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Article ; Online: Investigating the role of phonons in the phase stability of uranium-based Laves phases.

Nykwest, Erik / Shields, Ashley E / Brubaker, Z E / Niedziela, J L / Isbill, S B / Miskowiec, Andrew

RSC advances

2023 Volume 13, Issue 13, Page(s) 8646–8656

Abstract: Laves phase alloys possess unique thermal and electrical conduction properties, yet the factors governing phase stability in these systems remain an open question. The influence of phonons in particular has been broadly overlooked. Here, we investigate ... ...

Abstract	Laves phase alloys possess unique thermal and electrical conduction properties, yet the factors governing phase stability in these systems remain an open question. The influence of phonons in particular has been broadly overlooked. Here, we investigate the UCo
Language	English
Publishing date	2023-03-15
Publishing country	England
Document type	Journal Article
ISSN	2046-2069
ISSN (online)	2046-2069
DOI	10.1039/d3ra00498h
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Article ; Online: Computational investigations of Dienes defect- and vacancy-induced changes in the electronic and vibrational properties of carbon fiber structural units.

Isbill, Sara B / Shields, Ashley E / Kapsimalis, Roger J / Niedziela, J L

Physical chemistry chemical physics : PCCP

2021 Volume 23, Issue 48, Page(s) 27385–27396

Abstract: Carbon fiber (CF) is a promising lightweight alternative to steel and is of significant interest for energy applications. As CF continues to find new uses and is exposed to new external conditions, a noninvasive method of monitoring its structural ... ...

Abstract	Carbon fiber (CF) is a promising lightweight alternative to steel and is of significant interest for energy applications. As CF continues to find new uses and is exposed to new external conditions, a noninvasive method of monitoring its structural integrity is critical. Raman spectroscopy is a commonly used method for this monitoring; however, it is highly inferential, and the interpretation of the data is not always straightforward. In this work, we perform density functional theory (DFT) calculations to investigate changes in the vibrational properties of CF structural units (
Language	English
Publishing date	2021-12-15
Publishing country	England
Document type	Journal Article
ZDB-ID	1476244-4
ISSN	1463-9084 ; 1463-9076
ISSN (online)	1463-9084
ISSN	1463-9076
DOI	10.1039/d1cp03930j
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Article: Prognostic Value of Spot Urinary Creatinine Concentration and Its Relationship with Body Composition Parameters in HF Patients.

Malinowska-Borowska, Jolanta / Piecuch, Małgorzata / Szlacheta, Patryk / Kulik, Aleksandra / Niedziela, Jacek / Nowak, Jolanta Urszula / Pyka, Łukasz / Gąsior, Mariusz / Rozentryt, Piotr

Biomedicines

2023 Volume 11, Issue 5

Abstract: Background: Low 24-h urinary excretion of creatinine in patients with heart failure (HF) is believed to reflect muscle wasting and is associated with a poor prognosis. Recently, spot urinary creatinine concentration (SUCR) has been suggested as a useful ...

Abstract	Background: Low 24-h urinary excretion of creatinine in patients with heart failure (HF) is believed to reflect muscle wasting and is associated with a poor prognosis. Recently, spot urinary creatinine concentration (SUCR) has been suggested as a useful prognostic factor in selected HF cohorts. This more practical and cheaper approach has never been tested in an unselected HF population. Moreover, neither the relation between SUCR and body composition markers nor the association of SUCR with the markers of volume overload, which are known to worsen clinical outcome, has been studied so far. The aim of the study was to check the prognostic value of SUCR in HF patients after adjusting for body composition and indirect markers of volume overload. Methods: In 911 HF patients, morning SUCR was determined and body composition scanning using dual X-ray absorptiometry (DEXA) was performed. Univariable and multivariable predictors of log SUCR were analyzed. All participants were divided into quartiles of SUCR. Results: In univariable analysis, SUCR weakly correlated with fat-free mass (R = 0.09, Conclusions: Lower SUCR levels in HF patients are associated with a worse outcome, but this effect is not correlated with fat-free mass. Fluid overload-driven effects may link lower SUCR with higher mortality in HF.
Language	English
Publishing date	2023-05-12
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2720867-9
ISSN	2227-9059
ISSN	2227-9059
DOI	10.3390/biomedicines11051429
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Article ; Online: The influence of severe mitral regurgitation on major adverse cardiac and cerebrovascular events after myocardial infarction in 1-year follow-up: Data from PL-ACS registry.

