bluuebunny/crossref_metadata_2025 huggingface dataset:
Red berry snail Sphaerassiminea miniata (Gastropoda: Mollusca) and its potential as a bioindicator of environmental health in mangrove ecosystem of Pomalaa, Kolaka District, Indonesia
Authors: PURNAMA MUHAMMAD FAJAR , PRAYITNO SLAMET B. , MUSKANANFOLA MAX R. , SURYANTI SURYANTI
Published: August 2024

Abstract. Purnama MF, Prayitno SB, Muskananfola MR, Suryanti. 2024. Red berry snail Sphaerassiminea miniata (Gastropoda: Mollusca) and its potential as a bioindicator of environmental health in mangrove ecosystem of Pomalaa, Kolaka District, Indonesia. Biodiversitas 25: 2330-2339. Sphaerassiminea miniata Habe 1942 has a high sensitivity to environmental changes in mangrove forest areas. Its existence can be confirmed when the overall condition of the mangrove ecosystem is in good condition. The aim of this research is to analyze the density and distribution of the S. miniata gastropod population in relation to the density status of mangroves in the reference site area and overburden exposure areas. This research adopted a purposive sampling method for determining research stations, a simple random sampling technique for placing stations or distributing sampling points (sub-stations), and a hand-picking method for technical sampling of S. miniata in the field. The results showed that the mangrove density at each station was very dense (3,700-6,000 trees/ha), the population density of S. miniata ranged from 8.67-38.33 ind./m2, and the distribution pattern of S. miniata at each station was clumped with a Morishita index (Id) value range of 1.28-1.34. Sphaerassiminea miniata was found at all stations in the reference site area (Totobo mangrove ecosystem). No individual was found in the area with overburden exposure (Dawi-Dawi mangrove ecosystem). Changes in the environmental tone in the Dawi-Dawi mangrove ecosystem, especially the substrate area through the input of sediment waste (overburden), which has been going on for a long time and continuously (until now), directly degrades the living space of the S. miniata population on the ground floor (benthos) of the waters. The vulnerability of this species to environmental changes makes it a limiting factor in the quality of habitat health in mangrove ecosystems (Bioindicators).
Molecular characterization of Sweet potato feathery mottle virus and sweet potato yield loss due to its infection
Authors: WIRYA GUSTI NGURAH ALIT SUSANTA , SELANGGA DEWA GEDE WIRYANGGA , LISTIHANI LISTIHANI , TEMAJA I GEDE RAI MAYA , SUDIARTA I PUTU
Published: August 2024

Abstract. Wirya GNAS, Selangga DGW, Listihani L, Temaja IGRM, Sudiarta IP. 2024. Molecular characterization of Sweet potato feathery mottle virus and sweet potato yield loss due to its infection. Biodiversitas 25: 2355-2362. Sweet potatoes are one of the main sources of carbohydrates for Balinese. "Nasi selo," one of Bali's specialties, uses sweet potato as one of its main ingredients. For the past few years, cultivated sweet potatoes in Bali, Indonesia, manifested symptoms of diseases, particularly purple ring spots, occurring on its young and old leaves. The causative agent of the purple ring symptom is still unknown. Therefore, this study aims to analyze the molecular characteristics of SPFMV Bali isolate and the yield loss estimation it causes. Research methods that were used in this study are survey, sampling, virus identification with RT-PCR using universal Potyvirus as its primer, and field observation to assess the yield loss estimation. Field observation was conducted in five districts in Bali province: Badung, Gianyar, Bangli, Karangasem, and Klungkung. The result indicates that SPFMV infection has been found in these 5 districts, with the highest incidence and severity occurring in Bangli at 86% and 53%. The nucleotide homology of the SPFMV Bali isolates gene has the closest genetic relationship with isolates found in South Korea (MH388494, MH388494) and East Timor (MF572056), at >99%. Based on the latest phylogroup classification, SPFMV is categorized into phylogroups A and B. Phylogroup A consists of SPFMV with O-I strain, O-II strain, and EA strain; phylogroup B only consists of SPFMV with RC strain. Isolate SPFMV found in Bali, has an O strain that belongs to the same group as the O-I strain, also seen in South Korea, East Timor, and China. Actual yield loss that was found by comparing sweet potatoes suffering from purple rings symptom with the one without purple rings symptom reveals a yield loss of 50.9%. Harvested sweet potatoes with purple ring symptoms showed quality deterioration in malformation, discoloration, hollowing, and changes in color and shape. Yield loss of up to 29.53% in fields with a disease severity of 53% has caused a loss of IDR 2,105,166.
A competição de gramática(s) em José de Alencar
Authors: Silva Corôa Williane , De Araújo-Adriano Paulo Ângelo
Published: August 2024

Observando diferentes gêneros textuais escritos por diferentes autores, alguns trabalhos em diacronia vêm sugerindo que tal diferença influencia os resultados da pesquisa (cf. GALVES, 2018; BIAZOLLI; BERLINCK, 2021; ARAÚJO-ADRIANO; CORÔA, 2022). Neste estudo, abordamos a influência do gênero textual nos resultados diacrônicos, argumentando que diferentes gêneros textuais podem moldar a gramática utilizada pelos autores, refletindo diferenças entre a língua escrita e a língua falada, em um processo de Competição de Gramáticas (KROCH, 1989). O objetivo foi investigar a relação entre o gênero textual e a gramática internalizada de um mesmo autor. Para isso, foram analisadas a expressão do Tempo presente (forma analítica estar + gerúndio versus forma sintética) e a posição do clítico com o verbo em primeira posição (próclise versus ênclise) em dois textos de um mesmo autor, José de Alencar, um romance e um texto teatral, a fim de verificar se os gêneros influenciam o uso gramatical. Em suma, o estudo busca argumentos que apoiem a tese de que as formas linguísticas utilizadas pelos falantes ao longo do tempo são influenciadas pelos gêneros textuais, mostrando a existência de variação diagênica.
O discurso da mineração sustentável: uma análise sobre uma propaganda da BAMIN (2021)
Authors: Muniz Lisboa Andréia , Ramos Ghiraldelli Paula , Barbosa Soares Thiago
Published: August 2024

