bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preventing Foodborne Illness: Bacillus cereus
Authors: Kharel Karuna , Bookman Kiara , Goodrich Schneider Renee , Silverberg Rachael , Kurdmongholtham Ploy , Bertoldi Bruna , Schneider Keith R. 
Published: January 2025

Bacillus cereus is a Gram-positive, facultative, anaerobic bacterium characterized by large rod-shaped cells and an ability to form heat-resistant endospores. Since this bacterium is commonly widespread in the environment and is often found in soil, it is naturally present in a wide range of food products of both plant and animal origin. B. cereus grows best in a temperature range of 39ºF (4ºC) to 118ºF (48ºC). Optimal growth occurs within the narrower temperature range of 82ºF (28ºC) to 95ºF (35ºC) and a pH range of 4.9 to 9.3 (FDA 2012).
A Manager's Role in Obtaining a Fair Day's Work for a Fair Day's Pay—Part I
Authors: Wysocki Allen F. , Kepner Karl W. , Farnsworth Derek , Clark Jennifer 
Published: January 2025

This document explores the role of managers in ensuring associates deliver a fair day’s work for a fair day’s pay. The article discusses eight agree/disagree statements to highlight common management beliefs and their impact on motivation and performance. Part 1.
Secondary quantitative analysis of core research data (2004-2010): A multilevel study of academic achievement and 21st century competencies
Authors: Chan Melvin Chee Yeen , Tan Jennifer Pei-Ling 
Published: January 2025

The Core Research Programme is a large-scale representative study of teaching, learning and cognitive assessment practices and student outcomes. Within this major project, survey and assessment data were collected across three subsidiary projects. Core 1 Panel 2 (2004) and Core 2 Panel 2 (2010) are two unique datasets that focus on how school, classroom and student level factors contribute to individual variation in student achievement and other key 21st century (21C) learning outcomes. Core 1 Panel 6 (2008), on the other hand, is another study that captures a broader range of affective, educational and psychosocial factors.
The overall objective of this proposed study is to undertake secondary quantitative analyses of student achievement and selected 21C (non-academic) learning outcomes using existing datasets from the Core Research Programme. First, the proposed study will investigate and compare the proportion of variation in student achievement data and background characteristics across Singapore classrooms and schools. Next, we will investigate, identify and compare the extent to which the variability in student achievement is influenced by student, classroom and school level factors. Third, by linking two datasets, the proposed study will investigate the longitudinal impact of Primary Six students’ psychosocial and educational characteristics on their Secondary Three academic achievement and 21C (non-academic) learning outcomes.
The proposed study is important for a number of reasons. First, knowledge of the proportion of variance distributions provides important information for school effectiveness regarding expected shifts in the proportion of variation that can be attributed to different levels of analysis. In broader terms, shifts in variation also provide important information that addresses issues of social and educational equity, given practical difficulties in assessing the direct impact of educational policies. Second, since relationships among different educational variables are often interactional in nature, modelling key contributions of student, class and school level effects separately and simultaneously provides important information about which variable matters most for explaining student achievement, controlling for all other variables considered. Third, observations of individual characteristics and the prospective academic achievement and 21C (non-academic) learning outcomes among the same students over time can provide more robust information about important educational input and process factors.
Analisis Mikroplastik Pada Sedimen Di Tapak Kuda Lama Dan Pantai Pulau Gantan Kabupaten Langkat
Authors: envirotek Aryanti Dharma , Sudibyo Mufti 
Published: January 2025

Penelitian ini bertujuan untuk mengetahui bentuk mikroplastik dan kelimpahannya berdasarkan kedalaman dan antar lokasi pengambilan sampel pada Sedimen di Tapak Kuda Lama dan Pantai Pulau Gantan Kabupaten Langkat. Penelitian dilaksanakan pada bulan Maret – Mei 2023. Pengambilan sampel sedimen dilakukan di Tapak Kuda Lama dan Pantai Pulau Gantan menggunakan metode purposive sampling dengan membuat 5 titik pengambilan sampel pada masing – masing lokasi dengan kedalaman 0-30, 30-60, 60-100 cm. Analisis sampel sedimen dilaksanakan di Laboratorium Biologi Universitas Negeri Medan. Identifikasi mikroplastik menggunakan mikroskop stereo dan data yang diperoleh dianalisis dengan Uji Anova One Way dan Uji-T untuk antar lokasi dan kedalaman. Hasil penelitian menunjukan bahwa bentuk mikroplastik yang terdapat pada Sedimen di Tapak Kuda Lama dan Pantai Pulau Gantan adalah fiber, fragmen dan film. Dengan kelimpahan pada setiap kedalaman di Tapak Kuda lama yaitu fiber 320 partikel/kg, film 160 partikel/kg dan fragmen 90 partikel/kg. Kelimpahan di Pantai Pulau Gantan pada setiap kedalaman yaitu fiber 350 partikel/kg, fragmen 200 partikel/kg dan film 120 partikel/kg. Hasil analisis statistik Anova One Way dan Uji -T nilai sig. > 0.05 yang berarti menunjukkan tidak ada perbedaan kelimpahan mikroplastik antar lokasi dan kedalaman di Tapak Kuda Lama dan Pantai Pulau Gantan Kabupaten Langkat.
ANALISIS LAJU KOROSI PADA BAJA ASTM A36 DENGAN VARIASI TEMPERATUR DAN WAKTU PERENDAMAN DALAM ALIRAN AIR LAUT
Authors: Marthiana Wenny , Hamdani Yacob 
Published: January 2025

