bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bioacoustic description of the alarm call of the stump-tailed porcupine (Coendou rufescens)
Authors: Batallas Diego , Brito Jorge 
Published: July 2024

La comunicación acústica en los roedores es compleja y variada. Sin embargo, los conocimientos sobre la acústica de los roedores en ambientes naturales son limitados y escasos. La mayor parte de estudios acústicos, han sido realizados en condiciones de laboratorio. Hemos grabado por primera vez los cantos del puercoespín de cola corta en un entorno natural. Las grabaciones fueron obtenidas en Guabisai, Parque Nacional Sangay, Ecuador. Grabamos de manera oportunista el canto de alarma de una hembra adulta de Coendou rufescens en un encuentro directo durante su proceso de captura. Se analizaron 37 notas de 21 cantos, clasificando las notas en 4 tipos diferentes basados en características espectrales, temporales y de intensidad (i.e., frecuencias fundamentales, dominantes y armónicas). El canto de alarma de C. rufescens consta de hasta 4 notas. Los sonidos varían y van desde chirridos a sonidos nasales, con una frecuencia dominante que oscila entre 0.34 y 2.50 kHz. Las notas tienen características espectrales y temporales diferentes. Por lo tanto, el canto de alarma de C. rufescens presenta un repertorio con diferentes tipos de notas. Nuestras observaciones preliminares sugieren que sus diferentes tipos de sonido están probablemente asociados a comportamientos antipredadores, por lo que consideramos estos sonidos como cantos de alarma. Este reporte proporciona información de referencia para futuros estudios bioacústicos en esta especie.
Use of telehealth to improve health outcomes for those with motor neuron disease: a mixed-methods systematic literature review
Authors: Costa Ana Rita Gameiro , Malaspina Andrea , Knox Liam , Sheringham Jessica 
Published: July 2024

Background: Multidisciplinary care has been shown to improve the quality of life and extend survival for patients with motor neuron disease (pwMND). Several barriers to accessing care have been previously identified. Telehealth can potentially mitigate this by providing remote specialist healthcare services. Aims: Systematically review the existing literature to assess if and how telehealth can reduce barriers to access multidisciplinary team (MDT) care and improve health outcomes for pwMND. Methods: A mixed-methods, systematic literature review was conducted to identify evaluations of telehealth interventions. Telehealth interventions were evaluated using the Evaluating Digital Health Interventions Framework. Findings: A total of 293 articles were identified from the search and 16 studies met the criteria for inclusion in the review. Modes of telehealth delivery included video conferencing, app-based self-assessment and remote monitoring. Healthcare outcomes identified as being approved included accessibility, improved communication, timely interventions and satisfaction. Conclusion: Telehealth has the potential to mitigate barriers to access to specialist MDT and improve healthcare outcomes for pwMND. Patients’ preferences should always be considered in decision-making when considering available options.
Influence of simulation fidelity on student learning in a prehospital setting
Authors: Graham Sean , Sealey Amy 
Published: July 2024

Background: Simulation creates a low-risk environment for patients and participants and allows experiential learning. Aims: This literature review aims to determine whether the fidelity of simulation (the extent to which it reflects reality) influences learning. Methods: A search of databases for research within the past 10 years was carried out, and 22 articles were reviewed. Findings: Three themes emerged: models of simulation that address fidelity; the role of the facilitator; and need for sound educational theory to underpin simulation. Conclusion: Although evidence is sparse, simulation offers benefits to paramedic students and paramedics. It is particularly useful regarding rarely occurring events, especially those with significant consequences. While a high-fidelity prehospital scenario can be difficult to achieve, simulation can be educationally effective. Effectiveness depends on: the simulation model; whether fidelity is appropriate to the scenario and recognises participants' sensory capacity; having a dedicated facilitator; and being based on a sound educational strategy. This combination allows learning outcomes to be met and the gap between theory and practice to be bridged.
Performance Investigation of Precision Seeding of a Multi-Rows Pneumatic Cylindrical System for Wheat
Authors: Abdallah Anas Dafaallah , Liao Qingxi , Lei Wang , Ibrahim Elebaid 
Published: July 2024

Highlights

By using the seed barrier mechanism, the cylindrical metering device was able to locate seeds through the six rows successfully and precisely.

