bluuebunny/crossref_metadata_2025_split huggingface dataset:
Role of STREM-1 for early prediction of ventilator-associated pneumonia in pediatrics
Authors: Abdelgawad Tarek Ahmed , Anwar Maha Ahmad , Magdy Sondos Mohamed , El-Sayed Abd El-Maksoud Abd El-Maks Mohamed 
Published: February 2024

Abstract
Background
TREM-1 (setting off receptor imparted on myeloid cells-1) is an immunoreceptor. Neutrophils, monocytes/macrophages, and endothelial cells all express TREM-1. This work aimed to evaluate the role of STREM-1 in ventilator-associated pneumonia (VAP) early prediction in pediatrics.

Methods
This case–control research involved 56 children aged from 1 month to 5 years old, who were admitted to the pediatric intensive care unit (PICU) and needed mechanical ventilation (MV), from January 2023 to June 2023. Subjects were equally allocated into two groups: VAP group and non-VAP group.

Results
There was significantly elevated serum STREM-1 after 72 h than at admission between both groups. There was significantly elevated STREM-1, procalcitonin (PCT), and C-reactive protein (CRP) after 72 h in the VAP group compared to the non-VAP group. There was a positive correlation between PCT and CRP after 72 h. STREM-1 at admission and after 72 h area under the curve (AUC) was 0.641 (0.502 to 0.765), 1.000 (0.936 to 1.000), with best cut-off value for prediction of VAP was > 185, > 230 with sensitivity 53.6%, 100% and specificity 67.9%, 100%, respectively.

Conclusion
Serum sTREM-1 concentration is a reliable biomarker for predicting VAP in pediatrics received MV.
Successful surgical management of ventricular septal perforation following left ventricular free wall rupture due to acute myocardial infarction: a case report
Authors: Takehara Makoto , Tomotsuka Sanae , Tsumaru Shinichi , Shimamoto Takeshi 
Published: February 2024

Abstract
Background
The mechanical complications associated with acute myocardial infarction can be fatal. We report a life-saving case of a very elderly patient with consecutive mechanical complications of acute myocardial infarction.

Case presentation
A 90-year-old woman was transferred to our hospital for emergency care due to chest pain. She underwent emergency percutaneous coronary intervention of the left anterior descending branch and was diagnosed with acute myocardial infarction and intra-aortic balloon pumping insertion was performed. After returning to the intensive care unit, she experienced chest pain and went into shock. Echocardiography showed left ventricular free wall rupture, and percutaneous cardiopulmonary support was established. Emergency left ventriculoplasty was performed for the left ventricular free wall rupture. A ventricular septal perforation was observed on postoperative day 9, and its closure through right ventriculotomy was performed on postoperative day 10. On the 128th postoperative day, the patient was transferred to the hospital for rehabilitation.

Conclusions
A 90-year-old patient with consecutive left ventricular free wall rupture and ventricular septal perforation after acute myocardial infarction was successfully managed with two surgeries.
Mediastinal angiosarcoma mimicking constrictive pericarditis and aortic dissection: a case report
Authors: Ikemoto Koki , Numata Satoshi , Kobayashi Takuma , Yaku Hitoshi 
Published: February 2024

Abstract
Background
Angiosarcomas are soft-tissue sarcomas of endothelial cells that can arise from any site in the body. Primary mediastinal angiosarcoma is rare, with an extremely poor prognosis and currently no established treatment. Mediastinal angiosarcoma is often detected as a tumor mass in the heart, lung, aorta, or pulmonary artery. However, in cases where no tumor mass is found, a definitive diagnosis is difficult without tissue biopsy, as the condition shows various, non-specific clinical findings.

Case presentation
A 49-year-old man had an episode of syncope while walking. Cardiac catheterization and computed tomography suggested constrictive pericarditis, aortic dissection, and coronary artery disease. Scheduled total arch replacement and coronary artery bypass grafting could not be completed because intraoperative findings indicated the presence of a malignant tumor. Only pericardiectomy was performed. Hyaluronic acid concentration in the pleural fluid was high. The diagnosis of mediastinal angiosarcoma was confirmed postoperatively.

