bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Comparative Study of Machine Learning and Neural Network
Models in Short-term Market Prediction
Authors: Abu-Ajamieh Fayez 
Published: June 2024

Abstract

The prediction of the stock market and the prices of other commodities like crude oil, 1 constitutes a challenging task. Recently, the rapid progress in the field of Machine Leaning (ML), 2 led to an increased interest in applying ML techniques to market price predictions. In this study, 3 we conduct a comprehensive comparative analysis of the performance of 15 different ML models in 4 predicting the close prices of crude oil futures. These models include an Auto-Regressive Integrated 5 Moving Average (ARIMA) model, the Meta Prophet Library, a simple Recurrent Neural Network 6 (RNN), a Long-Short Term Memory (LSTM), a Gated Recurrent Unit (GRU), a Bi-directional LSTM 7 (BLSTM), a Bi-directional GRU (BGRU) and a number of hybrid models, including an LSTM-BGRU 8 and a BLSTM-BGRU. In addition, we evaluate the effectiveness of using Denoising Autoencoders 9 (DAE) in enhancing the performance of the networks by evaluating hybrid models with DAE layers, 10 including DAE-LSTM, DAE-BLSTM, DAE-GRU, DAE-BGRU, DAE-LSTM-GRU and DAE-BLSTM- 11 BGRU. In our analysis, we focus on short-term predictions dedicated for day trading. We compare 12 the performance of these models using the Root Mean Square Error (RMSE), Mean Absolute Error 13 (MAE), Mean Absolute Error Percentage (MAPE) and the R2. We find that the BGRU model yields the 14 best performance, with the GRU model not far behind. We also find that hybrid models containing 15 BGRUs or GRUs tend to perform better than other hybrid models. We find mixed evidence vis-a-vis 16 the effectiveness of DAEs in improving the performance of networks, where in some models the 17 performance improves, whereas for others the performance deteriorates. We find that the performance 18 of all models deteriorate when predicting sharp and sudden changes in prices. The key takeaway of 19 this study is that BGRUs, and to a lesser extent GRUs, seem to be the best route to follow in applying 20 AI/Ml to the task of market prediction.
Magma oxygen fugacity and volatile components control the Miocene high-Sr/Y granitoids forming either Cu or W mineralization in the Gangdese metallogenic region, Xizang, China
Authors: Wang Li-Qiang , Gao Teng , Li Bao-Liang , Wang Yong 
Published: June 2024

Abstract
Porphyry copper deposits are usually associated with high-Sr/Y granitoids. The Miocene Gangdese porphyry copper belt in southern Tibet is also associated with high-Sr/Y granitoids, which also formed wolframite mineralizations. Why some coeval high-Sr/Y granitoids formed Cu deposits (Cu granitoids) whereas others formed W mineralizations (W granites) remains unclear. We attempt to address this issue by studying the magma sources and properties, analyzing magmatic zircons, biotites and apatites in theses granites, and combing this information with previously published bulk-rock and zircon isotopic data. In-situ chemical analyses of magmatic zircon, biotite and apatite suggest that the properties of the magmas that produced the Cu granitoids and W granites were significantly different. Zircon ΔFMQ values of the W granites are much lower than those of the Cu granitoids, suggesting a more reduced magma for W mineralizations. Water content of the W granites (7-9 wt.%) seems to be lower than that of the Cu granitoids (10-12 wt.%). This is suggested by the low zircon Ce/Nd and (Ce/Nd)/Y ratios and high Dy/Yb ratios in the W granites. Biotite and apatite from the W granites generally have lower Cl contents than those from most Cu granitoids. Moreover, SO3 content in apatite from the W granites is also lower than that from the Cu granitoids. These data agree with the genetic environment suggested by previously published isotopic data. Bulk-rock Sr-Nd and zircon Hf isotopes indicate that the Cu granitoids were mainly sourced from juvenile lower crust. In contrast, the source of W granites was contaminated with the old Lhasa terrane basement. Our results highlight the role of magma oxygen fugacity and volatile components in controlling metal variations in high-Sr/Y granitoids. Combinations of magmatic zircon ΔFMQ and Ce/Nd, (Ce/Nd)/Y and Dy/Yb ratios, and apatite and biotite SO3 and Cl contents, can be used to discriminate W granites from Cu granitoids in the Gangdese metallogenic region, and hence granitoids potentially hosting W versus Cu ore deposits.
effect of temperature on compressive strength of concrete with the addition of kaolin as a substitute some fine aggregate
Authors: Rasiwan Rasiwan , Sasongko Hartanto Wahyu , Abduh Muhammad , Rabihati Etty , Setiawan Randy , Supardi Iwan 
Published: June 2024