Este trabalho apresenta uma análise discursiva sobre uma propaganda audiovisual da empresa Bahia Mineração Ltda (BAMIN), produzida em 2021. O objetivo é identificar os mecanismos discursivos que sustentam o discurso da mineração sustentável como fator de desenvolvimento econômico, carro chefe da propaganda. O aporte teórico-metodológico empreendido ancora-se no campo de saber Análise do Discurso, sobretudo, a partir dos trabalhos de Michel Pêcheux (1993, 2011, 2014) e Orlandi (2007, 2009, 2015), dos quais foram utilizadas as noções de condições de produção, formações discursivas e formação imaginária. Tais conceitos permitem compreender os sentidos gerados pela composição audiovisual do objeto, verificando como engendram aspectos sócio-históricos, políticos, ideológicos; dispõem uma configuração de dizeres permitidos pela base ideológica da propaganda e; produzem imagens discursivas que operam como legitimadoras do discurso em questão. Os gestos de descrição e interpretação mobilizados na análise mostraram formações imaginárias construídas pelos traços do cuidado e de trabalho, além de uma formação discursiva voltada para a política de segurança e sustentabilidade ambiental na mineração, centro da proposta de inovação no setor mineral e melhoria na economia do país, mobilizada pelo discurso da mineração à seco. A movimentação de sentidos na materialidade instaura instâncias discursivas que mostraram que o discurso da mineração à seco, como grande potencial econômico e de segurança ambiental, aforiza os silenciamentos a respeito dos impactos socioambientais sobre os quais as condições da propaganda emergem, colocando em xeque as tais práticas que se dizem sustentáveis.
As habilidades de Análise Linguística/Semiótica e Produção de Textos em um livro didático de LP do PNLD 2022: uma análise sob a ótica do sistema da transitividade
Authors: Regner Ana Paula , Linhati Suzana Toniolo , Pinton Francieli Matzenbacher
Published: August 2024

Em conformidade com a Base Nacional Comum Curricular (BNCC), os livros didáticos do Programa Nacional do Livro Didático (PNLD) estão organizados em competências e habilidades. Nesse sentido, esta pesquisa tem por intuito descrever, à luz do Sistema da Transitividade da Gramática Sistêmico-Funcional (GSF), as habilidades de AL/Semiótica e Produção de Textos da coleção Português: conexão e uso que integra o PNLD – 2022, a fim de verificar em que medida os objetos de conhecimento selecionados contribuem para a articulação dessas práticas considerando o contexto dos gêneros discursivos. O corpus da pesquisa compreende 13 habilidades das práticas de AL/Semiótica e Produção de Textos, do volume destinado ao 9º ano do Ensino Fundamental, unidades 1 e 2, seções Leitura 2. Os procedimentos de análise foram divididos em três etapas: i) organização das habilidades de AL/Semiótica e Produção de Textos, ii) segmentação das habilidades em orações e iii) análise dos processos, participantes e circunstâncias nas habilidades. A análise apontou a predominância de processos mentais cognitivos seguidos de processos materiais transformativos, os quais revelam a ênfase nas figuras do pensar e do fazer. Em relação aos participantes, os textos majoritariamente são contemplados como objetos de conhecimento, o que revela um avanço parcial para a exploração do nível extralinguístico da linguagem. Por fim, as circunstâncias, em sua maioria, explicitam o contexto de aprendizagem requerido, o qual ocorre no nível da oração, nos textos lidos e produzidos pelo aluno e no gênero narrativo (habilidades de AL/Semiótica) assim como em diferentes gêneros textuais (habilidades de Produção de Textos).
Universal strategy study of applying passive metasurfaces to an intra-DC wireless-optical interconnection
Authors: Qiu Weijie , Hou Weigang , Huang Jianou , He Xiangyu , Guo Pengxing , Guo Lei
Published: August 2024

Free-space optical (FSO) communication can reduce the routing complexity of data center networks (DCNs), not only ensuring high-capacity optical switching, but also owning similar flexibility to the wireless connectivity. Presently, mainstream wireless-optical switching units (WOSUs) have adopted serial beam control for unicasting. As a two-dimensional planar structure composed of meta-atoms with special electromagnetic properties arranged in a certain way, a passive metasurface (PMF) has strong parallel beam regulating capability. In this paper, we propose a wireless-optical intra-DC interconnection scheme based on PMFs. Through a real PMF chip, by adjusting the polarization of an incident beam, the power distribution between normal and abnormal reflected beams can be controlled. When both reflected beams are assigned with power, we obtain a pair of beams reflected in parallel, thus simultaneously communicating with two racks. In fact, we can perform 1-to-N (N≥2) multicast by using cascaded PMFs, and 1-to-N means that each source rack can communicate with N destination racks, i.e., a wide communication coverage range. However, the cascaded PMFs may result in huge chip costs and high accumulated power loss. In this paper, we only demonstrate the 1-to-2 communication ability of our PMFs, so the communication coverage may be still limited. Hence, by introducing electrostatic drive to control the PMF rotation, each source rack can achieve a wider communication coverage range than before. As a result, all racks within the coverage range have the ability to establish communication links with the source rack. To this end, we also design a neural network to mimic the PMF rotation, further improving the communication capability between racks. We then propose a DCN-topology reconfiguration algorithm supporting the coexistence of unicasting and multicasting, in order to make real-time decisions on the matching between FSO ports with minimized latency. Finally, we established a proof-of-concept prototype system to demonstrate the parallel beam control of our PMF. The test results show that the angle error is less than 0.1°, satisfying the accuracy requirements of WOSUs, and our PMF always has a good polarization response with the insertion loss of less than 2 dB under various azimuth angles or rotation planes.
Latitude- and time-zone-aware load balancing in optical satellite networks
Authors: Gao Kexin , Wang Wei , Zhao Yongli , Xiao Yanran , Zhang Xin , Hu Liyazhou , Zhang Jie
Published: August 2024