Conclusions
Mediastinal angiosarcoma might mimic multiple diseases within a single case. Hyaluronic acid concentration in the pleural fluid may be a useful indicator for mediastinal angiosarcoma diagnosis.
SIMULATION OF OSCILLATIONS OF THE CENTER OF MASS OF THE TRACTOR WITH TRACKED PROPULSION UNIT
Authors: Bykov Mikhail A. , Froltsov Nikita V. , Sidorov Maksim V. , Ponomarev Alexey I. 
Published: February 2024

To increase the traction force of tractors while simultaneously reducing the specific pressure on the soil, one of the effective ways is the use of a tracked propulsion unit. The article considers a variant of a tracked propulsion unit, installed separately on each drive axle of the tractor instead of wheels. The basis of the developed design of the tracked propulsion unit is the trackbed, which reduces the pressure on the ground and increases adhesion to the soil.
The results of simulation modeling of the rectilinear movement of a tractor with a tracked propulsion unit along grain stubble are presented. Realizations of oscillations of the front, sprung and rear, unsprung axles and the tractor frame were obtained. Oscillations in the ordinates of the reference surface were modeled as a random process with specified values corresponding to the reference surface of the grain stubble.
The simulation results showed acceptable oscillation values of the tractor frame with the proposed propulsion design. The proposed propulsion unit can be easily installed on a tractor instead of wheels and, if necessary, can also be easily dismantled.
Purpose. Investigation of oscillations of the center of mass of a tractor with a tracked propulsion unit using simulation modeling in the MATLAB Simulink environment.
Methodology. Methods of mathematical modeling and analysis were used in the article.
Results. The parameters showing the effectiveness of using a tracked propulsion unit instead of wheels on a tractor of traction class 6 are obtained.
Practical implications. The results obtained can be applied in the design of tractors to determine the acceptable parameters of the tracked propulsion unit.
‘Selling their souls?’ Nurses' understanding of addiction and recovery in acute hospital settings
Authors: Cafferkey Sadie Lavelle , Kelly Peter , Comiskey Catherine 
Published: February 2024

Background: Nursing disciplines do not currently have a shared understanding of addiction or recovery to address their contribution to their patients' needs. Recent developments of addiction nursing models, alongside an international move to standardise language, is slow to be reflected in nurses' perceptions in acute hospital settings. Aim: To explore nurses' understanding of addiction and recovery in acute general hospitals. Methods: A qualitative study with semi-structured open-ended questions informed by a prior literature review was undertaken with nurses working in an acute general hospital in Dublin, Ireland. Results: The identified themes were the knowledge of addiction, including physical and psychological needs, and the understanding of recovery, patient-centred services and the impact of the individual's environment. Conclusion: Standardising language for addiction and recovery and improving addiction education will give nurses a better understanding of the chronic nature of substance use and the importance of this in providing high-quality health care.
Numerical simulation of ultrawideband supercontinuum generation covering a 2–20  µm waveband in cascaded all-soft-glass fiber
Authors: Chu Yiqi , Xu Zhiyu , Li Chuchen , Jiang Chenyun , Hu Tianhao , Zhao Zhongbin , Zhou Yong , Ma Xiaohui , Fang Wentan , Zhang Wei , Chen Xiaolin , Huang Song , Yu Ronghua , Liao Meisong , Gao Weiqing 
Published: February 2024

We designed a cascaded all-soft-glass fiber
structure and simulate midinfrared 2–20 µm ultrawideband
supercontinuum (SC) generation numerically. The cascaded fiber
structure consists of a 1.5 m InF3 fiber, a 0.2 m chalcogenide
photonic crystal fiber, and a 0.2 m tellurium-based
chalcogenide photonic crystal fiber. Using a 2 µm pulse pumping
this cascaded structure, the generated SC covering the wavelengths
longer than 20 µm has been demonstrated theoretically. The
30 dB bandwidth reaches 20.87 µm from 1.44 to
22.31 µm. The effect of different pulse widths on SC generation
is considered. With the increase of peak power and the decrease of
pulse width, the energy of SC in the 15–20 µm waveband
increases gradually. The mechanism of SC broadening process has also
been analyzed. The SC generation of more than 20 µm in this
cascade structure is caused by the self-phase modulation, soliton
effects, four-wave mixing, and redshifted dispersive wave. This method
demonstrates the possibility of generating ultrawide bandwidth SCs up
to a 20 µm waveband by a commercial 2 µm pump source and
all-fiber structure.
High-uniformity and high-performance waveguide Ge photodetectors for the O and C bands
Authors: Li Xinyu , Xu Qiang , Song Ruogu , Wang Jinyu , Wang Shuxiao , Yue Wencheng , Wang Wei , Cai Yan , Yu Mingbin 
Published: February 2024