Ładziński, Szymon / Niedziela, Jacek / Witkowski, Adam / Bartuś, Stanisław / Lesiak, Maciej / Milewski, Krzysztof / Gierlotka, Marek / Trzeciak, Przemysław / Gąsior, Mariusz / Wojakowski, Wojciech

Kardiologia polska

2023

Abstract: Background: Mitral regurgitation (MR) is frequently observed in patients with myocardial infarction (MI). However, the incidence of severe MR in contemporary population is unknown.: Aims: The study evaluates the prevalence and prognostic impact of ... ...

Abstract	Background: Mitral regurgitation (MR) is frequently observed in patients with myocardial infarction (MI). However, the incidence of severe MR in contemporary population is unknown. Aims: The study evaluates the prevalence and prognostic impact of severe MR in contemporary population of patients with ST-segment elevation myocardial infarction (STEMI) and non-ST-segment elevation myocardial infarction (NSTEMI). Methods: The study group consists of 8062 patients enrolled in the Polish Registry of Acute Coronary Syndromes over the years 2017‒2019. Only the patients with full echocardiography performed during the index hospitalization were eligible. Primary composite outcome was 12-month major adverse cardiac and cerebrovascular events (MACCE) (death, non-fatal MI, stroke and heart failure [HF] hospitalization) compared between patients with and without severe MR. Results: 5561 NSTEMI patients and 2501 STEMI patients were enrolled into the study. Severe MR occurred in 66 (1.19%) NSTEMI patients and 30 (1.19%) STEMI patients. Multivariable regression models revealed that severe MR is an independent risk factor of all-cause death in 12-month observation (odds ratio [OR], 1.839; 95% confidence interval [CI], 1.012‒3.343; P = 0.046) in all MI patients. Patients with NSTEMI and severe MR had higher mortality (22.7% vs. 7.1%), HF rehospitalization rate (39.4% vs. 12.9%) and MACCE occurrence (54.5% vs. 29.3%). Severe MR was associated with higher mortality (20% vs. 6%) and higher HF rehospitalization (30% vs. 9.8%), stroke (10% vs. 0.8%) and MACCE rates (50% vs. 23.1%) in STEMI patients. Conclusions: Severe MR is associated with higher mortality and MACCE occurrence in patients with MI in 12-month follow-up. Severe MR is an independent risk factor of all-cause death.
Language	English
Publishing date	2023-03-16
Publishing country	Poland
Document type	Journal Article
ZDB-ID	411492-9
ISSN	1897-4279 ; 0022-9032
ISSN (online)	1897-4279
ISSN	0022-9032
DOI	10.33963/KP.a2023.0064
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Article ; Online: Baseline characteristics of Polish patients with heart failure with ejection fraction >40%: Results of HF-POL, the first study of Heart Failure Association.

Major, Katarzyna / Sawościan, Maria / Budnik, Monika / Gąsior, Mariusz / Gierlotka, Marek / Grabowski, Marcin / Kasprzak, Jarosław / Krakowiak, Bartosz / Krzesiński, Paweł / Nessler, Jadwiga / Niedziela, Jacek / Pawlak, Agnieszka / Tomaszuk-Kazberuk, Anna / Wita, Krystian / Lelonek, Małgorzata

Kardiologia polska

2024

Language	English
Publishing date	2024-03-17
Publishing country	Poland
Document type	Journal Article
ZDB-ID	411492-9
ISSN	1897-4279 ; 0022-9032
ISSN (online)	1897-4279
ISSN	0022-9032
DOI	10.33963/v.phj.99195
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Article: Quantitative analysis of Raman spectral parameters for carbon fibers: practical considerations and connection to mechanical properties

Brubaker, Z. E. / Langford, J. J. / Kapsimalis, R. J. / Niedziela, J. L.

Journal of materials science. 2021 Sept., v. 56, no. 27

2021

Abstract: Although the literature on the Raman spectra of carbon fibers is vast, no consistent, robust predictive relationship between mechanical properties of carbon fibers and spectral parameters exists. This shortcoming is due to the use of numerous fitting ... ...