This research aims to; (1) Determine the feasibility of using kaolin from Pawangi Village, Capkala District, Bengkayang Regency, West Kalimantan Province when used as a substitute for some fine aggregate (sand). (2) To find out the description of compressive strength after burning and the model of the relationship between temperature and compressive strength of concrete with mixture, kaolin is used as a substitute for some fine aggregate (sand). (3) Determine the most optimal composition of kaolin mixture against the compressive strength of normal concrete and also due to the influence of temperature. The type of research used in this study is a qualitative experiment on the structure of concrete materials using kaolin as a substitute for fine aggregate. The concrete that is planned is of K-250 quality, in line with the quality standards of concrete used in residential structures (1 to 2 floors). The kaolin mixture used is a percentage of 0%, 25%, and 50% of the weight of sand according to the job mix formula for the quality of K-250 concrete. After 28 days the resulting concrete sample is fired in an oven (kiln).
Short-Term Effects of an eHealth Care Experiential Learning Program Among Patients With Type 2 Diabetes: Randomized Controlled Trial
Authors: Cheng Yu-Shan , Lin Cheng-Pei , Chen Lu-Yen Anny , Hwang Wei-Ren , Lin Yi-Chun , Chen Yu-Chi 
Published: June 2024

Background
Type 2 diabetes is a chronic disease with a significant medical burden. eHealth care integrates medicine and technology to enhance the outcomes of such patients; however, adequate eHealth literacy (eHL) is necessary for that to happen. Fostering eHL is crucial for patients with diabetes to engage with eHealth care and receive quality care and timely support. Experiential learning theory can enhance patients’ eHL and skills to use eHealth care technology in their daily care.

Objective
This study explored the effectiveness of an eHealth care experiential learning program in improving eHL, patient health engagement, and eHealth care use status among patients with type 2 diabetes in 3 months.

Methods
In this randomized controlled trial, patients under case management services from various clinics in Taiwan were randomly assigned to either the intervention group receiving the 6-session eHealth care experiential learning program or the control group receiving the usual care. Data were collected using structured questionnaires at 3 time points: pretest, postintervention, and 3 months after the intervention. Descriptive data were presented using frequency distribution, percentage, mean, and SD. The outcomes were analyzed using a generalized estimating equation method by intention-to-treat analysis.

Results
A total of 92 participants (46 in each group) were recruited in this study. Of these, 86 completed the course and follow-up evaluations with a mean age of 62.38 (SD 12.91) years. After completing the intervention, the intervention group had significantly higher posttest scores in eHL (β=19.94, SE 3.52; P<.001), patient health engagement (β=.28, SE 0.13; P=.04), and eHealth use (β=3.96, SE 0.42; P<.001) than the control group. Furthermore, the intervention group maintained these significant improvements in eHL (β=18.19, SE 3.82; P<.001) and eHealth use (β=3.87, SE 0.49; P<.001) after 3 months.

Conclusions
Participating in the eHealth care experiential learning program resulted in significant improvements in eHL, patient health engagement, and eHealth use among patients with type 2 diabetes. Our interventional program can inform future clinical practice and policies to strengthen self-management skills and facilitate the use of health technology in caring for patients with chronic diseases.

Trial Registration
ClinicalTrials.gov NCT05180604; https://clinicaltrials.gov/ct2/show/NCT05180604
Parents’ Perceptions of Their Parenting Journeys and a Mobile App Intervention (Parentbot—A Digital Healthcare Assistant): Qualitative Process Evaluation
Authors: Chua Joelle Yan Xin , Choolani Mahesh , Chee Cornelia Yin Ing , Yi Huso , Chan Yiong Huak , Lalor Joan Gabrielle , Chong Yap Seng , Shorey Shefaly 
Published: June 2024

Background
Parents experience many challenges during the perinatal period. Mobile app–based interventions and chatbots show promise in delivering health care support for parents during the perinatal period.

Objective
This descriptive qualitative process evaluation study aims to explore the perinatal experiences of parents in Singapore, as well as examine the user experiences of the mobile app–based intervention with an in-built chatbot titled Parentbot—a Digital Healthcare Assistant (PDA).

