bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of factors associated with interhospital transfers to pediatric and adult tertiary level of care: A study of acute neurological disease cases
Authors: Iacob Stanca , Wang Yanzhi , Peterson Susan C. , Ivankovic Sven , Bhole Salil , Tracy Patrick T. , Elwood Patrick W. 
Published: December 2022

Introduction
Patient referrals to tertiary level of care neurological services are often potentially avoidable and result in inferior clinical outcomes. To decrease transfer burden, stakeholders should acquire a comprehensive perception of specialty referral process dynamics. We identified associations between patient sociodemographic data, disease category and hospital characteristics and avoidable transfers, and differentiated factors underscoring informed decision making as essential care management aspects.

Materials and methods
We completed a retrospective observational study. The inclusion criteria were pediatric and adult patients with neurological diagnosis referred to our tertiary care hospital. The primary outcome was potentially avoidable transfers, which included patients discharged after 24 hours from admission without requiring neurosurgery, neuro-intervention, or specialized diagnostic methodologies and consult in non-neurologic specialties during their hospital stay. Variables included demographics, disease category, health insurance and referring hospital characteristics.

Results
Patient referrals resulted in 1615 potentially avoidable transfers. A direct correlation between increasing referral trends and unwarranted transfers was observed for dementia, spondylosis and trauma conversely, migraine, neuro-ophthalmic disease and seizure disorders showed an increase in unwarranted transfers with decreasing referral trends. The age group over 90 years (OR, 3.71), seizure disorders (OR, 4.16), migraine (OR, 12.50) and neuro-ophthalmic disease (OR, 25.31) significantly associated with higher probability of avoidable transfers. Disparities between pediatric and adult transfer cases were identified for discrete diagnoses. Hospital teaching status but not hospital size showed significant associations with potentially avoidable transfers.

Conclusions
Neurological dysfunctions with overlapping clinical symptomatology in ageing patients have higher probability of unwarranted transfers. In pediatric patients, disease categories with complex symptomatology requiring sophisticated workup show greater likelihood of unwarranted transfers. Future transfer avoidance recommendations include implementation of measures that assist astute disorder assessment at the referring hospital such as specialized diagnostic modalities and teleconsultation. Additional moderators include after-hours specialty expertise provision and advanced directives education.
Small intestinal bacterial overgrowths and intestinal methanogen overgrowths breath testing in a real-life French cohort
Authors: Plauzolles Anne , Uras Stella , Pénaranda Guillaume , Bonnet Marion , Dukan Patrick , Retornaz Frédérique , Halfon Philippe 
Published: December 2022

Abstract

Background
Breath testing has become a widely used tool to diagnose small intestinal bacterial overgrowths (SIBO) and intestinal methanogen overgrowths (IMO) in clinical settings. Due to the heterogeneity in clinical manifestations and lack of standardization among centers performing breath testing, SIBO and IMO can be easily overlooked by the clinician.
We studied the prevalence and symptoms of SIBO/IMO in French patients referred for breath testing after seeking medical advice.

Methods
Breath test data and symptoms of 331 patients were assessed for SIBO/IMO using the H2/CH4 lactulose breath test (LBT). Wilcoxon test or χ2 test were used to compare patients with SIBO/IMO to patients without SIBO/IMO. LBT positive patients (H2+, CH4+, and CH4+/H2+) were compared using Kruskal-Wallis test for continuous data or χ2 test for categorical data.

Results
Among the 186 (68.1%) patients tested positive for an overgrowth with respectively 40.3%, 47.3%, 12.4% for H2+, CH4+ and CH4+/H2+, presence of diarrhea was significantly increased in hydrogen type overgrowths (p<0.001). No significant difference according to age, gender and symptoms was associated with a positive test except for joint pain that was less prevalent among LBT positive patients (p=0.038). In 86.5% of IMOs, positivity with CH4 values ≥10ppm could be identified at baseline.