Leading by the development of Starlink, the low earth orbit (LEO) satellite networks are expected to be the customer-grade Internet infrastructure for carrying Internet traffic. In this paper, focusing on network usage fluctuations that are caused by both human activity variations in work and rest time slots and inter-orbital-plane ISL length variations, we introduce the time-zone-based traffic model and the link compensation matrix into the global satellite network. Accordingly, we propose relay routing algorithms to balance the workload of the satellites over different time zones and latitudes, and we also compare the proposed algorithms with the baseline strategies. Then simulation results show that the proposed model and algorithm can achieve a 97.23% reduction in blocking ratio with a 0.29% increase in latency.
Rapid-calibration optical tunable delay line on 3-µm-thick SOI photonic platforms
Authors: Li Ang , Zhao Nengyang , Wang Hao , Liu Xianghua , Liu Chenyang , Ding Yanyue , Qiu Chao , Wang Ruxue , Wu Aimin
Published: August 2024

Optical tunable delay lines (OTDLs) which can capture temporal optical signals, and overcome the challenge of halting light are crucial for optical communications and microwave photonics. Here, a rapid-calibration 8-bit OTDL on the 3-µm-thick silicon-on-insulator (SOI) platform consisting of waveguide spirals and integrated optical switches is proposed, achieving a maximum delay time of 3570 ps with a resolution of 14 ps/stage. The large delay is attributed to the spirals of a 3-µm-thick SOI platform featuring a delay efficiency of approximately 11.49 ps/mm, with wavelength-insensitivity transmission loss of 0.32 dB/cm, and the polarization-dependent loss is only 0.075 dB/cm within 140 nm bandwidth. In addition, the optical switches with extinction ratios up to 50 dB. Integrated variable optical attenuators can suppress crosstalk and facilitate rapid calibration for OTDLs. The advantages of OTDLs’ large delay time, high signal-to-noise, and rapid calibration make them suitable for optical programmers and microwave photonics radars.
Ultra-high spatial resolutions in photopatterning molecular orientations
Authors: Yun Hai , Jiang Songxu , Chen Hao , Zhu Youyang , Xu Xinzhu , Li Bingxiang , Xi Peng , Jiang Miao , Wei Qi-Huo
Published: August 2024

Accurately aligning liquid crystal molecules into predetermined spatially variant orientations is crucial for fabricating devices such as flat optical elements, soft actuators and robots. Despite the developments of various photopatterning techniques for this purpose, the limits of their spatial resolutions have been rarely addressed. In this study, we delve into the physical constraints governing the spatial resolutions of two prominent photopatterning methods: single exposure to light fields with structured polarizations and multi-exposures to light fields with structured intensities. Theoretical analyses show that the minimal grating period of the first method is only half of the Abbe limit of an intensity imaging system, and that the minimal grating period for the second system can surpass the Rayleigh limit. Experimental studies demonstrate unprecedent high spatial resolution with minimal grating periods of 1 µm. We further establish that the minimal core size in photopatterned singular topological defects is linearly proportional to the minimal grating period and the topological charge and that these photopatterning techniques can yield less than 1 µm defect cores that are in high demand for applications such as coronagraphs.
Optimization and realignment of OAM mode excitation in ring-core optical fibers using machine learning
Authors: Demas Jeffrey , Hary Mathilde , Genty Goëry , Ramachandran Siddharth
Published: August 2024

Light beams carrying orbital angular momentum (OAM) in free space or
within optical fibers have a wide range of applications in optics;
however, exciting these modes with both high purity and low loss
generally requires demanding optimization of excitation conditions in
a high dimensional space. Furthermore, mechanical drift can
significantly degrade the mode purity over time, which may limit
practical deployment of OAM modes in concrete applications. Here,
combining an iterative wavefront matching approach and a genetic
algorithm, we demonstrate rapid and automated excitation of OAM modes
with optimized purity and reduced loss. Our approach allows for
systematic computational realignment of the system enabling drift
compensation over extended durations. Our experimental results
indicate that OAM purity can be optimized and maintained over periods
exceeding 24 h, paving the way for the applications of stable OAM
beams in optics.
Lightwave-controlled relativistic plasma mirrors
Authors: Ouillé Marie , Kaur Jaismeen , Cheng Zhao , Haessler Stefan , Lopez-Martens Rodrigo
Published: August 2024

