bluuebunny/crossref_metadata_2025_split huggingface dataset:
Serum vitamin E levels and chronic inflammatory skin diseases: A systematic review and meta-analysis
Authors: Liu Xiaofang , Yang Guang , Luo Mengxin , Lan Qi , Shi Xiaoxia , Deng Haoyuan , Wang Ningning , Xu Xuezhu , Zhang Cong 
Published: December 2021

Background
Vitamin E has long been linked to skin health, including all of its possible functions in cosmetic products, to its roles in membrane integrity and even the aging process. However, reports on the relationship between serum vitamin E levels and the risk of chronic inflammatory skin diseases have been inconsistent. We performed a systematic review and meta-analysis to evaluate the association between serum vitamin E levels and chronic inflammatory skin diseases.

Methods
We searched the PubMed, Web of Science and Scopus databases, with no time limit up to 30.06.2021. Studies examining serum vitamin E levels in patients with chronic inflammatory skin diseases were selected.

Results
Twenty articles met the inclusion criteria. Compared with controls, a lower vitamin E level was found in patients with vitiligo (SMD: -0.70, 95% CI: -1.21 to -0.19), psoriasis (SMD: -2.73, 95% CI: -3.57 to -1.18), atopic dermatitis (SMD: -1.08, 95% CI: -1.80 to -0.36) and acne (SMD: -0.67, 95% CI: -1.05 to -0.30).

Conclusions
Our meta-analysis showed that serum vitamin E levels were lower in patients suffering from vitiligo, psoriasis, atopic dermatitis and acne. This study highlights the need to evaluate vitamin E status to improve its level in patients with skin diseases.
Health and well-being of university students before and during COVID-19 pandemic: A gender comparison
Authors: Gestsdottir Sunna , Gisladottir Thordis , Stefansdottir Runa , Johannsson Erlingur , Jakobsdottir Greta , Rognvaldsdottir Vaka 
Published: December 2021

Objective
COVID-19 has affected people’s health in various ways. University students are a particularly sensitive group for mental and physical health issues. The aim of this study was to assess and compare the mental and physical health of male and female first-year university students during and before COVID-19.

Method
Total of 115 first-year university students (54% male) answered questions about mental and physical health. The students were asked to estimate their physical activity, sedentary behavior, loneliness, stress, and sleep quality during COVID-19 opposed to before the pandemic.

Result
Males had fewer symptoms of anxiety and depression, and their self-esteem was higher than females (p<0.05). Over 50% of both genders estimated their mental health to be worse than before COVID-19. Larger proportion of males (69%) compared to females (38%) estimated that their physical health had worsened than before the pandemic. Larger proportion of females (38%) than males (14%) experience increased loneliness and stress (68% vs. 48%). Over 70% of both genders estimated increased sedentary behavior than before the pandemic, and larger proportion of males (76%), compared to females (56%), estimated that they were less physically active than before COVID-19. About 50% of participants estimated their sleep quality was worse than before COVID-19.

Conclusion
University students estimated their mental and physical health to have deteriorated during the pandemic. Therefore, it is important that the school and healthcare systems assist students in unwinding these negative health and lifestyle changes that have accompanied the pandemic.
The development of the International Classification of Functioning, Disability and Health Core Sets for deafblindness: A study protocol
Authors: Paramasivam Abinethaa , Jaiswal Atul , Minhas Renu , Holzhey Peter , Keyes Karen , Lopez Ricard , Wittich Walter 
Published: December 2021

Background
Individuals with deafblindness experience a combination of hearing and vision impairments. The World Health Organization has developed a global framework referred to as the International Classification of Functioning, Disability and Health (ICF) to describe health and functioning. From the full ICF classification, a selection of categories, referred to as ICF Core Sets, provide users with a tool to describe functioning and disability in specific health conditions. There has been no ICF Core Set created for deafblindness. Given that core sets are instrumental in improving clinical practice, research, and service delivery, the aim of this study is to develop an ICF Core Set for deafblindness.

Methods
As part of the preparatory phase in the ICF Core Set development, there are four studies that will be conducted. This includes the [1] systematic literature review that examines the researcher’s perspective, [2] qualitative study focusing on the individuals with deafblindness experience, [3] experts survey that looks at health professional’s perspective, and [4] empirical study that examines the clinical perspective. The studies will be conducted using the principles outlined by the ICF Research Branch for the development of ICF Core Sets. The systematic literature review protocol was submitted for registration on PROSPERO CRD42021247952.

Discussion
An ICF Core Set created for deafblindness will benefit individuals living with deafblindness who are often excluded from social participation, policies, and services. An ICF Core Set for deafblindness will have a significant impact on healthcare professionals, policymakers, researchers, service providers and individuals with deafblindness by facilitating communication among all stakeholder to support the functioning of those with deafblindness.
Association of ABO blood group with COVID-19 severity, acute phase reactants and mortality
Authors: Ishaq Uzma , Malik Asmara , Malik Jahanzeb , Mehmood Asad , Qureshi Azhar , Laique Talha , Zaidi Syed Muhammad Jawad , Javaid Muhammad , Rana Abdul Sattar 
Published: December 2021

Introduction
Coronavirus disease 2019 (COVID-19) is the ongoing pandemic with multitude of manifestations and association of ABO blood group in South-East Asian population needs to be explored.