Conclusions
There are little discriminating symptoms that can help the clinician to identify patients likely to have a SIBO/IMO. However, SIBO/IMOs remain a common disorder widely underdiagnosed that need further studies to better apprehend functional bowel disorders.
Closed-Loop-Recycling von Förderketten aus Kunststoff
Authors: Sumpf Jens , Golder Markus 
Published: December 2022

In Transport- und Verkettungsprozessen werden zunehmend Stetigförderer mit Ketten aus technischen Thermoplasten, vorzugsweise aus Polyoxymethylen (POM), hergestellt. Verschlissene Ketten, die sich im Schnitt ca. 2-10 Jahre im industriellen Einsatz unter verschiedensten Belastungs- und Umgebungsbedingungen befinden, werden ausgetauscht und derzeit ausschließlich im Restmüll entsorgt. Im Beitrag werden die mechanischen und tribologischen Eigenschaften von homo- und copolymerem POM bei mehrfacher Verarbeitung sowie Vermischung der Materialtypen analysiert. Auf dieser Grundlage wurde ein Rezyklat aus mehrjährig in industriellen Anwendungen gelaufenen POM-Ketten hergestellt und daraus Proben und Förderketten für weitere Untersuchungen gefertigt. Es wird gezeigt, dass die wertvollen Kunststoffe durchaus erfolgreich recycelt und wieder zu neuen Bauteilen verarbeitet werden können.
In transport and linking processes, continuous conveyors with chains made of engineering thermoplastics, preferably polyoxymethylene (POM), are increasingly being used. Worn chains, which are used in industrial applications for an average of 2-10 years under a wide variety of load and environmental conditions, are replaced and currently disposed of in the residual waste. The article analyses the mechanical and tribological properties of homo- and copolymeric POM during multiple processing and blending of the material types. Based on this, a recyclate was produced from POM conveyor chains that had been used in industrial applications for several years. Samples and chains were made from this material for further investigations. It is shown that the valuable plastics can be successfully recycled and reprocessed into new components.
Relationship Between Preprocedural Lipid Levels and Periprocedural Myocardial Injury in Patients Undergoing Elective Percutaneous Coronary Intervention
Authors: Maadani Mohsen , Sarraf Nima Sari , Alilou Sanam , Aeinfar Kamran , Sadeghipour Parham , Zahedmehr Ali , Fathollahi Mahmood Sheikh , Hashemi Ghadi Seyyed Isa , Zavarehee Abbas , Zolfaghari Maryam , Zolfaghari Reza 
Published: December 2022

Background
Periprocedural myocardial injury is a predictor of cardiovascular morbidity and mortality after percutaneous coronary intervention.

Methods
The authors examined the effects of preprocedural lipid levels (low-density lipoprotein, high-density lipoprotein, and triglycerides) in 977 patients with coronary artery disease who underwent elective percutaneous coronary intervention.

Results
Elevated cardiac troponin I level (≥5× the upper limit of normal) was used to indicate periprocedural myocardial injury. Serum lipid samples were collected 12 hours preprocedurally. Cardiac troponin I was collected 1, 6, and 12 hours postprocedurally. Correlations between preprocedural lipid levels and postprocedural cardiac troponin I were studied. Low-density lipoprotein levels were less than 70 mg/dL in 70% of patients and greater than 100 mg/dL in only 7.4% of patients; 13% had triglyceride levels greater than or equal to 150 mg/dL, and 96% had high-density lipoprotein levels less than 40 mg/dL. Patients with elevated cardiac troponin I had significantly lower left ventricular ejection fraction than did those with cardiac troponin I levels less than 5× the upper limit of normal (P = .01). Double-and triple-vessel disease were more common in patients with elevated cardiac troponin I (P < .002). Multivariable logistic and linear regression analyses revealed no statistically significant associations between lipid levels and postprocedural cardiac troponin I elevation, possibly because such large proportions of included patients had low levels of low-density lipoprotein (70%) and a history of statin intake (86%).

Conclusion
The authors found no association between lipid profile and periprocedural myocardial injury.
Angio-Seal Used as a Bailout for Incomplete Hemostasis After Dual Perclose ProGlide Deployment in Transcatheter Aortic Valve Implantation
Authors: Cakal Beytullah , Cakal Sinem , Karaca Oguz , Yilmaz Filiz Kizilirmak , Gunes Haci Murat , Yildirim Arzu , Ulas Ozcan Ozgur , Guler Yeliz , Boztosun Bilal 
Published: December 2022

Background
The failure rate of vascular closure devices remains a significant cause of major vascular complications in contemporary transcatheter aortic valve implantation practice.