We report on attosecond-scale control of high-harmonic and fast electron emission from plasma mirrors driven by relativistic-intensity near-single-cycle light waves at a kHz repetition rate. By controlling the waveform of the intense light transient, we reproducibly form a sub-cycle temporal intensity gate at the plasma mirror surface, leading to the observation of extreme ultraviolet spectral continua, characteristic of isolated attosecond pulse (IAP) generation. We also observe the correlated emission of a waveform-dependent relativistic electron beam, paving the way toward fully lightwave-controlled dynamics of relativistic plasma mirrors.
Concurrent performance and security enhancement of ultrahigh-order DSM signals via null subcarriers
Authors: Zhao Jianye , Liu Bo , Ren Jianxin , Mao Yaya , Liu Haojun , Zhong Qing , Wu Xiangyu , Chen Shuaidong , Li Ying , Song Xiumin , Zhao Lilong
Published: August 2024

In this paper, we propose leveraging null subcarriers in discrete multi-tone modulation (DMT) to process the DMT signal in both time and frequency domains. Additionally, we employ discrete memory enhanced chaos (DMEC) to scramble the signal in the frequency domain, thereby achieving physical layer signal encryption while ensuring a more uniform power distribution in the time-domain waveform. In our experimental demonstration, we achieved high-security transmission of a DSM-based 65536-QAM signal at a data rate of 16.01 Gb/s over a 25 km single-mode fiber (SMF) in an intensity-modulation direct-detection (IMDD) system. Additionally, in the transmission experiments for 13684-QAM and 65536-QAM signals, the proposed method demonstrated a receiver sensitivity gain of over 0.5 dB compared to the traditional DSM-based ultrahigh-order transmission.
Diffusion model predicts the geometry of actin cytoskeleton from cell morphology
Authors: Li Honghan , Liu Shiyou , Deguchi Shinji , Matsunaga Daiki
Published: August 2024

Cells exhibit various morphological characteristics due to their physiological activities, and changes in cell morphology are inherently accompanied by the assembly and disassembly of the actin cytoskeleton. Stress fibers are a prominent component of the actin-based intracellular structure and are highly involved in numerous physiological processes, e.g., mechanotransduction and maintenance of cell morphology. Although it is widely accepted that variations in cell morphology interact with the distribution and localization of stress fibers, it remains unclear if there are underlying geometric principles between the cell morphology and actin cytoskeleton. Here, we present a machine learning system that uses the diffusion model to convert the cell shape to the distribution and alignment of stress fibers. By training with corresponding cell shape and stress fibers datasets, our system learns the conversion to generate the stress fiber images from its corresponding cell shape. The predicted stress fiber distribution agrees well with the experimental data. With this conversion relation, our system allows for performing virtual experiments that provide a visual map showing the probability of stress fiber distribution from the virtual cell shape. Our system potentially provides a powerful approach to seek further hidden geometric principles regarding how the configuration of subcellular structures is determined by the boundary of the cell structure; for example, we found that the stress fibers of cells with small aspect ratios tend to localize at the cell edge while cells with large aspect ratios have homogenous distributions.
Neutrophil-percentage-to-albumin ratio is associated with chronic kidney disease: Evidence from NHANES 2009–2018
Authors: Li Jinxi , Xiang Ting , Chen Xinyun , Fu Ping
Published: August 2024

Introduction

The neutrophil-percentage-to-albumin ratio (NPAR), a novel inflammatory biomarker, has been used to predict the prognosis of patients with cancer and cardiovascular disease. However, the relationship between NPAR and chronic kidney disease (CKD) remains unknown. The purpose of this study was to investigate the possible association between NPAR and CKD.

Methods

The cross-sectional study included participants with complete information on NPAR, serum creatinine (Scr), or urinary albumin-to-creatinine ratio (UACR) from the 2009–2018 National Health and Nutrition Examination Survey (NHANES). CKD was defined as the presence of either low estimated glomerular filtration rate (eGFR) or albuminuria. Univariate and multivariate logistic regression and restricted cubic spline regression were used to assess the linear and nonlinear associations between NPAR and renal function. Subgroup and interactive analyses were performed to explore potential interactive effects of covariates. Missing values were imputed using random forest.

Results

A total of 25,236 participants were enrolled in the study, of whom 4518 (17.9%) were diagnosed with CKD. After adjustment for covariates, the odds ratios (ORs) for prevalent CKD were 1.19 (95% CI = 1.07–1.31, p <0.05) for the Q2 group, 1.53 (95% CI = 1.39–1.69, p < 0.001) for the Q3 group, and 2.78 (95% CI = 2.53–3.05, p < 0.001) for the Q4 group. There was a significant interaction between age and diabetes mellitus on the association between NPAR and CKD (both p for interaction < 0.05). And there was a non-linear association between NPAR levels and CKD in the whole population (p for non-linear < 0.001). All sensitivity analyses supported the positive association between NPAR and CKD.

Conclusions

NPAR was positively correlated with increased risk of CKD. The NPAR may serve as an available and cost-effective tool for identifying and intervening the individuals at risk of CKD.
Scientific misconduct responsibility attribution: An empirical study on byline position and team identity in Chinese medical papers
Authors: Peng Xiaoting , Hu Dehua , Guo Yi , Jiang Hao , Wu Xunsheng , Hu Qingyuan
Published: August 2024

Objective

The primary objective of this inquiry was to explore the nexus between authorship attribution in medical literature and accountability for scientific impropriety while assessing the influence of authorial multiplicity on the severity of sanctions imposed.

Methods

Probit regression models were employed to scrutinize the impact of authorship on assuming accountability for scientific misconduct, and unordered multinomial logistic regression models were used to examine the influence of authorship and the number of bylines on the severity of punitive measures.