Each row's seed quality index was above 90%, with minor variations within and between rows.

An oblong shape was used on the metering cylinder to be comfortable for wheat seeds.

During field trials, the coefficient of variation for seed distribution was 3.43%.

Abstract. The main objective of this study was to investigate the performance of a pneumatic cylindrical system with six rows for wheat precision seeding. The cylinder was coupled with a plastic barrier to prevent seeds from creeping over the cylinder and permit precise seed distribution. Results disclosed that the optimum negative pressures associated with 15, 20, and 25 rpm were 2.4, 2.7, and 3.00 kPa, respectively. 15 rpm resulted in a quality index of 90.96%, 90.88%, 90.86%, 90.76%, 90.56%, and 90.38%, while 20 rpm attained 91.30%, 91.02%, 91.06%, 90.86%, 91.32%, and 90.82%, and 25 rpm achieved 90.92%, 90.72%, 90.84%, 90.86%, 90.62%, and 90.80% for rows 1, 2, 3, 4, 5, and 6, respectively. The highest seed feed index (91.32%) was obtained by row 4 at a speed of 20 rpm, while the lowest value (90.56%) was achieved by row 6 at 15 rpm. Both the separate rows' stability and the rows' consistent CV resulted in a CV range of less than 1.5 percentage points, with some tendency of 25 rpm to be more consistent than 15 and 20 rpm. Results concluded that the multi-row cylinder and the plastic barrier technique could satisfy the required seed precision without damage and be employed for further investigations. Keywords: Multi-row cylindrical, Pneumatic system, Seed precision, Wheat.
The value of D-dimer and platelet-lymphocyte ratio combined with CT signs for predicting intestinal ischemia in patients with bowel obstruction
Authors: Zhou Yuan , Zhao Haijian , Liu Bing , Qian Jiangfeng , Chen Ning , Wang Yan , Tu Daoyuan , Chen Xiaoyu , Li Heng , Zhang Xiaoyu 
Published: July 2024

Objective
To investigate the diagnostic value of D-dimer, platelet-lymphocyte rate (PLR) and CT signs for intestinal ischemia in patients with bowel obstruction.

Methods
We retrospectively analyzed the clinical and imaging data of 105 patients diagnosed with bowel obstruction, and performed univariate and multivariate analyses to determine the independent risk factors for intestinal ischemia in patients with bowel obstruction. Moreover, the receiver operating characteristic curve (ROC) was plotted to examine the diagnostic value of D-dimer, PLR and CT signs in patients with bowel obstruction. Besides, Kappa tests were used to assess inter-observer agreement.

Results
We included 56 men (53%) and 49 women (47%) with mean age of 66.05 ± 16 years. Univariate and multivariate analyses showed that D-dimer, PLR and two significant CT signs (i.e., increased unenhanced bowel-wall attenuation and mesenteric haziness) were independent risk factors for intestinal ischemia in patients with bowel obstruction. ROC analysis showed that the combined use of D-dimer, PLR and the said two CT signs had better performance than single indicators in predicting intestinal ischemia in patients with bowel obstruction. The area under the curve (AUC) of the joint model III was 0.925 [95%CI: 0.876–0.975], with a sensitivity of 79.2% [95CI%: 67.2–91.1] and a specificity of 91.2% [95%CI: 83.7–98.9].

Conclusion
The combined use of D-dimer, PLR and CT signs has high diagnostic value for intestinal ischemia in patients with bowel obstruction and will prompt surgical exploration to evaluate intestinal blood flow.
Digital divide and the health of internal elderly migrants in China: A cross-sectional study
Authors: Liu Yuping , Wang Ruixi , Guo Junjun 
Published: July 2024

Introduction
Population aging and internal migration have become the "norm" in China’s population development. Influenced by both "mobility" and "old age," internal elderly migrants (IEMs) face the second-level digital divide problems primarily characterized by digital technology usage gap, which can lead to adverse health outcomes. Understanding the impact of the digital divide on the health of IEMs can provide effective solutions to meet the health needs of this particular group and facilitate their better integration into a digital society. Therefore, this study aims at exploring the impact of the digital divide on the health of IEMs, and identifying priorities and recommendations for improving IEMs’ health by mitigating the adverse effects of the digital divide.