This paper presents the test
results for high-performance and high-uniformity waveguide
silicon-based germanium (Ge) photodetectors (PDs) for the O band and C band. Both wafer-scale and chip-scale
test results are provided. The
fabricated lateral p−i−n (LPIN) PDs exhibit a responsivity of
0.97 A/W at a bias of −2V, a bandwidth of 60 GHz, and a
no-return-to-zero (NRZ) eye diagram rate of 53.125 Gb/s.
Additionally, an average dark current of 22.4 nA was obtained
in the vertical p−i−n (VPIN) PDs at −2V by optimizing the doping process. The
device can reach an average responsivity of 0.9 A/W in the O band. The standard deviation in a
wafer with a dark current and responsivity is as low as 7.77 nA
and 0.03 A/W at −2V, respectively.
Healthcare professionals’ perception and COVID-19 vaccination attitudes in North-Western Ghana: A multi-center analysis
Authors: Balegha Augustine Ngmenemandel , Abdul-Aziz Suburu , Mornah Louis 
Published: February 2024

Introduction
The novel coronavirus SARS-CoV-2 causes Coronavirus Disease 2019 (COVID-19). Vaccination has been identified as one of the most effective strategies for combating COVID-19. Positive perceptions and attitudes of HCPs towards the COVID-19 vaccination are essential to vaccine uptake and adherence. However, the perceptions and attitudes of HCPs towards the COVID-19 vaccination remain largely unexplored. We therefore assessed healthcare professionals’ perceptions, attitudes, and predictors of their attitudes towards COVID-19 vaccination in the Wa Municipality, Upper West Region of Ghana.

Methods
In 2023, from January 16th to February 28th, we administered a multi-centre e-survey to a cross-section of 403 healthcare professionals in Wa Municipality of the Upper West Region, Ghana. We used STATA version 13 to analyze the data. Frequencies, percentages, and composite scores were used to assess perceptions and attitudes towards the COVID-19 vaccination. Hierarchical binary logistic regression modeling was then used to determine the predictors of attitudes towards the COVID-19 vaccination.

Results
The healthcare professionals had positive perceptions [6.00; IQR = 4.00–7.00] and attitudes [5.00; IQR = 4.00–5.00] towards theCOVID-19 vaccination. Positive perception [aOR = 1.81; 95% CI = 1.14–2.87, p < 0.05], female sex [aOR = 0.58; 95% CI = 0.35–0.97, p < 0.05], marital status [aOR = 1.94; 95% CI = 1.20–3.12; p < 0.01], having a bachelor’s degree or higher [aOR = 2.03; 95% CI = 1.01–4.12; p < 0.05], and working in the Wa North sub-Municipal area [aOR = 0.22; 95% CI = 0.05–0.96; p < 0.05] were statistically significantly associated with attitudes towards COVID-19 vaccination.

Conclusion
The healthcare professionals’ perceptions and attitudes towards the COVID-19 vaccination were positive but suboptimal. We recommend regular education on COVID-19 vaccine benefits, safety, and efficacy. Enabling the work environment and addressing vaccine availability and accessibility for healthcare professionals should also be prioritized. These measures should particularly focus on female, single healthcare professionals who possess below a bachelor’s degree and are working in the Wa North sub-municipal area.
"Habitar el borde del río"
Authors: Martinez Marina 
Published: February 2024