Results

First authors and corresponding authors were significantly more likely to be liable for scientific misconduct than other authors and were more likely to be penalized particularly severely. Furthermore, a negative correlation was observed between the number of authors’ affiliations and the severity of punitive measures.

Conclusion

Authorship exerts a pronounced influence on the attribution of accountability in scientific research misconduct, particularly evident in the heightened risk of severe penalties confronting first and corresponding authors owing to their principal roles. Hence, scientific research institutions and journals must delineate authorship specifications meticulously, ascertain authors’ contributions judiciously, bolster initiatives aimed at fostering scientific research integrity, and uphold an environment conducive for robust scientific inquiry.
Damage in organically produced potted herbs: How can we get a grip on this?
Authors: Olivera Matías , Schreiner Maximilian , Meinken Elke , Lohr Dieter
Published: August 2024

The reduction of peat in the growing media and the use of organic fertilizers have been causing damage, whose cause is unclear. A cross-cutting factor is the almost exclusive presence of soluble nitrogen as ammonium in growing media. In the literature, either direct ammonium toxicity or outgassing of ammonia are discussed as possible reasons. However, these explanations are not consistent since there are cases in which (1) no damage occurs despite a high ammonium content and (2) damage occurs despite a pH below 6.5. The objective of this study was to identify the factors that influence the occurrence of damage related to: Growing media constituents, Organic fertilizers, Interaction between growing media and organic fertilizers, and Effect of storage of growing media.We evaluated the phytotoxic potential of growing media on the growth of organically fertilized basil and coriander using mixtures of various peats and composts.The results corroborated that neither the formation of ammonia nor direct ammonium toxicity is the main cause of damage. However, missing nitrification and thus accumulation of ammonium might be an indicator for the presence of the true causal agent, which seems to be related to peat and be counteracted by the compost. This indicates a microbial cause.
Perbandingan Pembentukan Portofolio Optimal Model Indeks Tunggal Menggunakan Return Aset Bebas Risiko Sukuk dan Sertifikat Bank Indonesia Syariah (SBIS)
Authors: Uswatun Sri Istiyarti , Azhar Jeihan Ali
Published: August 2024

Portofolio optimal merupakan portofolio dengan kombinasi antara keuntungan yang diharapkan dan risiko terbaik sesuai dengan preferensi investor. Terdapat beberapa model yang digunakan dalam pembentukan portofolio optimal, salah satunya adalah model Indeks Tunggal. Model indeks tunggal didasarkan pada pengamatan bahwa harga dari suatu sekuritas berfluktuasi searah dengan harga pasar. Model indeks tunggal menghitung optimasi perbandingan antara keuntungan yang diharapkan dan risiko portofolio, yang dilambangkan dengan θ . Variabel input yang digunakan untuk membentuk portofolio optimal dengan Model Indeks Tunggal adalah return saham, return pasar dan return aset bebas risiko. Pada penelitian ini akan dibandingkan return aset bebas risiko (risk free rate) menggunakan data dari sukuk dan Sertifikat Bank Indonesia Syariah (SBIS). Hasil portofolio optimal dengan return aset bebas risiko menggunakan data sukuk memberikan keuntungan sebesar 0.0188 setiap minggu dan risiko sebesar 0.0729 setiap minggu. Sedangkanhasil portofolio optimal dengan return aset bebas risiko menggunakan data dari Sertifikat Bank Indonesia Syariah (SBIS) mengahsilkan keuntungan sebesar 0.018561 setiap minggu dan risiko sebesar 0.072293 setiap minggu. Dengan menggunakan ukuran kinerja portofolio optimal indeks sharpe maka portofolio optimal yang terbaik menggunakan return aset bebas risiko Sertifikat Bank Indonesia Syariah (SBIS).
A Qualitative Meta-Analysis of Kahoot! in Language Instruction
Authors: Sağlamel Hasan , Yıldırım Mehmet Akif
Published: August 2024

Mobile- and computer-based applications have become more prominent and popular since the COVID-19 pandemic. Digital tools have been used by teachers and students worldwide for educational purposes and in language classrooms. One such application is Kahoot!, which is an in-classroom or online testing and practice application released in 2013 and widely used in a variety of classrooms for entertaining practice for students, and a way for teachers to test students’ gains. Even though Kahoot! is extensively used and researched in language teaching/learning contexts, a meta-analysis of studies with particular focus on qualitative findings has been out of radar.  This proposal addresses this gap by offering an in-depth meta-analysis of qualitative studies and findings investigating the application.  Research articles utilizing qualitative methods published between 2013, Kahoot!'s official beta release, and 2022 were gathered and analyzed to reveal trends, limitations, and gaps in the literature. The findings revealed that the majority of students and teachers who participated in Kahoot! quizzes reported positive sentiments, though several concerns were raised regarding their effective use. This analysis suggests that improving instructional effects in educational settings hinges upon well-informed decision-making processes, skilful classroom management, and proficient computer literacy. When strategically employed, these factors can significantly enrich educational practices.
Editorial
Authors: Dvořáková Michaela , Lánský Ondřej
Published: August 2024

Editorial
Angiographic evaluation of coronary artery disease in diabetic patients with and without end‐stage kidney disease
Authors: Gholoobi Arash , Ahmadi Mahnaz , Ghoraba Saeed , Bigdelu Leila , Najaf Najafi Mona , Baradaran Rahimi Vafa
Published: August 2024