Methods
In the 2017 China Migrant Dynamic Survey (CMDS), a cross‑sectional sample of 169,989 internal migrants in 32 provincial units across China was recruited by stratified probability proportionate to size sampling (PPS). We focus on IEMs and require interviewees to be 60 years and older. Therefore, we excluded samples younger than 60 years of age and retained only 6,478 valid samples. Subsequently, STATA 17.0 software was applied to analyze the data. Based on the research objective and Grossman’s model of health demand, we empirically tested using ordered logit regression.

Results
The digital divide does affect the health of IEMs in general and its negative effects tend to decrease significantly with age. In terms of groups, its impact showed noticeable group differences in residence arrangement, public health services and medical insurance coverage. Compared with IEMs who live alone or only live with their spouse, have not received public health service, and have not been covered by any medical insurance, the digital divide imposes a smaller adverse impact on the health of IEMs who live with at least one offspring, have received public health service, and have covered in at least one medical insurance. In terms of potential mechanisms, among the effects of digital divide on the health of IEMs, the mediating effect of urban integration is not significant, the social interaction has only a partial mediating effect, and the medical convenience has a significant mediating effect.

Conclusion
Our findings confirm the existence of the third-level digital divide among IEMs concerning health, that is, the digital divide has adverse health outcomes for this group, and underscore the important implications of reducing the negative impact of the digital divide in improving the health status of IEMs.
Ultrasound Characteristics Can Predict Response to Biologics Therapy in Stricturing Crohn's Disease
Authors: Ma Li , He Yudi , Li Wenbo , Xiao Mengsu , Zhou Mengyuan , Qin Jing , Yang Hong , Liu Wei , Zhu Qingli 
Published: July 2024

INTRODUCTION:
Stricture is a common complication in Crohn's disease (CD). Accurate identification of strictures that poorly respond to biologic therapy is essential for making optimal therapeutic decisions. The aim of this study was to determine the association between ultrasound characteristics of strictures and their therapeutic outcomes.

METHODS:
Consecutive CD patients with symptomatic strictures scheduled for biologic therapy were retrospectively recruited at a tertiary hospital. Baseline intestinal ultrasound was conducted to assess stricture characteristics, including bowel wall thickness, length, stratification, vascularity, and creeping fat wrapping angle. Patients were followed up for a minimum of 1 year, during which long-term outcomes including surgery, steroid-free clinical remission, and mucosal healing were recorded. Statistical analyses were performed.

RESULTS:
A total of 43 patients were enrolled. Strictures were located in the ileocecal region (39.5%), colon (37.2%), anastomosis (20.9%), and small intestine (2.3%). The median follow-up time was 17 months (interquartile range 7–25), with 27 patients (62.8%) undergoing surgery. On multivariant analysis, creeping fat wrapping angle > 180° (odds ratio: 6.2, 95% confidence interval [CI]: 1.1–41.1) and a high Limberg score (odds ratio: 2.3, 95% CI: 1.4–6.0) were independent predictors of surgery, with an area under the curve of 0.771 (95% CI: 0.602–0.940), accuracy of 83.7%, sensitivity of 96.3%, and specificity of 62.5%. On Cox survival analysis, creeping fat >180° was significantly associated with surgery (hazard ratio, 5.2; 95% CI: 1.2–21.8; P = 0.03). In addition, creeping fat was significantly associated with steroid-free clinical remission (P = 0.015) and mucosal healing (P = 0.06).

DISCUSSION:
Intestinal ultrasound characteristics can predict outcomes in patients with stricturing CD who undertook biologic therapy.
An experimental study of some mechanical properties and absorption for polymer-modified cement mortar modified with superplasticizer
Authors: Sh. Humadi Hanaa , Ali Zainab S. , Jabal Qusay A. , Jawad Alaa H. 
Published: July 2024

