain growth, critical characteristics to ensure useful photovoltaic devices. Thus, the effect of rubidium fluorine on CISe-based solar cells was analyzed using several characterization techniques. According to the results, thin films made by an amine-thiol mixture with uniform atomic composition were obtained. The crystallinity and grain growth improved with an increase in rubidium fluoride addition. Moreover, with 10 nm of rubidium fluoride, an improvement in the lifetime of the charge carrier, photoluminescence intensity, and the number of carriers collected by the solar cells was obtained.
Analisis Ketimpangan Pendapatan Rumah Tangga Peternak di Kota Jambi
Authors: Pardosi Hotmauli , Firmansyah Firmansyah , Hoesni Fachoerrozi 
Published: August 2023

Penelitian ini bertujuan untuk mengetahui tingkat ketimpangan pendapatan rumah tangga peternak di Kota Jambi baik peternak ayam, itik, kambing dan sapi serta untuk mengetahui perbedaan tingkat pengeluaran rumah tangga antar peternak. Penelitian ini menggunakan metode survey yang dilakukan di 6 kecamatan yaitu Telanaipura, Kota Baru, Jambi Timur, Paal Merah, Pelayangan dan Danau Teluk. Analisis data menggunakan analisis ketimpangan pendapatan (koefisien gini dan kriteria bank dunia) serta uji-t untuk analisis perbedaan tingkat pengeluaran peternak. Tingkat ketimpangan pendapatan peternak di Kota Jambi tergolong rendah berdasarkan koefisien gini (0,22) ataupun kriteria bank dunia. Nilai koefisien gini peternak ayam, itik, kambing dan sapi yaitu berturut-turut 0,26; 0,17; 0,22 dan 0,17. Hasil uji-t diketahui terdapat perbedaan tingkat pengeluaran rumah tangga peternak ayam dengan itik, peternak ayam dengan kambing, peternak ayam dengan sapi, peternak itik dengan kambing, peternak itik dengan sapi, serta tidak terdapat perbedaan antar peternak kambing dan sapi. Kesimpulannya bahwa tingkat ketimpangan pendapatan rumah tangga peternak di Kota Jambi berdasarkan koefisien gini secara umum ataupun berdasarkan komoditas tergolong rendah. Berdasarkan Kriteria Bank Dunia, ketimpangan distribusi pendapatan menunjukkan ketimpangan pendapatan rendah. Pada uji beda (uji-t), terdapat perbedaan tingkat pengeluaran rumah tangga peternak antar komoditas unggas dan komoditas unggas dengan ruminansia serta tidak ada perbedaan antar ruminansia.
Kata kunci: ketimpangan pendapatan; koefisien gini; dan pengeluaran peternak
Pengaruh Penambahan Daun Torbangun (Coleus amboinicus Lour) Yang Diproteksi Tanin Dari Ekstrak Batang Pisang Terhadap Mastitis Kambing Peranakan Etawah
Authors: Qusnidawati Rima , Adriani Adriani , Darlis Darlis 
Published: August 2023