The objective of the present investigation was to compare the coronary angiography results in diabetic patients with and without end‐stage kidney disease (ESKD). We included prolonged diabetic patients with ESKD (93 patients) and without ESKD (control group, 126 patients). Angiography of the coronary arteries was performed on all patients. Our results revealed that the ESKD patients tended to have a higher degree of coronary artery stenosis in all parts of LAD (p = 0.001, 0.024, and 0.005), proximal and distal RCA (p = 0.013, and 0.008), and proximal and distal LCX artery (p = 0.001, 0.008) than non‐ESKD patients. Furthermore, we found that the ESKD group had higher significant coronary artery stenosis in the LAD artery (60.5% vs. 39.5%, p < 0.001), RCA (60.3% vs. 39.7%, p < 0.001), LCX artery (79.5% vs. 20.5%, p < 0.001), and LMCA (84.6% vs 15.4%, p = 0.002) compared to control group. There was a greater prevalence of multiple vessels coronary artery disease (≥ two) among ESKD patients (29%), compared with the non‐ESKD group (16.8%, p < 0.001). Significant coronary artery stenosis was meaningfully higher in asymptomatic diabetic ESKD patients on hemodialysis than non‐ESKD diabetic patients. Coronary angiography may be beneficial in diabetic patients with ESKD regardless of whether they have ischemic symptoms with low complication rate through radial access.
EMILiA: Effiziente und nutzungsorientierte E-Mail-Archivierung mithilfe (teil-)automatisierter Prozesse
Authors: Beyer Nico , Gericke Felix , Hinze-Hüttl Alexander
Published: August 2024

Angesichts der Flüchtigkeit digitaler Daten und der wachsenden Bedeutung der elektronischen Kommunikation sowohl im privaten als auch im dienstlichen Bereich, müssen zeitnah Lösungen für eine erfolgreiche Übernahme, langfristige Sicherung, Speicherung und rechtskonforme Zugänglichmachung von E-Mails gefunden werden. Das EMILiA-Projekt zielt darauf ab, Gedächtnisinstitutionen mithilfe der Entwicklung einer teilautomatisierten Software bei der Archivierung von E-Mails zu unterstützen. Im Anschluss an den Projektzeitraum ist die Ausgründung in Form eines Start-up-Unternehmens geplant.
Climate change impacts on the distribution of Dryomys laniger (woolly dormouse) in Türkiye: a data-driven approach
Authors: Helvacı Zeycan
Published: August 2024

This study examines the population structure, ecological niche, and vulnerability to climate change of the woolly dormouse Dryomys laniger in Türkiye. Integrating genetic data with species distribution modeling, the research predicts suitable habitats for D. laniger under current and future climate change scenarios until the year 2100. Using an ensemble of two machine learning models, this study finds that by 2040, the range of D. laniger will be reduced significantly, particularly in southern populations. Eastern areas emerge as a potential refuge, showing slight expansion and colonization. The low genetic diversity in this eastern population indicates the need for long-term adaptability of D. laniger. Due to the unique adaptive potential of each population, this research highlights the importance of region-specific management plans to ensure the long-term survival of this species, which appears to be vulnerable to habitat fragmentation.
Untersuchung der dynamischen Beanspruchung bionischer Leichtbauverzahnungen mittels DMS
Authors: Thomaneck Philipp , Freyberg Axel von , Fischer Andreas
Published: August 2024

Zur Untersuchung der dynamischen Beanspruchung von ganzheitlich bionischen Leichtbauverzahnungen wird ein In-Prozess-Messsystem mit Dehnungsmessstreifen (DMS) verwendet. Diese werden auf Leichtbaustrukturen im Radkörper montiert, wo eine hohe Sensitivität erwartet wird. Die plausiblen und reproduzierbaren experimentellen Ergebnisse belegen, dass sich mit diesem Messansatz die dynamischen Beanspruchungen während der Rotation des in Eingriff befindlichen Zahnrads auflösen und vergleichend bewerten lassen. Zukünftig können so ein sensorisches Zahnrad, welches seine Beanspruchung im Betrieb kontinuierlich überwacht, und eine darauf aufbauende Regelung zur Vermeidung von Ausfällen realisiert werden.
High-resolution coherence scanning immersion interferometry for characterization of technical surface topographies
Authors: Stelter Andre , Käkel Eireen , Hillmer Hartmut , Lehmann Peter
Published: August 2024

Die Kohärenz-Scanning- Interferometrie ist eine berührungslose optische Messmethode zur hochauflösenden dreidimensionalen Charakterisierung von Oberflächentopographien. Um die laterale Auflösung eines Interferenzmikroskops zu verbessern, wurde erstmals ein Linnik-Interferometer mit hochaperturigen Immersionsobjektiven aufgebaut und zur Messung technischer Oberflächen eingesetzt. Diese Studie zeigt den Einfluss eines Immersionsmediums zur Verbesserung der lateralen Auflösung und vergleicht Immersions- und Nicht-Immersionssysteme in Bezug auf Signalbildung und Übertragungsverhalten im dreidimensionalen Ortsfrequenzraum. Die Messergebnisse von transparenten AMONIL®-Gittern zeigen eine signifikante Verbesserung der Signalqualität im Vergleich zum Nicht- Immersionssystem. Außerdem werden Messergebnisse von Halbkugeln vorgestellt, die durch Substrate Sonformal Imprint Lithography substrukturiert wurden.
Instances of bias: the gendered semantics of generic masculines in German revealed by instance vectors
Authors: Schmitz Dominic
Published: August 2024