Abstract	Although the literature on the Raman spectra of carbon fibers is vast, no consistent, robust predictive relationship between mechanical properties of carbon fibers and spectral parameters exists. This shortcoming is due to the use of numerous fitting functions to evaluate Raman spectra of carbon fibers and the inconsistencies in establishing the best fitting models in a statistically robust fashion. To address this gap, we present a comprehensive work on the Raman spectra of carbon fibers that combines a vast library of experimental data with a robust numerical analysis and a statistical evaluation of a wide range of suggested fitting models. This manuscript begins with a brief review of the commonly applied fitting models. Then, the Raman spectra of 32 commercially available polyacrylonitrile-based carbon fibers collected at excitation wavelengths 532, 633, and 785 nm are presented and the best fit for all fibers is evaluated based on several statistical criteria in conjunction with numerical calculations and physical arguments. The results suggest that high-performance fibers must be fit with at least five peaks, whereas high-tensile modulus fibers are best fit with at least six distinct peaks. Finally, we employ simultaneous fitting of the Raman spectra of specific fibers and wavelengths and demonstrate that strong correlations exist between mechanical properties and the D1 peak position and shape across the range of evaluated mechanical properties. We suggest straightforward improvements in fitting analysis procedures that can be implemented to increase coherency in the understanding of the underlying carbon fiber microstructure intuited from Raman spectroscopy.
Keywords	Raman spectroscopy ; carbon ; carbon fibers ; microstructure ; quantitative analysis
Language	English
Dates of publication	2021-09
Size	p. 15087-15121.
Publishing place	Springer US
Document type	Article
ZDB-ID	2015305-3
ISSN	1573-4803 ; 0022-2461
ISSN (online)	1573-4803
ISSN	0022-2461
DOI	10.1007/s10853-021-06225-1
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Article ; Online: Role of Pro-Brain Natriuretic Peptide Serum Concentration in the Detection of Pulmonary Hypertension in Patients With End-Stage Lung Diseases Referred for Lung Transplantation.

Nowak, J / Hudzik, B / Niedziela, J / Rozentryt, P / Zembala, M / Gąsior, M

Transplantation proceedings

2018 Volume 50, Issue 7, Page(s) 2044–2047

Abstract: Background: Serum N-terminal pro-brain natriuretic peptide (NT-proBNP) concentration is elevated in patients with pulmonary hypertension (PH); however, its role in the detection of PH associated with lung disease is not well established.: Aim: The ... ...

Abstract	Background: Serum N-terminal pro-brain natriuretic peptide (NT-proBNP) concentration is elevated in patients with pulmonary hypertension (PH); however, its role in the detection of PH associated with lung disease is not well established. Aim: The aim of this study was to assess the value of NT-proBNP in the detection of PH in patients with end-stage lung disease (esLD) referred for lung transplantation. Materials and methods: The study population consisted of 65 patients: 37 with idiopathic pulmonary fibrosis (IPF), 20 with chronic obstructive pulmonary disease, and 8 patients with other interstitial lung diseases (75% men, mean age 53.3 ± 9.5 years). Serum concentration of NT-proBNP was assessed with an immunoradiometric assay kit. The mean pulmonary artery pressure (mPAP) was measured using a Swan-Ganz catheter. PH was defined as mPAP ≥ 25 mm Hg. Results: Median NT-proBNP concentrations were significantly higher in patients with PH than in patients without PH: 139 (49-1236) pg/mL vs 67 (38-116) pg/mL, respectively; P = .016. Receiver operating characteristic (ROC) analysis revealed that NT-proBNP concentration higher than 131.5 pg/mL was a predictor of PH with good specificity (81%) and positive predictive value (78.9%) but low sensitivity (55.6%) and negative predictive value (58.6%). The area under the ROC curve of serum NT-proBNP concentration for PH was 0.71 (95% confidence interval 0.57-0.85, P = .039). Conclusion: Serum concentration of NT-proBNP may be useful in the diagnosis of PH in patients with esLD referred for lung transplantation.
MeSH term(s)	Adult ; Aged ; Biomarkers/blood ; Female ; Humans ; Hypertension, Pulmonary/blood ; Hypertension, Pulmonary/complications ; Hypertension, Pulmonary/diagnosis ; Lung Diseases/complications ; Lung Transplantation ; Male ; Middle Aged ; Natriuretic Peptide, Brain/blood ; Peptide Fragments/blood ; ROC Curve ; Sensitivity and Specificity
Chemical Substances	Biomarkers ; Peptide Fragments ; pro-brain natriuretic peptide (1-76) ; Natriuretic Peptide, Brain (114471-18-0)
Language	English
Publishing date	2018-03-14
Publishing country	United States
Document type	Journal Article
ZDB-ID	82046-5
ISSN	1873-2623 ; 0041-1345
ISSN (online)	1873-2623
ISSN	0041-1345
DOI	10.1016/j.transproceed.2018.02.149
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Article ; Online: Prevalence of Insomnia in the Early Post-COVID-19 Recovery Period.

Pudlo, Robert / Jaworska, Izabela / Szczegielniak, Anna / Niedziela, Jacek / Kułaczkowska, Zofia / Nowowiejska-Wiewióra, Alicja / Jaroszewicz, Jerzy / Gąsior, Mariusz

International journal of environmental research and public health

2022 Volume 19, Issue 21

Abstract: Background: Sleep is a complex, reversible process that is responsible for the modulation of various physiological mechanisms. COVID-19-related sleep disorders are affecting different populations with a heterogenous prevalence, yet high rates among ... ...