Abstract
Polymer-modified concrete and mortars are widely used with different purposes in precast concrete and prestressed concrete structural elements, bridge decks, buildings, and repair requirements because of their significant behavior under different conditions, such as durability against freezing and thawing, ability to absorb impact loads and good mechanical properties compared to ordinary concretes. This study aims to improve some mechanical properties of cement mortar by using styrene–butadiene rubber (SBR) latex, a superplasticizer, and also decreasing the absorption level to lower values by using these two admixtures. The study shows that using 10% SBR by weight of cement increases the compressive strength from 28.6 to 30.8 MPa and decreases the absorption from 2.3 to 1.7% which gives durability for cement mortar. This study also shows the development in strength achieved by using SBR superplasticizer simultaneously, and absorption decreases to only 0.76% for 10% SBR mixes. In comparison, it was 1.75% for mixes with SBR only.
Optimizing heat transport in a permeable cavity with an isothermal solid block: Influence of nanoparticles volume fraction and wall velocity ratio
Authors: Rajarathinam Muthu , Khan Muhammad Ijaz , Abdullaeva Barno Sayfutdinovna , Abbas Tehseen , Awwad Fuad A. , Ismail Emad A. A. 
Published: July 2024

Abstract
This study examines the influence of wall velocity ratio on mixed convective heat transport in a permeable cavity containing an isothermal solid block at its center. The analysis considers the characteristics of various flow variables, i.e., Darcy number, wall velocity ratio, Richardson number, and volume fraction of suspended nanoparticles, on heat transport and material flow characteristics. The principal equations are solved implementing the semi-implicit method for pressure linked equations algorithm, and the outcomes are compared with existing literature. The study shows that rising estimations of Darcy number, velocity ratio, Richardson number, and nanoparticles volume fraction lead to improved heat transfer rates. For example, at high Richardson number (100) and solid volume fraction (0.05), increasing the velocity ratio from 0.5 to 1.5 results in a 6% (5%) upsurge in heat transport rate. Conversely, at smaller Richardson number (0.01), the heat transport rate upsurges by 29% (28%). Similarly, at high Darcy numbers and low wall velocity ratios, a 3% (4%) escalate in heat transport rate is observed with an increase in nanoparticles concentration from 0 to 0.05, while a 9% (8%) increase in thermal performance is achieved at low Darcy numbers. The study emphasizes the importance of optimizing the combination of nanoparticles volume fraction, Darcy number, velocity ratio, and Richardson number to maximize thermal performance in the porous cavity.
Smart charging process development based on ant colony optimization machine learning for controlling lead-acid battery charging capacity
Authors: Muslimin Selamat , Nawawi Zainuddin , Suprapto Bhakti Yudho , Dewi Tresna 
Published: July 2024

The Indonesian government has targeted 2.1 million two-wheeled electric vehicles and 2,200 four-wheeled electric vehicles (EV) by 2025. This is hampered by limited electricity supply and EV charging, which takes long time. Multi device interleaved DC-DC bidirectional converter has been applied and assessed as the most suitable method for battery EV and plug-in hybrid EV because it produces high power >10 kW. For power below 10 kW, it is recommended to use a sinusoidal, Z-Source, and boost amplifier type converter. The smart charging (SC) system will be applied to electric vehicles, which only require a minimum charging power of around 169 W for four lead acid batteries. This paper focuses on an SC system that is capable of charging the battery quickly while still paying attention to the state of health (SoH) of the battery. The SC developed uses a DC-DC boost converter to increase the voltage produced by the switch mode power supply (SMPS). Estimated charging time is less than 30 minutes and still pay attention to the battery SoH. SC will also use pulse width modulation (PWM) as a duty power cycle regulator. This research applies a multi-layer perceptron (MLP) classifier to a neural network (NN). The results of the research show that smart charging can charge up to 600 W with an estimated charging time of around 11 minutes. The charging condition is above 60 % and the power duty cycle setting is 100 %. The power estimation results processed using the ant colony optimization (ACO) based neural network method show a root mean square deviation value of 0.010013430 for charging four lead acid batteries. These results are useful to help solve the problem of capacity requirements and battery charging speed for EVs, with good SoH
Identifying enhancement of double slope solar still performance by adding water cooling to walls
Authors: Ismail Nova Risdiyanto , Suwandono Purbo , Hermawan Dadang , Anggraeni Frida Dwi 
Published: July 2024