Methods
This research aimed to evaluate use of the Angio-Seal device in a bailout context in the setting of incomplete hemostasis following use of dual Perclose ProGlide devices in patients undergoing transfemoral transcatheter aortic valve implantation. A total of 185 patients undergoing transfemoral transcatheter aortic valve implantation with either dual Per-close ProGlide (n = 139) or a combination of dual Perclose ProGlide and Angio-Seal (n = 46) were retrospectively analyzed. The baseline, procedural characteristics, and all outcomes (defined according to Valve Academic Research Consortium-2 criteria) were compared.

Results
No significant differences were seen between the dual Perclose ProGlide vs dual Perclose ProGlide+Angio-Seal groups with regard to the in-hospital Valve Academic Research Consortium-2 primary end points of major vascular complications (n = 13 [9.4%] vs n = 2 [4.3%]; P = .36), minor vascular complications (n = 13 [9.4%] vs n = 8 [14.7%]; P = .14), major bleeding (n = 16 [11.5%] vs n = 2 [4.3%]; P = .25), and minor bleeding (n = 9 [6.5%] vs n = 5 [10.9%]; P = .34), with higher rates of hematoma in the dual Perclose ProGlide+Angio-Seal group (n = 4 [2.9%] vs n = 5 [10.9%]; P = .044).

Conclusion
Finding from the current study suggest that adjunctive Angio-Seal deployment may be feasible and safe, especially in patients with incomplete hemostasis following dual Perclose ProGlide use, and can be an optimal “bailout” procedure.
University of Babylon Performance in Setting and Infrastructure Indicator through UIGreenMetric 2017-2020. (A comparative study)
Authors: Hussein Kahtan H. , Hassoon Abbas Fadhil , Abdulhassan Aladdin , Al-Muttairi Bushra MK.K. , Tameemi Waleed A 
Published: December 2022

The category of setting and infrastructure indicator (SI) is chosen in this comparative study referring to the fact file scores obtained by the University of Babylon during the last four participations into the UI Green Metric Rankings. In general, the scores indicated an escalation in the university performance of the whole six sub-indicators of the setting and infrastructure criterion (SI) from 2017-2020. These results confirmed that the university; by its leadership, staff and students, focused on upgrading and developing its infrastructure for setting a green and safe educational environment for most employees and students. That is to achieve a green campus contributing in the global efforts for achieving the UN agenda of SDGs 2015-2030. Furthermore, all practices of university performance coped with its vision, mission, and objective goals of university strategic plan from 2018-2022, which contained the commitments to set up with most of SDGs, especially related to sustainable cities or campuses. The results also showed an ascending and remarkable progress from 2017 to 2020 with an unexpected regression in 2019, which required the development of an improvement plan to address weaknesses, maintain and enhance strengths, to get good results for university in the 2020 edition of UI GreenMetric Ranking. Keyword: Green university, practices, Sustainable Development Goals (SDGs), SI, setting and infrastructure indicator, University of Babylon.
Good Transport Practices in University of West Attica
Authors: Papantoniou P. , Kaldis P. 
Published: December 2022

University of West Attica operates in three Campuses, all within the metropolitan region of Attica, indicating that the mobility characteristics of these campuses are similar to urban models and in most cases, could be used as a test area for mobility policies related to public transport, multimodality or transport restrictions. Within the Cοvid-19 period, University of West Attica made important progress in transport related issues that are very critical for the smooth operation of the campuses and the University as a whole. The key transport related good practices refer to several thematic areas including parking management, soft modes infrastructure, public transport, car related issues, road infrastructure, environment, and energy. All these key interventions have a positive impact not only for the members of the academic society of University of West Attica but also to the mobility characteristics of West and Central Attica where university campuses are located and interact with Attica residents and tourists.Keyword: University of West Attica, Campus, Urban Mobility, Transport, Parking
The new Unimore interdisciplinary teaching on transversal sustainability skills
Authors: Ghermandi Grazia , Despini Francesca 
Published: December 2022

The global situation of the Covid-19 pandemic has changed several aspects of University life and management. In this context, the University of Modena and Reggio Emilia (Unimore) has introduced a new course for all of its students called "Transversal Skills on Sustainability". This course consists of 13 Modules offered by the various Unimore Departments to address the issue of Sustainability at 360 degrees. Each Department offers a thematic module concerning Sustainability in its own field of study and research. The course ranges from engineering issues with renewable energy, waste, air quality, to economics and sustainable finance. In addition, the course deals with issues related to sustainability in the medical, chemical and legal fields and many others. In this first year of delivery, this teaching has proven to be highly appreciated among students. Over 950 students have enrolled in teaching for the 2020/2021 academic year. Enrolled students come from all areas of the university: there are students of engineering, geology, economics, chemistry, but also of medicine, pharmacy, and many others.Keyword: Education, Sustainability, Multidisciplinary, global approach
BEM-Based Magnetic Field Reconstruction by Ensemble Kálmán Filtering
Authors: Liebsch Melvin , Russenschuck Stephan , Kurz Stefan 
Published: December 2022