Abstrak: Perkembangan teknologi pada industri maritim semakin meningkat pesat, namun permasalahan korosi merupakan permasalahan yang masih sering terjadi karena beberapa faktor seperti temperatur, kelembaban dan kandungan kimia di udara. Logam yang paling banyak digunakan dalam industri maritim khususnya pada lambung kapal adalah baja ASTM A36 yang merupakan baja karbon rendah. Tujuan penelitian ini adalah untuk mengetahui variasi suhu dan waktu perendaman terhadap laju korosi baja ASTM A36. Dalam perendaman menggunakan variasi waktu perendaman 24, 72 dan 120 jam. Dengan variasi suhu 29oC, 32oC dan 35oC. Hasil penelitian menunjukkan bahwa laju korosi tertinggi terjadi pada baja ASTM A36 yang direndam pada suhu 35c yang menunjukkan nilai laju korosi sebesar 25,1965 mmpy (24 jam), 30,9557 mmpy (72 jam), 41,3223 mmpy (120 jam). kemudian pada material sampel uji terjadi korosi pitting dan korosi erosi. Hasil penelitian ini menunjukkan bahwa suhu yang tinggi dapat mempercepat laju korosi pada lingkungan laut.
Exploring using HBsAg to predict interferon treatment course to achieve clinical cure in chronic hepatitis B patients: a clinical study
Authors: Yan Fei , Tang Fei , Chen Jing , Lin YiCheng , Chen XinYu , Du Qin , Yin WeiLi , Liang Jing , Liu Lei , Wang Fang , Xu BaiGuo , Ye Qing , Xiang HuiLing 
Published: January 2025

ObjectiveAlthough pegylated interferon α-2b (PEG-IFN α-2b) therapy for chronic hepatitis B has received increasing attention, determining the optimal treatment course remains challenging. This research aimed to develop an efficient model for predicting interferon (IFN) treatment course.MethodsPatients with chronic hepatitis B, undergoing PEG-IFN α-2b monotherapy or combined with NAs (Nucleoside Analogs), were recruited from January 2018 to December 2023 at Tianjin Third Central Hospital. All patients achieved hepatitis B surface antigen (HBsAg) clearance post-treatment.ResultThe study enrolled 176 patients with chronic hepatitis B, with the median IFN treatment course of 35.23 ± 25.22 weeks. They were randomly divided into two cohorts in a ratio of 7:3. And there were 123 patients in the training cohort and 53 patients in the validation cohort. Univariable and multivariable analyses demonstrated that baseline HBsAg, 12 weeks HBsAg and the presence of cirrhosis significantly influenced IFN treatment course, and both are risk factors (β=7.27,4.27,10.91; p&lt;0.05). After adjusting for confounding factors, HBsAg remained a significant predictor (β=6.99, 95%CI: 3.59,10.40; p&lt;0.05), which was finally included to establish the model. The actual and predicted values in the validation cohort were highly matched, meanwhile the mean absolute percentage error (MAPE), root mean square error (RMSE) and accuracy (ACC) of the validation cohort were calculated. External validation also suggests that the model can be used as a tool for initial assessment.ConclusionBaseline HBsAg in chronic hepatitis B patients were a risk factor for prolonged IFN treatment course with a positive correlation. Ultimately, a personalized model based on baseline HBsAg levels can be established to roughly estimate the duration of interferon therapy prior to treatment initiation, thereby guiding clinical decision-making.
Effects of biological and abiotic factors on dark septate endophytes distribution and heavy metal resistance in different environments
Authors: Wang Zhenzhou , Shi Wenyi , Chen Xiuling , Lin Yuli , Chen Wenjing , Yao Li , Sun Xiang , Li Xia , He Xueli 
Published: January 2025