While research using behavioural methods has repeatedly shown that generic masculines in German come with a male bias, computational methods only entered this area of research very recently. The present paper shows that some assumptions made by these recent computational studies – treating genericity as an inflectional function and computing a vector for generic usage strongly correlated with the grammatical masculine – are not without issue, and offers the use of semantic instance vectors as a possible solution to these issues. Beyond this methodological improvement, the present paper finds that generic masculines are indeed semantically more similar to specific masculines than to specific feminines – results that are in line with findings by the recent computational studies and the majority of previous behavioural studies.
A criação de um museu de imigração alemã no pós-nacionalização
Authors: Weber Roswithia
Published: August 2024

O artigo analisa o processo de criação de um museu de imigração alemã, no final da década de 1950, no contexto do pós- nacionalização, no Rio Grande do Sul. Para tal, relaciona-se identidade local, identidade étnica, memória e patrimônio histórico-cultural na cidade de São Leopoldo. Busca-se evidenciar como a conjuntura do pós –nacionalização, bem como as diretrizes culturais do estado, influenciaram na forma de criação do Museu Histórico Visconde de São Leopoldo.
Dinâmicas de Cultura Imaterial no Contexto de Mudanças Sociais em Burkina Faso
Authors: Kibora Ludovic
Published: August 2024

Desde o periodo colonial que as populações africanas sofrem, de maneira perniciosa,toda sorte de agressões culturais. Essa alienação cultural foi sabiamente denunciada por grandes pensadores e pesquisadores africanos. Ela está na base do sub-desenvolvimento que caracteriza os países da Africa ao sul do Sahara. A adoção pela UNESCO da Convenção de 2003 sobre o Patrimônio Cultural Imaterial poderá ser uma ocasião para revalorizar os elementos culturais de países como Burkina Faso. De fato, este país apresenta inúmeras manifestações culturais de envergadura internacional e numerosos são os atores dos domínios das artes e da cultura que defendem que, a despeito do petróleo, o país pode contar com seus produtos culturais para chegar a um verdadeiro desenvolvimento sócio-econômico.Esse artigo visa, através de alguns exemplos,apresentar a evolução da prática de salvaguarda de culturas imateriais no interior de comunidades burkinabe em um contexto de transformação social.
O Papel do Planejamento nos Pequenos Museus
Authors: Cândido Manuelina Maria Duarte
Published: August 2024

Discuto a incontornável necessidade dos museus, mesmo os de menor porte, trabalharem com planejamento e avaliações. A partir de uma reflexão surgida em um evento sobre museus municipais, afirmo que exatamente por suas fragilidades, os pequenos museus necessitam das ferramentas de planejamento – para o que apresentamos uma matriz para diagnóstico museológico e planejamento que poderá ser aplicada aos diferentes casos em combinação com outras mais conhecidas, como a matriz SWOT.
O Tombamento do Conjunto Urbano de São João del-Rei: Negociação e Conflito na Construção do Patrimônio Cultural (1938-1967)
Authors: Tavares Denis Pereira
Published: August 2024

Pretendemos neste ensaio assinalar a emergência de um campo de conflito em torno das fronteiras e formas de uso, apropriação e possessão dos bens simbólicos da cidade de São João del-Rei. Nesse campo, os atores com projetos distintos de apropriação e uso da cidade disputaram o próprio poder de definição dos objetos que poderiam ser legitimamente sancionados como “patrimônio” e, portanto, dignos de ser transmitido às gerações futuras.
Audiodescrição no Contexto da Educação Patrimonial
Authors: Marçal Carolina Schwaab , Mangan Patrícia Kayser Vargas
Published: August 2024

Este ensaio descreve resultados de uma pesquisa sobre audiodescrição no contexto da educação patrimonial, utilizando uma capela centenária como estudo de caso. Teve por objetivo propor um modelo de audiodescrição que atendesse às necessidades de deficientes visuais. Com o resultado desta pesquisa algumas contribuições foram feitas nesse contexto. As avaliações realizadas contaram com o apoio de deficientes visuais e especialistas em audiodescrição. A metodologia dessa pesquisa e os resultados obtidos podem servir como base para futuras iniciativas de audiodescrição e educação patrimonial.
Da oralidade à escrita da história organizacional:Desafios textuais e contextuais na Universidade Católica de Brasília
Authors: Oliveira Sheila da Costa
Published: August 2024

Este estudo de caso aborda a escrita da históriaorganizacional sob a vertente da oralidade (Febvre, Thompson, Heynneman e Rémond), abordagemespecialmente importante a partir da concepção das organizações comoorganismos vivos, com umahistória própria que ultrapassa o conjunto das histórias individuais e também digna de registro. Essa visão referenda o uso dahistória oral num movimentopresente-passado, antes que os sujeitos e fatos se desloquem de seus observadores. As perguntas-problema são: Dada atendência de que a história organizacional se torne cada vez mais escrita, o uso da oralidade nesse contexto épertinente?  Que desafiostextuais e contextuais isso significa? Para responder a isso, observou-se o Projeto Memória e Históriada Universidade Católica de Brasília – UCB. O estudo identificou dificuldades e desafios inerentes ao manejo dasentrevistas orais e sua transformaçãoem fonte histórica e pode servir de referência a outras equipes de Memória e HistóriaOrganizacional.
Reflexões acerca das relações entre o Museu de Arte Leopoldo Gotuzzo (MALG) e a sociedade pelotense
Authors: Magalhaes Clarice Rego
Published: August 2024