AbstractMagnetic fields generated by normal or superconducting electromagnets are used to guide and focus particle beams in storage rings, synchrotron light sources, mass spectrometers, and beamlines for radiotherapy. The accurate determination of the magnetic field by measurement is critical for the prediction of the particle beam trajectory and hence the design of the accelerator complex. In this context, state-of-the-art numerical field computation makes use of boundary-element methods (BEM) to express the magnetic field. This enables the accurate computation of higher-order partial derivatives and local expansions of magnetic potentials used in efficient numerical codes for particle tracking. In this paper, we present an approach to infer the boundary data of an indirect BEM formulation from magnetic field measurements by ensemble Kálmán filtering. In this way, measurement uncertainties can be propagated to the boundary data, magnetic field and potentials, and to the beam related quantities derived from particle tracking. We provide results obtained from real measurement data of a curved dipole magnet using a Hall probe mapper system.
Sectoriality of degenerate elliptic operators via p-ellipticity
Authors: Do Tan Duc 
Published: December 2022

Abstract
Let

Ω
⊂

ℝ
d

{\Omega\subset\mathbb{R}^{d}}

be open and

c

k
⁢
l

∈

L
∞

⁢

(
Ω
,
ℂ
)

{c_{kl}\in L_{\infty}(\Omega,\mathbb{C})}

with

Im
⁡

c

k
⁢
l

=

Im
⁡

c

l
⁢
k

{\operatorname{Im}c_{kl}=\operatorname{Im}c_{lk}}

for all

k
,
l

∈

{
1
,
…
,
d
}

{k,l\in\{1,\ldots,d\}}

.
Assume that

C
=

(

c

k
⁢
l

)

1
≤
k

,

l
≤
d

{C=(c_{kl})_{1\leq k,l\leq d}}

satisfies

(

C
⁢

(
x
)

⁢
ξ

,
ξ
)

∈

Σ
θ

{(C(x)\xi,\xi)\in\Sigma_{\theta}}

for all

x
∈
Ω

{x\in\Omega}

and

ξ
∈

ℂ
d

{\xi\in\mathbb{C}^{d}}

, where

Σ
θ

{\Sigma_{\theta}}

is the closed sector with vertex 0 and semi-angle θ in the complex plane.
We emphasize that Ω is an arbitrary domain and C need not be symmetric.
We show that C is (degenerate) p-elliptic for all

p
∈

(
1
,
∞
)

{p\in(1,\infty)}

with

|

1
-

2
p

|

<

cos
⁡
θ

{|1-\frac{2}{p}|<\cos\theta}

in the sense of Carbonaro and Dragičević.
As a consequence, we obtain the consistent holomorphic extension for the

C
0

{C_{0}}

-semigroup generated by the second-order differential operator in divergence form associated with C.
The core property for this operator is also investigated.
Extraction of mineralized indicator minerals using ensemble learning model optimized by SSA based on hyperspectral image
Authors: Lin Nan , Liu Hanlin , Li Genjun , Wu Menghong , Li Delin , Jiang Ranzhe , Yang Xuesong 
Published: December 2022