IntroductionExploring the interactions between dark septate endophytes (DSE) in plant roots across diverse heavy metal habitats—considering host plants, site characteristics, and microbial communities—provides insights into the distribution patterns of DSE in metal-rich environments and their mechanisms for developing heavy metal resistance.MethodsThis study collected samples of three common plant species (Phragmites australis, PA, Setaria viridis, SV, and Artemisia annua, AA) and their corresponding soil samples from three heavy metal-contaminated sites: Baiyang Lake, BY, Fengfeng mining area, FF, and Huangdao, HD. Utilizing high-throughput sequencing and physicochemical analysis methods, the biological and abiotic factors affecting DSE colonization and distribution in the roots were investigated.ResultsTwenty-two DSE species were isolated and identified with 11 species found in BY, 8 species in FF, and 11 species in HD. The screening for heavy metal resistance discovered 10 heavy metal-tolerant DSE species. Soil available phosphate, available nitrogen, and Cd contents, as well as the composition of different root fungal communities, influence the resistance and distribution of heavy metal-tolerant DSE. Notably, 12 DSE species, including Paraphoma radicina and Paraphoma chrysanthemicola, were reported for the first time in heavy metal habitats. The colonization rates of DSE in the roots of PA (96%) and AA (76%) were highest in BY, while the highest colonization rate in the roots of SV was observed in HD (94%). Site-specific soil parameters, such as available K, organic contents, Zn, and Cd contents from different sites are the main determinants affecting DSE colonization. Meanwhile, the diversity and richness of other root-associated endophytic fungi, which varied considerably across sites, served as significant biological factors influencing DSE distribution and colonization.DiscussionThe results of this study provide a strong theoretical framework for the effective utilization of DSE fungi to mitigate soil heavy metal pollution.
Survival analysis of a 16-year cohort of follicular lymphoma patients receiving systemic treatment in Brazil
Authors: Azevedo Pamela Santos , Zuppo Laper Isabella , Oliveira Deborah Marta do Santos , Sabino Adriano de Paula , Garcia Marina Morgado , Freitas Isabela Cristina Menezes de , Prata Wallace Mateus , Cherchiglia Mariângela Leal , Álvares-Teodoro Juliana , Acurcio Francisco de Assis , Júnior Augusto Afonso Guerra 
Published: January 2025

IntroductionFollicular lymphoma (FL) is a common type of non-Hodgkin lymphoma that is incurable but often follows an indolent course. While survival is improving thanks to advances in diagnosis, supportive care, and new therapies, understanding outcomes and their impact on overall survival is still limited. There are few studies on FL in Brazil, so this study aims to evaluate the patient’s profile, morbidity and mortality treated by the Brazilian national health service (SUS) and evaluate risk factors associated with treatment failure.MethodsThis is a nationwide 16 years cohort with patients that underwent chemotherapy in the SUS (2000–2015). The Kaplan-Meier method was used to estimate survival until treatment failure, and the Cox proportional hazards model was used to evaluate risk factors.ResultsThe cohort included 10,009 patients and survival rates were 73.3%, 45.3%, and 30.7% for the first, fifth and 10th year respectively. The median overall survival was approximately 4.1 years. The most used regimen was CHOP (13%), followed by CVP (9.7%) and R-CHOP (3.3%). Four hundred and ninety-eight patients (4.9%) used rituximab-containing regimens. Univariate analysis indicated worse survival rates for male patients, those over 65 years of age, clinical stage III or IV and those using non-rituximab-containing regimens. The health technology performance assessment related to oncology schemes for FL suggests that rituximab-based regimens has shown best survival probability (0.52 CI 0.39–0.69) in 78 months of follow up with a HR 1.5 times better than other schemes (HR 0.67; CI 0.55–0.81).DiscussionIn light of the substantial advancements achieved by the SUS, there is a need for CONITEC to expedite decision-making processes in order to enhance patients access to new oncology drugs. This should be done while upholding health technology assessment standards. Timely integration and sufficient funding for oncology services have the potential to save lives, especially when compared to the treatments available within SUS at that time.
ANALISIS KUALITAS LABA DAN NILAI PERUSAHAAN PADA PERUSAHAAN SEKTOR ENERGI YANG TERDAFTAR DI BEI TAHUN 2017-2021
Authors: Irman Mimelientesa , Sari Meylana Permata , Suriyanti Linda Hetri 
Published: January 2025

This research purposed to determine the effect of institutional ownership, managerial ownership, profitability, liquidity, and firm size on earnings quality and their effect on firm value in energy sector companies listed on the IDX for the 2017-2021 period. This study uses secondary data. The sample technique in this study used purposive sampling. The number of samples obtained were 21 companies. The analytical method of this research uses descriptive analysis and several types of evaluation using the SmartPLS software. From this research, it can be concluded that only institutional ownership and profitability (ROA) have a significant influence on earnings quality and firm value. Managerial ownership does not have a significant effect on earnings quality but has a significant effect on firm value. While liquidity (CR) and firm size do not have a significant effect on earnings quality and firm value.