Methods
A total of 20 heterosexual English-speaking parents were recruited via purposive sampling from a single tertiary hospital in Singapore. The parents (control group: 10/20, 50%; intervention group: 10/20, 50%) were also part of an ongoing randomized trial between November 2022 and August 2023 that aimed to evaluate the effectiveness of the PDA in improving parenting outcomes. Semistructured one-to-one interviews were conducted via Zoom from February to June 2023. All interviews were conducted in English, audio recorded, and transcribed verbatim. Data analysis was guided by the thematic analysis framework. The COREQ (Consolidated Criteria for Reporting Qualitative Research) checklist was used to guide the reporting of data.

Results
Three themes with 10 subthemes describing parents’ perceptions of their parenting journeys and their experiences with the PDA were identified. The main themes were (1) new babies, new troubles, and new wonders; (2) support system for the parents; and (3) reshaping perinatal support for future parents.

Conclusions
Overall, the PDA provided parents with informational, socioemotional, and psychological support and could be used to supplement the perinatal care provided for future parents. To optimize users’ experience with the PDA, the intervention could be equipped with a more sophisticated chatbot, equipped with more gamification features, and programmed to deliver personalized care to parents. Researchers and health care providers could also strive to promote more peer-to-peer interactions among users. The provision of continuous, holistic, and family-centered care by health care professionals could also be emphasized. Moreover, policy changes regarding maternity and paternity leaves, availability of infant care centers, and flexible work arrangements could be further explored to promote healthy work-family balance for parents.
Bioinformatic insights into the xenobiotic degradation potential gene clusters of fish-associated novel Bacillus velezensis SNR14-4
Authors: Madhavan Sethu , Dinesh Niveditha , Muhammed Rashid N.R. , John Deepa , Hariharan Sini , Nevin Kottayath G. 
Published: June 2024

Bacillus velezensis is a member of the genus Bacillus, which harbours useful, novel, and efficient secondary metabolites that can be utilized in the disruption of xenobiotics. Although a few strains of B. velezensis and related species are reported every year as having xenobiotic metabolism potential, several novel gene clusters are still unexplored, which could be more potent than those already discovered. The current B. velezensis strain was isolated from gills of healthy Oreochromis niloticus and the novelty of the strain was assessed through whole genome sequence analysis. Prokka, DFAST, BAKTA, and RASTtk were computational tools utilized for genome elucidation following the genome assembly. Protein and protein pathway prediction was achieved through the PATRIC database. Additionally, the resistance genes against microorganisms were examined through CARD (via Proksee), bacteriocin, and RiPPs using BAGEL4, and forecast of virulence factors using VFDB in PATRIC. The analysis led to identification of indicator genes for xenobiotic breakdown. The results were compared to pre-existing strains of B. velezensis and it was compelling to conclude the high biotechnological potential and the candidacy of the strain in xenobiotic degradation.
Unravelling the role of Set2 protein domains in H3K36 methylation in Saccharomyces cerevisiae
Authors: Nazir Saima , Yasien Urseela , Ashraf Aaqib , Ganie Showkat Ahmad , Bhat Abdul Wajid 
Published: June 2024

Histone methylation plays a crucial role in gene expression and chromatin structure regulation. In Saccharomyces cerevisiae, the Set2 protein is responsible for the methylation of histone H3 at lysine 36 (H3K36), which is associated with transcriptional regulation, RNA processing, and DNA repair. This study investigates the specific functions of individual domains within the yeast Set2 protein by utilizing PCR-based domain deletions and subsequent western blot analysis to assess their impact on H3K36 methylation status. The results demonstrate that the SET domain alone is sufficient for H3K36 dimethylation, while optimal trimethylation necessitates the presence of additional domains, including the central autoinhibitory domain. Furthermore, the SRI domain is found to be essential for both di- and trimethylation when considering the full-length Set2 protein. These findings underscore the critical role of Set2 domains in modulating Set2 enzymatic activity.
A photon model of particle: the de facto integration of Dirac equation and Relativity
Authors: Wang ZhaoXin 
Published: June 2024