Abstract	Background: Sleep is a complex, reversible process that is responsible for the modulation of various physiological mechanisms. COVID-19-related sleep disorders are affecting different populations with a heterogenous prevalence, yet high rates among infected patients are frequently reported. The aim of the study is to assess the prevalence of insomnia in the early post-COVID-19 recovery period and explore the differences in the results acquired by the Athens Insomnia Scale (AIS) by gender and selected infection severity parameters. Methods: The data presented in the paper come from a prospective, observational study on COVID-19 complications (SILCOV-19) consisting of 200 COVID-19 patients. The AIS was used for the quantitative measurement of insomnia symptoms based on ICD-10 criteria. Results: 32% ( Conclusions: the prevalence of insomnia in the early post-COVID-19 recovery period is high.
MeSH term(s)	Humans ; Female ; Sleep Initiation and Maintenance Disorders/epidemiology ; COVID-19/epidemiology ; Prevalence ; Prospective Studies ; Sleep/physiology ; Sleep Wake Disorders/epidemiology
Language	English
Publishing date	2022-10-31
Publishing country	Switzerland
Document type	Observational Study ; Journal Article
ZDB-ID	2175195-X
ISSN	1660-4601 ; 1661-7827
ISSN (online)	1660-4601
ISSN	1661-7827
DOI	10.3390/ijerph192114224
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Article ; Online: Infarct-related artery and long-term mortality following recurrent ST-segment elevation myocardial infarction. Insights from a Polish nationwide registry.

Wolny, Rafał / Niedziela, Jacek / Desperak, Piotr / Kwieciński, Jacek / Opolski, Maksymilian P / Gąsior, Mariusz / Witkowski, Adam

American heart journal

2022 Volume 255, Page(s) 31–38

Abstract: Background: Recurrent ST-segment elevation myocardial infarction (rSTEMI) can be attributed to the same (target-vessel, TV-rSTEMI) or different culprit vessel (non-target, nonTV-rSTEMI) compared with the first infarction. We hypothesized that long-term ... ...

Abstract	Background: Recurrent ST-segment elevation myocardial infarction (rSTEMI) can be attributed to the same (target-vessel, TV-rSTEMI) or different culprit vessel (non-target, nonTV-rSTEMI) compared with the first infarction. We hypothesized that long-term mortality after rSTEMI depends on the infarct-related artery (the same or different compared with the first STEMI). Methods: Using the Polish Registry of Acute Coronary Syndromes (PL-ACS) we retrospectively identified survivors of first STEMI treated with PCI who experienced rSTEMI. We divided rSTEMI into TV-rSTEMI and nonTV-rSTEMI. We compared clinical, angiographic, and procedural characteristics and utilized propensity score matching to adjust for baseline differences. Primary outcome was 1-, 3- and 5-year all-cause mortality. Results: Between 2003 and 2019 a total of 3,411 patients (mean age 63.7 years, 76% male) had rSTEMI, of whom 1,916 (56%) had TV-rSTEMI and 1,495 (44%) had nonTV-rSTEMI. Median time since first infarction was 716 days (100, 1,807). Patients with nonTV-rSTEMI had higher body mass index (27.2 vs 26.7 kg/m Conclusions: Our study shows overall low frequency of rSTEMI. Patients with nonTV-rSTEMI have different clinical and angiographic characteristics compared with TV-rSTEMI. No long-term mortality difference was observed between both groups.
Language	English
Publishing date	2022-10-12
Publishing country	United States
Document type	Journal Article
ZDB-ID	80026-0
ISSN	1097-6744 ; 0002-8703
ISSN (online)	1097-6744
ISSN	0002-8703
DOI	10.1016/j.ahj.2022.10.004
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Article ; Online: Analysis of Water Coupling in Inelastic Neutron Spectra of Uranyl Fluoride.

Miskowiec, Andrew / Niedziela, J L / Kirkegaard, Marie C / Shields, Ashley E

Scientific reports

2019 Volume 9, Issue 1, Page(s) 10476

Abstract: Inelastic neutron scattering (INS) is uniquely sensitive to hydrogen due to its comparatively large thermal neutron scattering cross-section (82 b). Consequently, the inclusion of water in real samples presents significant challenges to INS data analysis ...

Abstract	Inelastic neutron scattering (INS) is uniquely sensitive to hydrogen due to its comparatively large thermal neutron scattering cross-section (82 b). Consequently, the inclusion of water in real samples presents significant challenges to INS data analysis due directly to the scattering strength of hydrogen. Here, we investigate uranyl fluoride (UO
Language	English
Publishing date	2019-07-19
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-019-46675-x
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