Penelitian ini bertujuan untuk mengetahui pengaruh kepemilikan institusional, kepemilikn manajerial, ROA, CR dan ukuran perusahaan terhadap kualitas laba serta pengaruhnya terhadap nilai perusahaan pada perusahaan sector energy yang terdaftar di BEI periode 2017-2021. Penelitian ini menggunakan data sekunder. Teknik sampel pada penelitian ini menggunakan purposive sampling. Jumlah sampel yang diperoleh sebanyak 21 perusahaan. Metode analisis penelitian ini menggunakan analisis deskriptif serta beberapa jenis evaluasi dengan menggunakan bantuan software SmartPLS. Dari penelitian ini diperoleh kesimpulan bahwa hanya kepemilikan institusional dan profitabilitas (ROA) yang memiliki pengaruh signifikan terhadap kualitas laba dan nilai perusahaan. Kepemilikan manajerial tidak memiliki pengaruh yang signifikan terhadap kualitas laba tetapi memiliki pengaruh signifikan terhadap nilai perusahaan. Sedangkan likuiditas (CR) dan ukuran perusahaan tidak memiliki pengaruh yang signifikan terhadap kualitas laba dan nilai perusahaan.
PENGARUH CELEBRITY ENDORSEMENT, SOSIAL MEDIA MARKETING DAN BRAND IMAGE TERHADAP KEPUTUSAN PEMBELIAN PRODUK KECANTIKAN SOMETHINC (STUDI KASUS PADA MAHASISWI INSTITUT BISNIS DAN TEKNOLOGI PELITA INDONESIA PEKANBARU)
Authors: Suyono Suyono , S Yvonne Augustin , Lydia Lydia , Lydia Lydia , Andi Andi , Fransisca Luciana 
Published: January 2025

This study aims to determine and analyze the influence of celebrity endorsement, social media marketing and brand image on the purchase decision of somethinc beauty products at the Pelita Indonesia Institute of Business and Technology. The population in this study was 1,213 female students at the Pelita Indonesia Institute of Business and Technology. Meanwhile the number of samples taken using the slovin formula is 100 people and will be taken using the accidental sampling methods. Data analysis in this study used multiple linear analysis methods with the help of SPSS version 22. Based on the results of the study, it was found that celebrity endorsement and brand image had a significant positive effect on purchasing decisions, while social media marketing variables did not have a significant positive effect on purchasing decisions on somethinc beauty products. Suggestions for somethinc brands as ideas to consider in choosing and using celebrity endorsements to promote products, in digital marketing and provide quality products.

Penelitian ini bertujuan untuk mengetahui dan menganalisa pengaruh celebrity endorsement, social media marketing dan brand image terhadap keputusan pembelian produk kecantikan somethinc di Institut Bisnis dan Teknologi Pelita Indonesia. Populasi dalam penelitian ini adalah 1.213 mahasiswi di Institut Bisnis dan Teknologi Pelita Indonesia. Sedangkan jumlah sampel yang diambil dengan menggunakan rumus slovin berjumlah 100 orang dan akan diambil dengan menggunakan metode accidental sampling. Analisis data dalam penelitian ini menggunakan metode analisis linear berganda dengan bantuan SPSS versi 22. Bedasarkan hasil penelitian diperoleh bahwa celebrity endorsement dan brand image berpengaruh positif signifikan terhadap keputusan pembelian, sedangkan variabel social media marketing tidak berpengaruh positif signifikan terhadap keputusan pembelian pada produk kecantikan somethinc. Saran bagi brand somethinc sebagai ide untuk dipertimbangkan dalam memilih dan menggunakan celebrity endorsement untuk mempromosikan produk, dalam digital marketing serta menyediakan produk yang berkualitas.
PROFITABILITY, TRADE VOLUME, AND LEVERAGE ON STOCK PRICE VOLATILITY WITH DIVIDEND POLICY AS A MODERATION VARIABLE IN LQ45 INDEXED COMPANIES
Authors: Renaldo Nicholas , Panggabean Jessylane , Suhardjo Suhardjo , Junaedi Achmad Tavip , Horsiando Eric , Sugiyarti Listya , Sutandijo Sutandijo 
Published: January 2025