El artículo presenta avances de investigación de la tesis de doctorado en la que se busca analizar las formas del habitar de las mujeres de un barrio de la ciudad de Santa Fe, Argentina, denominado La Vuelta del Paraguayo (LVDP) que se caracteriza por ubicarse en el valle aluvial del Río Paraná y estar afectado por los ciclos del río y sufrir inundaciones.
Los aportes del trabajo se enmarcan dentro de los estudios de espacio y género y se vale de la perspectiva interseccional para indagar en las experiencias de vida de mujeres que habitan un barrio que convive con el río. Partimos de entender que la naturaleza o el medio ambiente constituye otro organizador social que genera desigualdades y que es necesario tenerlo en cuenta en los análisis de la interseccionalidad además del género y la clase.
Para abordar este objetivo realizamos entrevistas etnográficas a informantes clave para indagar cuáles son las percepciones acerca de lo que supone vivir en un barrio con estas características. Entre los principales hallazgos observamos que las condiciones de desigualdad en las que se encuentran inmersas las mujeres de LVDP varía de acuerdo a los ciclos del río, es decir, si está bajo o si hay inundación.
En conclusión, el artículo destaca la importancia de considerar las peculiaridades geográficas y las condiciones de vida e infraestructura de los barrios en la forma en que las mujeres se relacionan con ellos.
Membrane distillation of synthetic urine for use in space structural habitat systems
Authors: Sagar Viral , Mekalip Lauren M. , Lynam Joan G. 
Published: February 2024

Abstract
Low-energy separation of potable water from urine is an important area of research, particularly if humans hope to transcend their earth-bound origins. The high cost of water in rocket payloads means that it must be recycled and the byproducts of the crew used productively. Direct Contact Membrane Distillation (DCMD) can use low heat sources to separate water from urea, which can then be used as a plasticizer in regolith-based cement to make it more workable. In the present study, traditional cement curing was compared to vacuum curing for regolith-based cement where artificial urine, concentrated using DCMD, was added as a plasticizer. Increases in workability were found for increasing concentrations of urea. Porosity also tended to increase with increasing urea concentration. Surprisingly, Lunar Highlands Simulant regolith-based batches with urea that were cured under vacuum showed higher compressive strengths than those cured traditionally. No literature is available for DCMD use with urine, indicating that this research is novel and could have widespread applications, such as in desert environments or public urinals.
Coupled AC2-CFD simulations for a high-pressure core melt accident scenario
Authors: Herb Joachim , Hristov Hristo V. , Steinrötter Thomas 
Published: February 2024

Abstract
Even though very unlikely to occur, severe accident scenarios in nuclear power plants have to be analyzed. During high-pressure core meltdown scenarios in a pressurized water reactor the primary circuit should fail first. Previous analyses found that a free convection flow within the vertical steam generator (SG) tubes with a simultaneous stratified gas counterflow in the hot legs could arise. This phenomenon leads to higher thermal loads on individual SG tubes which might then fail leading to a containment bypass and the release of radioactive material into the environment. Lumped parameter system codes used for safety analyses do not provide the models necessary to simulate phenomena like mixing in three-dimensional flows and could not consider local turbulence effects. Computational fluid dynamic (CFD) codes provide such capabilities but are much more computationally expensive. Coupling of a system code with a CFD code can therefore be used to simulate such phenomena. The advantages of both approaches can be maximized by splitting up the simulation domain between the codes, depending on the expected flow conditions. The system code AC2 coupled with the CFD code OpenFOAM was used to simulate part of the severe accident transient. Free convection in the hot leg and the U-tubes of the vertical SG was observed in case of high-pressure severe accident sequences. The thermal load of individual SG tubes has been estimated from the results. These loads can be used as inputs for structural-mechanical analyses to estimate which part of the primary circuit would fail first.
Exploring the chronostratigraphy of a Bronze Age settlement through core drilling
Authors: Lie Marian Adrian , Găvan Alexandra , Kienlin Tobias L. , Röpke Astrid , Zickel Mirijam , Zerl Tanja 
Published: February 2024