The object of this research is a double-slope solar still with the addition of water cooling on the wall (DSSS.WCW). The issue with solar stills is that the temperature of the cover glass is quite high, which consequently reduces the rate of evaporation. Methods to reduce the cover glass temperature involve water cooling, by flowing water and spraying it onto the cover glass. Both of these methods have been shown to reduce the temperature of the cover glass, but they still require additional energy and can decrease the solar radiation energy received by the absorber plate. This research proposes using a water cooling method on the wall that does not require additional energy and can prevent a reduction in the solar radiation energy received by the absorber plate. Experimental and theoretical research was conducted to study the effect of using DSSS.WCW. The results showed a 13.48 % reduction in the cover glass temperature, consequently increasing the temperature difference between the fins and the cover glass by 9.82 °C. The increase in temperature difference resulted in a 13.82 % increase in freshwater productivity theoretically by 2.80 kg/hour and a 13.10 % increase experimentally for the DSSS.WCW by 2.58 kg/hour. In addition, there was a theoretical increase in energy efficiency of 22.29 % and an experimental increase of 22.82 %, along with an increase in exergy efficiency of 15.71 %. The implementation of water cooling on the wall has been shown to enhance the efficiency of the double-slope solar still. In addition, the water cooling method on the wall does not reduce the solar radiation energy that can be received by the absorber plate and does not require additional energy. The results of this research can be applied in remote islands in Indonesia, particularly during the dry season
Determination of the influence of hemp oil-based emulsion systems composition on the oxidation products content during storage
Authors: Kunitsia Ekaterina , Popov Mykola , Gontar Tatiana , Stankevych Serhii , Zabrodina Inna , Stepankova Galyna , Zolotukhina Olena , Filenko Olesia , Novozhylova Tetiana , Nechyporenko Dmytro 
Published: July 2024

The object of the study is the content of antioxidants and the induction period of accelerated oxidation under simulated conditions of the lipid component of the emulsion system. The way to solve the problem of developing compositions of oxidation-stable emulsion systems based on nutritionally valuable oils, in particular hemp oil, by adding natural physiologically active antioxidants is considered. The research is relevant in the context of finding effective storage methods and extending the shelf life of products using hemp oil. The feature of the work lies in determining the influence of the composition of emulsion systems based on hemp oil on chemical oxidation during storage. The content of stabilizers in the hemp oil emulsion system (lecithin – 0.8...1.0 %; xanthan gum – 0.0...0.1 %) is proposed, which is effective in the inhibition of oxidative spoilage. The content range of β-carotene (0.012 %) in model emulsion systems is outlined, the addition of which increases the induction period of accelerated lipid oxidation by 1.58...2.08 times. The peroxide value of the lipid component of the emulsion system during storage at different temperature conditions (0...15 °C) and during different storage periods (15...60 days) was studied.
The results of the study confirm the significant influence of the composition of emulsion systems on the chemical oxidation of the lipid component, which is important for ensuring the quality and stability of food, pharmaceutical and cosmetic products. An applied aspect of the obtained scientific result is the possibility of modeling the composition of emulsion systems based on valuable hemp oil depending on the ratio of polyfunctional antioxidants of the oil component
Optimization of cross-sectional dimensions of castellated beams with hexagonal openings
Authors: Yurchenko Vitalina , Peleshko Ivan , Rusyn Pavlo 
Published: July 2024

The object of this study is a castellated beam, in which the web openings have the shape of a regular hexagon. The beam is examined to find optimal cross-sectional dimensions. The optimization task is stated as the task of finding the optimal profile numbers for top and bottom Tees of the beam and the optimal width of the web opening while ensuring the required load-carrying capacity of the beam. Minimization of the volume of the beam material was considered as an optimality criterion. The stated optimization problem was solved using the exhaustive search method. For an assortment of normal I-beams with parallel flanges, castellated beams were obtained with optimal cross-sectional dimensions depending on the steel grade, the beam span, and the magnitude of transverse uniformly distributed load. The optimization calculations proved that it was possible to increase the elastic section modulus of the beam to 35.48...50 % through the use of a castellated web. Castellated beams with optimal cross-sectional dimensions at the same load-carrying capacity are characterized by lower steel consumption (up to 23.19 %) compared to I-beams with a solid web. Analysis of the results has made it possible to devise recommendations for the optimal distribution of material in the cross-sections of such beams. The results are valid only for the assortment of normal I-beam profiles and only for the case of uniformly distributed load acting on the beam when the compressed beam flange is laterally restrained from the bending plane and the beam web has openings in the form of regular hexagons. It is under such conditions that the reported results can be implemented in practice both at the stage of selecting cross-sections of the studied class of structures, and at the development of effective assortments of castellated beams