Este trabalho consiste em reflexões acerca de uma instituição museal e sua relação com a sociedade na qual está inserida. A instituição é o Museu de Arte Leopoldo Gotuzzo, situado na cidade de Pelotas, no Rio grande do Sul, órgão da Universidade Federal de Pelotas. A sociedade pelotense, que configura o contexto do museu, tem características peculiares, herança de uma época, o ciclo do charque, em que a cidade teve um singular desenvolvimento social e cultural. O estudo mostra que quando da gênese do Museu, as obras das suas coleções representavam a sociedade pelotense da época, seus valores e seu imaginário. Hoje, estas coleções trazem, por meio das obras de arte e outros itens que as compõem, o passado da cidade ao presente. Isso permite que este passado seja conhecido e discutido, e o conhecimento nas áreas da memória, do patrimônio e das artes avance.
Memórias regionais no IHGB: os centenários das Revoluções Pernambucana e Farroupilha - 1917 e 1935
Authors: Rodrigues Mara
Published: August 2024

As comemorações de dois centenários, especialmente o da revolução farroupilha, servirão como eixo para estruturar este artigo sobre a releitura de memórias regionais através de seus porta-vozes autorizados a intervir no debate historiográfico nacional durante a primeira república. Em 1917 e 1932-1935, respectivamente, as comemorações dos centenários das revoluções pernambucana e farroupilha em sessões solenes do Instituto Histórico e Geográfico Brasileiro (IHGB) oportunizaram o acionamento de discursos memoriais e identitários, tendo como pano de fundo o processo mais amplo de republicanização das memórias nacionais em curso desde os primeiros anos após o 15 de novembro de 1899. O principal objetivo deste artigo é compreender as noções de história e as estratégias narrativas conscientes ou não dos intérpretes regionais na busca pela autorização recíproca do passado regional e de sua voz/escrita. Ao mesmo tempo, pretende-se investigar o processo através do qual as memórias regionais deveriam se coadunar de forma coerente com a tradição historiográfica e o programa cívico nacional laboriosa e longamente construídos no IHGB desde o século XIX.
Distinct Neural Plasticity Enhancing Visual Perception
Authors: Kondat Taly , Tik Niv , Sharon Haggai , Tavor Ido , Censor Nitzan
Published: August 2024

The developed human brain shows remarkable plasticity following perceptual learning, resulting in improved visual sensitivity. However, such improvements commonly require extensive stimuli exposure. Here we show that efficiently enhancing visual perception with minimal stimuli exposure recruits distinct neural mechanisms relative to standard repetition-based learning. Participants (n = 20, 12 women, 8 men) encoded a visual discrimination task, followed by brief memory reactivations of only five trials each performed on separate days, demonstrating improvements comparable with standard repetition-based learning (n = 20, 12 women, 8 men). Reactivation-induced learning engaged increased bilateral intraparietal sulcus (IPS) activity relative to repetition-based learning. Complementary evidence for differential learning processes was further provided by temporal–parietal resting functional connectivity changes, which correlated with behavioral improvements. The results suggest that efficiently enhancing visual perception with minimal stimuli exposure recruits distinct neural processes, engaging higher-order control and attentional resources while leading to similar perceptual gains. These unique brain mechanisms underlying improved perceptual learning efficiency may have important implications for daily life and in clinical conditions requiring relearning following brain damage.
CHIA SEEDS (SALVIA HISPANICA L.): A COMPREHENSIVE LOOK AT THEIR ATTRIBUTES, PHYTOCHEMICAL PROFILE, AND IMPACT ON HEALTH
Authors: Doğan Güney Hilal , Göbel Pınar
Published: August 2024

This article presents a comprehensive review of the characteristics, phytochemical profile and health effects of chia seeds. Chia seeds belong to the Lamiaceae family, and are small, oval and colored seeds that grow in tropical and temperate climates. Chia seeds are rich in protein, fiber, minerals, phenolic compounds and polyunsaturated fatty acids. These nutrients give chia seeds functional properties such as antioxidant, anti-inflammatory, hypolipidemic, hypoglycemic and prebiotic. Chia seeds may play a potential role in the prevention and treatment of chronic diseases such as cardiovascular diseases, diabetes, obesity, digestive system diseases and cancer. Chia seeds can be consumed whole, ground into flour or extracted into oil and added to various foods. Moreover, chia seeds have technological functions such as water retention, emulsification and viscosity enhancement in the food industry. Chia seeds have become a popular functional food in recent years and are being researched. However, more clinical studies and meta-analysis studies are needed on the health effects of chia seeds.
Multiscale non-linear tale risk spillover effect from oil to stocks – The case of East European emerging markets
Authors: Zivkov Dejan , Kuzman Boris , Papic-Blagojevic Natasa
Published: August 2024

This paper investigates the multiscale non-linear risk transmission effect from Brent oil to eleven European emerging stock markets. Dynamic extreme risk time series are created using the FIAPARCH-CVaR approach. The MODWT transformation is applied to make three wavelet details that represent different time horizons. In the final step, the MODWT time series are fitted into the Markov switching model to examine the spillover phenomenon. The results indicate that the Czech and Hungarian stock markets endure the spillover effect in crisis regime in the short term, probably because these markets are among the most efficient emerging European markets. On the other hand, a relatively high spillover effect is found in a peaceful rather than a crisis regime in the case of Poland. This is probably because the Polish index lists almost 300 stocks, which means that oil shocks disperse to a large number of different industry sectors. In small and less developed markets, such as Estonia, Slovenia, Bulgaria, and Croatia, a high spillover effect exists in a tranquil regime because these countries have high oil consumption per capita. Lithuania and Latvia do not report the spillover effect in the short run, while this is true for all time horizons in the case of Slovakia.