Abstract
Mineralized indicator minerals are an important geological and mineral exploration indicator. Rapid extraction of mineralized indicator minerals from hyperspectral remote sensing images using ensemble learning model has important geological significance for mineral resources exploration. In this study, two mineralized indicator minerals, limonite and chlorite, exposed at the surface of Qinghai Gouli area were used as the research objects. Sparrow search algorithm (SSA) was combined with random forest (RF) and gradient boosting decision tree (GBDT) ensemble learning models, respectively, to construct hyperspectral mineralized indicative mineral information extraction models in the study area. Youden index (YD) and ore deposit coincidence (ODC) were applied to evaluate the performance of different models in the mineral information extraction. The results indicate that the optimization of SSA parameter algorithm is obvious, and the accuracy of both the integrated learning models after parameter search has been improved substantially, among which the SSA-GBDT model has the best performance, and the YD and the ODC can reach 0.661 and 0.727, respectively. Compared with traditional machine learning model, integrated learning model has higher reliability and stronger generalization performance in hyperspectral mineral information extraction and application, with YD greater than 0.6. In addition, the distribution of mineralized indicative minerals extracted by the ensemble learning model after parameter optimization is basically consistent with the distribution pattern of the fracture tectonic spreading characteristics and known deposits (points) in the area, which is in line with the geological characteristics of mineralization in the study area. Therefore, the classification and extraction model of minerals based on hyperspectral remote sensing technology, combined with the SSA optimization algorithm and ensemble learning model, is an efficient mineral exploration method.
The most efficient indifferentiable hashing to elliptic curves ofj-invariant 1728
Authors: Koshelev Dmitrii 
Published: December 2022

AbstractThis article makes an important contribution to solving the long-standing problem of whether all elliptic curves can be equipped with a hash function (indifferentiable from a random oracle) whose running time amounts to one exponentiation in the basic finite fieldFq{{\mathbb{F}}}_{q}. More precisely, we construct a new indifferentiable hash function to any ordinary ellipticFq{{\mathbb{F}}}_{q}-curveEa{E}_{a}ofj-invariant 1728 with the cost of extracting one quartic root inFq{{\mathbb{F}}}_{q}. As is known, the latter operation is equivalent to one exponentiation in finite fields with which we deal in practice. In comparison, the previous fastest random oracles toEa{E}_{a}require to perform two exponentiations inFq{{\mathbb{F}}}_{q}. Since it is highly unlikely that there is a hash function to an elliptic curve without any exponentiations at all (even if it is supersingular), the new result seems to be unimprovable.
Ideal single mode laser operation with single drive conventional/phase shift Mach–Zehnder modulators measured in optical access networks
Authors: Zaki Rashed Ahmed Nabih , Altahan Baraa Riyadh , Manasavenna Thaticharla , Priya P. Poorna , Krishna M. Rama , Ahammad S. K. Hasane , Hossain Md. Amzad , Dakua Pratap Kumar , Panda Deepak Kumar , Hossain Amany 
Published: December 2022

Abstract
The work outlined ideal single mode laser operation with single measured drive phase shift/conventional Mach–Zehnder modulators (MZM) in optical access networks is simulated and analyzed. Maximum signal power level versus spectral wavelength and time domain spectrum after fiber channel based 1.5 splitting ratio conventional/phase shift MZM and Idea single mode laser is measured accurately. Maximum Q coefficient of 35.87 and mini bit error rates of 2.3279 × 10−282 in the case of conventional MZM and idea single mode laser. Maximum Q coefficient of 17.86 and mini error rate of 1.0376 × 10−71 in the case of phase shift MZM and Idea single mode laser.
Evolutionary design of two-dimensional material Fabry–Perot structures for enhanced second harmonic generation
Authors: Biswas Rabindra , Prosad Asish , Krishna Lal A. S. , Menon Sruti , Raghunathan Varun 
Published: December 2022

Abstract
The integration of two-dimensional (2D) materials with resonant photonic structures is seen as a promising direction for enhancing its nonlinear optical response. The design of such heterogeneous resonant structures has often relied on multi-parameter sweeps to determine the optimized dimensions of resonant optical structure that results in good resonance characteristics, often in the absence of the 2D material. Such an approach is computationally intensive and may not necessarily result in efficient generation or collection of nonlinear signals from the designed structure. Here, we report hybrid-genetic optimization (HGA) based design and experimental demonstration of second harmonic generation (SHG) enhancement from Fabry–Perot structures of single and double multilayer gallium selenide (GaSe) flakes with bottom silicon dioxide, and index matched polymethyl methacrylate spacer/encapsulation layers. HGA technique utilized here speeds up the multilayer cavity design by 8.8 and 89-times for the single and double GaSe structures when compared to the full parameter-sweep, with measured SHG enhancement of 128- and 400-times, respectively, when compared to a reference sample composed of GaSe layer of optimized thickness on 300 nm silicon dioxide layer. SHG conversion efficiencies obtained from the HGA structures are 1–2 orders of magnitude higher than previous reports on 2D material integrated resonant metasurfaces or Bragg cavities.