The spin nature of particle wave is unaddressed. Based on
a naïve belief that the nature of physics/force cannot change, here I
propose this novel photon model of particle
that LITERALLY integrates
implications of Dirac’s assertions and Relativity that have no alternative explanations.
That’s, a particle with charge is a photon (E =
mc, Relativity) with
LITERALLY 12 spin (Dirac equation),
which has solely electricity (magnetism is just electricity due to
speed; Relativity) that perpendiculars to its velocity (the only
assumption), c→ (Dirac’s assertion). This model
provides physical mechanisms of mass,charge and
rotating magnetism, neutrino (therefore literally weak
force), chirality,strong force, the de Broglie
wave, Quarks in principle, Bell’s inequality, etc.; and by
extension, gravity as the equivalence of General
Relativity. This model is equivalent to Relativity
mathematically, but not identical physically, therefore
endorsing all its implications and equations with minor
modifications. Consequently, as electricity due to speed,
rotating magnetism does not follow the Lorentz transformation,
and the Coulomb’s law and Maxwell’s equations only reflect parts of this
model. Possible supporting evidence is presented. Although may be too
simple to be true, this model can literally unite the
electricity and magnetism, as well as the
four fundamental forces in principle. Otherwise, the
possibility of this University is 3-dimensional can be total dismissed.
.

Keywords
Grand United Theory; Dirac equation; Relativity; Bell’s inquality;
charge; particle model; magnetism; weak force; strong force; gravity
Effects of equivalence ratio and channel length on the physics of heat and mass transfer processes in protruded millisecond reactors
Authors: Chen Junjie 
Published: June 2024

Protrusions can be used to improve the transport processes involved, but
the causes of the phenomena are still incompletely understood.
Computational fluid dynamics analyses are performed under different sets
of circumstances to gain insights into the physics of heat and mass
transfer processes in a protruded millisecond microchannel reactor,
wherein a steam reforming reaction is proceeding and protrusions are
used to improve the transport processes involved. Recommendations are
made on how to optimize design for better reactor performance.
Particular emphasis is placed on delineating the role of methanol-air
equivalence ratio and channel length in reactor performance. The results
indicate that the equivalence ratio and channel length must be adjusted
as needed to minimize pressure drops and maximize production of
hydrogen. Necessary adjustments to the equivalence ratio of methanol to
air can be made to control the maximum reactor temperature within
certain needed limits. The short-channel design may be preferred over
the long-channel design in order to simultaneously achieve low pressure
drops and sufficiently high conversions in the reactor. Expectable
compromises have to be made between hydrogen productivity and pressure
drop.
Keywords: Flow configurations; Heat fluxes; Fuel cells;
Equivalence ratios; Channel lengths; Heat exchange
The Absorption and Main Effects of EU Funding for Investments in Transport in Poland Under Operational Programmes 2007–2013(2015)
Authors: Rakowska Joanna 
Published: June 2024

The aim of the paper is to define the main effects, value and share of EU funding allocated in Poland under Operational Programmes 2007–2013(2015) in the transport infrastructure projects total, by different categories of projects as well as by individual operational programmes. Under all Operational Programmes 2007–2013 beneficiaries in Poland signed 2774 contracts for transportation infrastructure projects of a total value of 167.2 billion PLN, of which 98.5 billion PLN had come from EU structural funds, as of 31 December, 2014. Although 2774 transportation infrastructure projects made up only 2.7% of all contracts, they enabled the absorption of nearly 35% of total EU funding allocated to Poland in 2007–2013 and made up a significant share of 33% of the total value of all projects carried out in Poland under the 2007–2013 OPs.
An interdisciplinary approach to marketing
Authors: Szwacka-Mokrzycka Joanna 
Published: June 2024

This article looks at the issue of the interdisciplinary approach to marketing. The purpose of this study is to present the contribution of various sciences to the creation and emergence of marketing as an independent discipline of science. The subsequent parts of this study are devoted to the relationship between marketing and related sciences. In addition, this paper illustrates a pioneering approach to marketing and the directions of its evolution, including the emergence of the extended concept of marketing.
1444-P: Trends and Disparities in Continuous Glucose Monitoring Use in U.S. Youth and Adults with Type 1 Diabetes—2008–2022
Authors: FANG MICHAEL , XU YUNWEN , CORESH JOSEF , BALLEW SHOSHANA , SELVIN ELIZABETH , SHIN JUNG-IM 
Published: June 2024