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan daun Torbangun (Coleus amboinicus lour) yang di proteksi tanin dari ekstrak batang pisang terhadap mastisis kambing Peranakan Etawah (PE). Penelitian menggunakan 16 kambing PE bulan laktasi kedua dan ketiga. Penelitian menggunakan Rancangan Acak Kelompok, 4 perlakuan dan 4 kelompok. Perlakuan penelitian yaitu P0 = hijauan + konsentrat, P1 = P0 + 0,5 % daun Torbangun yang diproteksi tanin dari ekstrak batang pisang, P2 = P0 + 1 % daun Torbangun yang diproteksi tanin dari ekstrak batang pisang, P3 = P0 + 1,5% daun Torbangun yang diproteksi tanin dari ekstrak batang pisang. Peubah yang diamati adalah SCC (Somatic Cell Count), jumlah bakteri, CMT (California mastitis test) dan pH. Analisis data menggunakan Anova jika berpengaruh nyata dilanjutkan dengan uji jarak berganda duncan. Hasil menunjukan bahwa penambahan daun Torbangun yang diproteksi tanin dari ekstrak batang pisang berpengaruh tidak nyata (P > 0,05) terhadap jumlah SCC, jumlah bakteri, CMT, dan pH susu. Rataan SCC 6,05 x 103 ± 0,96 x 103 sel/ml. Rataan jumlah bakteri 21,9 x 10³ ± 2.2 x 10³ sel/ml. Rataan CMT 1,55 ± 0,50. Rataan pH 6,71 ± 0,051. Dari hasil penelitian yang telah dilakukan disimpulkan bahwa penambahan daun Torbangun yang diproteksi tanin dari ekstrak batang pisang tidak mempengaruhi mastitis kambing PE, hal ini dapat dilihat pada nilai jumlah sel somatik,, jumlah bakteri, CMT dan pH susu kambing PE yang tidak berbeda jauh dengan kontrol.
Kata kunci : Kambing PE, Daun Torbangun, SCC, Jumlah bakteri, CMT dan pH.
Kualitas fisik Telur Ayam yang di Kemas dalam Plastic Warp
Authors: Mudawaroch Roisu Eny , Rinawidiastuti Rinawidiastuti 
Published: August 2023

Telur ayam mudah mengalami kerusakan, untuk menghambat keruskan telur dengan cara menutup pori pori kerabang telur. Tujuan penelitain adalah untuk mengetahui lama simpan telur ayam ras yang dikeas dalam plastic warm terhadap kualitas fisik. Penelitian ini menggunakan RAL. Kualiatas fisik diamati pada hari ke 0, 7, 14, 21, 28, dan 35. Parameter kualitas fisik meliputi kualitas fisik eksternal dan kualitas fisik internal. Berat telur, panjamg telur, lebar telur, dan indek telur tidak berbeda nyata terhadap kulitas fisik eksternal telur yang dikemas pada kemasan platik warm. Indek putih telur, indek putih telur menurun dengan bertambahnya lama simpan. pH putih telur dan pH kuning telur meningkat dengan bertambahnya lama simpan. Warna telur meningkat dengan meningkatnya umur simpan. Nilai Haugh Units meningkat dengan bertambahnya umur. Kesimpulan bahwa kualitas ekternal telur ayam ras dalam kemasan platik warp dalam suhu ruang tidak berbeda nyata. Sedangkan kualitas internal dengan lama penyimpanan pada suhu ruang semakin menurun pada hari ke 14.
A experiência dos estudantes na Pandemia de COVID-19 e a categoria sociológica de Juventudes: entre o mal-estar coletivo e o "novo normal"
Authors: Cortilho Gabriel Cavallari 
Published: August 2023

Com o fechamento das escolas, o ensino à distância e híbrido, a Pandemia de COVID-19 trouxe diversos impactos para a formação e a participação dos estudantes na esfera escolar, marcando diversas gerações e toda a população. Com a volta às aulas presenciais, tais impactos incidiram de formas distintas sobre as classes, sobretudo entre as e os jovens estudantes da classe trabalhadora. Este artigo orienta-se pelas seguintes perguntas de pesquisa, a saber: quais alterações e mudanças ocorreram na participação e na formação das juventudes do Ensino Médio nesse período? Como a categoria sociológica de juventude pode nos auxiliar na compreensão desse fenômeno? O objetivo é compreender as experiências, a formação educativa e a participação das atuais gerações das e dos jovens em um momento profundamente adverso, marcado por um mal-estar coletivo profundo. O referencial teórico-metodológico poderá ser utilizado como ferramenta de análise para a compreensão do cotidiano, bem como dos sentidos atribuídos pelos estudantes às suas experiências. Trata-se do início de uma pesquisa qualitativa, a partir de textos que se debruçaram sobre as relações entre Pandemia e Educação. Conclui-se que os desdobramentos da pandemia levaram ao mundo dos jovens o aparecimento do fenômeno “novo normal”, em que a competência socioemocional da resiliência, em detrimento da resistência social, foi privilegiada nas escolas.