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh profitabilitas, volume perdagangan, dan leverage terhadap volatilitas harga saham dengan kebijakan dividen sebagai variabel moderasi. Populasi dalam penelitian ini adalah seluruh perusahaan yang terindeks dalam indeks LQ45 periode 2017-2021 sebanyak 45 perusahaan. Teknik pengambilan sampel digunakan dengan metode Purposive sampling. Jumlah sampel penelitian ini adalah 40 perusahaan yang memenuhi kriteria sampel. Teknik pengumpulan data menggunakan laporan keuangan tahunan perusahaan terindeks LQ45 periode 2017-2021, Sedangkan uji asumsi klasik (uji normalitas, uji heteroskedastisitas, uji multikolnieritas, uji autokorelasi), uji model (uji F, uji t, koefisien determinasi). Hasil penelitian ini menunjukkan bahwa profitabilitas berpengaruh negatif terhadap volatilitas harga saham, leverage berpengaruh negatif terhadap volatilitas harga saham, Kebijakan dividen berpengaruh negatif terhadap volatilitas harga saham, Profitabilitas berpengaruh positif dapat diperkuat oleh kebijakan dividen yang berpengaruh positif terhadap volatilitas harga saham, leverage berpengaruh positif dapat diperkuat oleh kebijakan dividen yang berpengaruh positif terhadap volatilitas harga saham

The purpose of this study was to determine the effect of profitability, trading volume, and leverage on stock price volatility with dividend policy as a moderating variable. The population in this study are all companies indexed in the LQ45 index for the 2017-2021 period, totaling 45 companies. The sampling technique used was purposive sampling method. The number of samples in this study were 40 companies that met the sample criteria. The data collection technique uses the annual financial reports of companies indexed LQ45 for the 2017-2021 period, while the classical assumption test (normality test, heteroscedasticity test, multicollinearity test, autocorrelation test), model test (F test, t test, coefficient of determination). The results of this study indicate that profitability has a negative effect on stock price volatility, leverage has a negative effect on stock price volatility, dividend policy has a negative effect on stock price volatility, profitability has a positive effect can be strengthened by dividend policy which has a positive effect on stock price volatility, leverage can have a positive effect reinforced by dividend policy which has a positive effect on stock price volatility.
Alegoria de fronteira, prática política e canções em portunhol
Authors: Dewes Helyna , Silveira Ada Cristina Machado 
Published: January 2025

O texto registra o propósito de compreender as relações entre mídias e sentimento de pertença supracional na região platina, com enfoque no desempenho do sistema sul-brasileiro. A música da fronteira Brasil-Uruguai expressa em portunhol manifesta certa inadequação ou incômodo no que se refere à identidade e pertencimento cultural. A proximidade fronteiriça, compartilhada entre brasileiros e uruguaios, permite a percepção de uma realidade transnacional, engendrada em conflitos sociais, políticos e econômicos, que são parte da constituição das fronteiras nacionais, mas que não estão contemplados nos complexos efeitos de sentido amparados por estruturas de significação situadas nos Estados nacionais e que com eles podem litigar.
Detuning dependence in current-light-output characteristics of GaN-based DFB laser diodes
Authors: Fukamachi Toshihiko , Nishinaka Junichi , Naniwae Koichi , Usuda Shuichi , Fukai Haruki , Sugitani Akihiko , Uemukai Masahiro , Tanikawa Tomoyuki , Katayama Ryuji 
Published: January 2025

Abstract
We have developed GaN-based laterally coupled distributed-feedback laser diodes (LC DFB-LDs). We focused on the detuning between the DFB-oscillation wavelength and the gain-peak wavelength and systematically investigated the differences in the temperature dependence of the current-light-output (I
-L) characteristics. As the detuning increased, the rate of temperature change in the threshold current decreased. Furthermore, the I
-L characteristics of the DFB-LD with a detuning of +5.3 nm were nearly overlapped within the measured temperature range. Interestingly, the estimated characteristic temperature was negative (−499.4 K). The temperature coefficient of the gain-peak-wavelength shift increased linearly as the detuning increased. On the other hand, the temperature coefficient of the DFB-oscillation-wavelength shift showed a very small dependence on detuning and was 17 pm K−1. These results provide useful insights for designing light sources with very small temperature dependence or light sources that exhibit the best performance at specific temperatures.