Introduction: Continuous glucose monitoring (CGM) technology has revolutionized the management of type 1 diabetes. However, trends and disparities in CGM use remain poorly characterized in general type 1 diabetes population.
Methods: We conducted a serial cross-sectional analysis of youth and adults with type 1 diabetes using de-identified electronic health record data from the Optum Labs Data Warehouse. Type 1 diabetes status was determined using a validated algorithm. Use of CGM was ascertained by National Drug Codes from prescription order data. We examined trends in CGM use from 2008-2010 to 2020-2022, overall and by age, sex, race/ethnicity, and insurance type.
Results: We included 128,821 individuals with type 1 diabetes (17% under age 18 years; 48% female; 78% non-Hispanic White). From 2008-2010 to 2020-2022, the use of CGM increased from &lt;1% to 47% in youth and 2% to 37% in adults with type 1 diabetes (Fig A1 and A2). Uptake of CGM was similar across age and sex, but substantially lower in racial/ethnic minority patients and those with Medicaid insurance (Fig B1-E2).
Conclusion: Over the past 15 years, the use of CGM has grown significantly among persons with type 1 diabetes in the US. However, racial/ethnic and socioeconomic disparities have widened in both youth and adults. There is an urgent need to expand access to care and diabetes technology to improve care in this population.

Disclosure
M. Fang: None. Y. Xu: None. J. Coresh: Consultant; SomaLogic, Healthy.io. S. Ballew: None. E. Selvin: None. J. Shin: None.

Funding
K01 DK138273-01
17-OR: ADA Presidents' Select Abstract: Oral Bisphenol A Administration Decreased Peripheral Insulin Sensitivity in Healthy Adults
Authors: SEAL ADAM , MALIN STEVEN K. , SCHAFFNER ANDREW , HUBBARD MICHAEL R. , KEADLE SARAH K. , BRUNNER-GAYDOS HANNAH , ORTIZ ALIA A. , NAKAMURA JANE E. , MCMAHON CLARA , BARNETT RACHEL , KELLEHER ANITA H. , BENNION KELLY A. , PHELAN SUZANNE , HAGOBIAN TODD 
Published: June 2024

Introduction: Bisphenol A (BPA) is a synthetic chemical widely used in consumer goods and is linked to Type 2 diabetes progression in observational studies. No experimental studies have examined whether BPA promotes reductions in peripheral insulin sensitivity. Objective: To determine the effects of oral BPA administration on peripheral insulin sensitivity.
Methods: Forty non-habitually active, healthy adults (22 F, 18 M; 21.3 ± 2.5 yr; 22.1 ± 2.3 kg/m2; 85% Non-Hispanic White) completed a 2-day baseline energy balance diet low in bisphenols during which urine, blood, and peripheral insulin sensitivity (i.e., glucose infusion rate/steady-state plasma insulin) via 120 min euglycemic hyperinsulinemic clamp technique (40 mU/m2/min; 90 mg/dL) were assessed. Participants were then randomly assigned, in a double-blinded fashion, to a 4-day energy balance diet plus oral BPA administration at 50 μg/kg body weight (BPA-50) or 4-day energy balance diet plus oral placebo (PL) administration. Outcomes were reassessed using a repeated measures ANOVA adjusting for baseline sex, BMI, physical activity, and ethnicity.
Results: From baseline to 4-days, body weight was not significantly (P&gt;0.05) different between PL (mean ± SEM; 66.7 ± 2.5, 66.2 ± 2.5 kg) and BPA-50 (66.7 ± 2.5, 66.7± 2.5 kg). From baseline to 4-days, fasting blood glucose was not significantly (P &gt; 0.05) different between PL (95 ± 2, 88 ± 2 mg/dL) and BPA-50 (92 ± 2, 92 ± 2 mg/dL). Compared to PL urine BPA was significantly higher (P&lt;0.05) following BPA-50. From baseline to 4-days, peripheral insulin sensitivity significantly (P=0.01) decreased in BPA-50 (0.11 ± 0.01, 0.10 ± 0.01 mg/kg/min/uU/ml) and remained stable in PL (0.09 ± 0.01, 0.10 ± 0.01 mg/kg/min/uU/ml).
Conclusion: BPA administration decreased peripheral insulin sensitivity after four days. These data provide the first experimental evidence that BPA administration may increase Type 2 diabetes risk. Supported by American Diabetes Association grant #1-19-ICTS-044.

Disclosure
A. Seal: None. S.K. Malin: None. A. Schaffner: None. M.R. Hubbard: None. S.K. Keadle: None. H. Brunner-Gaydos: None. A.A. Ortiz: None. J.E. Nakamura: None. C. McMahon: None. R. Barnett: None. A.H. Kelleher: None. K.A. Bennion: None. S. Phelan: Research Support; Weight Watchers International. T. Hagobian: None.

Funding
American Diabetes Association (1-19-ICTS-044)