Abstract
Core drilling has been used successfully in archaeology for a variety of applications, including mapping stratigraphy across large areas, estimating feature depth and content, understanding site formation processes, as well as complementing information obtained through surface collection and geophysical survey. In this paper, we provide an overview of the first core drilling campaign carried out in 2021 on the outer settlement of the Bronze Age tell from Toboliu in western Romania. The overall aim of this coring program was to gather information regarding the nature of various features within the settlement, with a focus on the anomalies visible in the geomagnetic site plan. Based on 165 drilled cores, a reconstruction of the site’s stratigraphy is presented in this paper. This reconstruction was controlled and confirmed by excavations in one of the coring transects where the stratigraphic interpretation of the cores could be linked with the excavated stratigraphy. Additionally, samples for radiocarbon dating were collected from several cores. Based on this data, we discuss preliminary insights into possible house locations and preservation issues, as well as the chronological development and occupation sequence of this complex site.
New constructions of nonregular cospectral graphs
Authors: Hamud Suleiman , Berman Abraham 
Published: February 2024

Abstract
We consider two types of joins of graphs

G

1

{G}_{1}

and

G

2

{G}_{2}

,

G

1

⊻

G

2

{G}_{1}\hspace{0.33em}&#x22BB;\hspace{0.33em}{G}_{2}

– the neighbors splitting join and

G

1

∨

=

G

2

{G}_{1}\mathop{\vee }\limits_{=}{G}_{2}

– the nonneighbors splitting join, and compute the adjacency characteristic polynomial, the Laplacian characteristic polynomial, and the signless Laplacian characteristic polynomial of these joins. When

G

1

{G}_{1}

and

G

2

{G}_{2}

are regular, we compute the adjacency spectrum, the Laplacian spectrum, the signless Laplacian spectrum of

G

1

∨

=

G

2

{G}_{1}\mathop{\vee }\limits_{=}{G}_{2}

, and the normalized Laplacian spectrum of

G

1

⊻

G

2

{G}_{1}\hspace{0.33em}&#x22BB;\hspace{0.33em}{G}_{2}

and

G

1

∨

=

G

2

{G}_{1}\mathop{\vee }\limits_{=}{G}_{2}

. We use these results to construct nonregular, nonisomorphic graphs that are cospectral with respect to the four matrices: adjacency, Laplacian, signless Laplacian and normalized Laplacian.
Vibration IOT Control Algorithm for Steel Structures of Concrete Buildings with Elastic Boundary Constraints
Authors: Lu Chunting , Li Yang 
Published: February 2024

Abstract
Because of the influence of steel structure’s elastic properties in concrete buildings, the traditional vibration Internet of Things (IOT) control algorithm of steel structures has the problem of low control efficiency. Based on the research subject of concrete buildings, a corresponding steel structure model is established, and the corresponding vibration control standard is determined according to the characteristics of the model. In this model, the boundary elastic constraints of the steel structure are set according to its structural characteristics, and the vibration characteristics of the steel structure are analyzed under the constraints. The external vibration signal is simulated, and the response of the building’s steel structure under different signal excitations is observed. According to the response characteristics of the steel structure, the vibration controller is designed and installed, the real-time vibration signal is input into the controller, and finally the vibration control of steel structure of concrete building is realized. By comparison with the traditional vibration IOT control algorithm, it is concluded that the vibration control method designed by combining vibration frequency and vibration amplitude has smaller error and shorter time cost, that is, the designed vibration IOT control algorithm has more advantages in control efficiency.
Impact Of Gender on Job Satisfaction And Organizational Commitment In Manufacturing Sector
Authors: Singh Dhara , Kumar Sanjeev , Meet Manoj Kumar 
Published: February 2024

These days, in the field of research, specially, job satisfaction has developed as one of the most preferred and doable topics. The business institutions are more concern over the effect on the performance of the organizations. Job satisfaction is connected to the effective response to the working environment and organizational commitment is considered as more consistent and continuing attitudes of employees. Many studies have found that job satisfaction and organizational commitment play vital role in the growth and development of an organization. Any organization is not be able to attain the competitive level of excellence, from the product point of view or from the customer point of view, without taking into consideration the satisfaction level of its employees. In this study, effect of gender on both the attitudes of a person – job satisfaction and organizational commitment has been investigated. The responses of employees from manufacturing sectors have been collected and analysed to get the result. It revealed that men and women have similar level of job satisfaction and organizational commitment.