Methods
It was a retrospective study of patients with COVID-19. Blood group A, B, O, and AB were identified in every participant, irrespective of their RH type and allotted groups 1, 2,3, and 4, respectively. Correlation between blood group and lab parameters was presented as histogram distributed among the four groups. Multivariate regression and logistic regression were used for inferential statistics.

Results
The cohort included 1067 patients: 521 (48.8%) participants had blood group O as the prevalent blood type. Overall, 10.6% COVID-19-related mortality was observed at our center. Mortality was 13.9% in blood group A, 9.5% in group B, 10% in group C, and 10.2% in AB blood group (p = 0.412). IL-6 was elevated in blood group A (median [IQR]: 23.6 [17.5,43.8]), Procalcitonin in blood group B (median [IQR]: 0.54 [0.3,0.7]), D-dimers and CRP in group AB (median [IQR]: 21.5 [9,34]; 24 [9,49], respectively). Regarding severity of COVID-19 disease, no statistical difference was seen between the blood groups. Alteration of the acute phase reactants was not positively associated with any specific blood type.

Conclusion
In conclusion, this investigation did not show significant association of blood groups with severity and of COVID-19 disease and COVID-19-associated mortality.
Left Ventricular Ballooning Patterns in Recurrent Takotsubo Cardiomyopathy: A Systematic Review and Meta-analysis of Reported Cases
Authors: Korabathina Ravi , Porcadas Jamie , Kip Kevin E. , Korabathina Puja R. , Rosenthal Andrew D. , Wassmer Peter 
Published: December 2021

Recurrent takotsubo cardiomyopathy (TTC) and the clinical profiles and outcomes of patients have not been fully evaluated, nor has the effect of left ventricular ballooning pattern. After searching the medical literature for reports of patients with recurrent TTC, we identified 84 articles with 101 case descriptions. We divided the cases into those with only apical left ventricular ballooning patterns at recurrence (typical, n=60), and those with at least one midventricular or basal ballooning pattern (atypical, n=41). We then compared their clinical profiles and outcomes.
The groups were similar in terms of baseline demographic characteristics, presence and types of triggers, use of heart failure medications at TTC recurrence, electrocardiographic changes at presentation, initial left ventricular ejection fractions, timespans between recurrent TTC episodes, and recovery times after each event. However, patients in the atypical group had significantly fewer severe adverse events (cardiogenic shock and cardiac arrest) than did those in the typical group, with an estimated 63% lower odds (adjusted odds ratio=0.37; 95% CI, 0.14–0.97; P=0.039). Survival to hospital discharge was statistically similar but lower in the typical group (n=53; 88.3%) than in the atypical group (n=24; 96%).
Our results suggest that left ventricular ballooning patterns influence clinical outcomes, and that outcomes are more favorable in patients with recurrent TTC who have atypical left ventricular ballooning patterns.
On the forms of accretion of interstellar gas and dust during the formation of single stars and their planetary systems
Authors: Abdulmyanov Tagir 
Published: December 2021

Abstract
In this paper, the mechanisms of star formation and the formation of the equatorial gas and dust disk of protostars are considered. The viscous dynamics of the interstellar matter of gas and dust disks is mainly determined by perturbations of the matter density during gas accretion onto the equilibrium core of the protostar. Using the model of pulsating perturbations of the density of the gas-dust envelope of the protostar and the Navier-Stokes equations, the formulas for the dynamic viscosity of Keplerian and almost Keplerian disks are obtained. It is shown that in the regime of unstable equilibrium of the envelope, accretion of gas onto the core of the protostar begins. In the regime of stable equilibrium, the fragmentation of the gas-dust envelope and the equatorial disk of the protostar occurs. In the ring-shaped fragments of the disk, the process of formation of “embryos” of planets begins and accretion on the “embryos” of the planet also begins.
Typologizing nominal expressions: the noun phrase and beyond
Authors: Louagie Dana , Reinöhl Uta 
Published: December 2021

AbstractThis article develops foundations for a new typology of nominal expressions. Despite the significant diversity attested in languages around the world, a view traditionally and sometimes still found holds that languages either have ‘classic’, rigidly structured noun phrases (NPs) or lack them. A simple dichotomy, however, does not adequately represent the significant language-internal and crosslinguistic diversity of forms and functions of nominal expressions. While many linguists may not in fact think in such binary terms, a comprehensive typology is still wanting. This article offers foundations towards such a typology, with a particular emphasis on language-internal diversity. This diversity within languages has received little attention in previous studies, even while it reveals much about the actual complexity in the nominal domain. Besides surveying structural types and their motivating factors across as well as within languages from around the world, this article approaches nominal expressions also from a variety of other perspectives to enrich our understanding of them. This includes approaching nominal expressions from the perspective of word class systems as well as diachronically. We round off the article by looking at the impact of orality-literacy dimensions and communicative modes.
Corrosion behavior of particle reinforced aluminum composites
Authors: Karabulut Hasan , Karacif Kubilay , Çıtak Ramazan , Çinici Hanifi 
Published: December 2021

Abstract
In the study, the corrosion behavior of aluminum matrix composites reinforced with boron carbide (B4C), silicon carbide (SiC) and alumina (Al2O3) were investigated in saltwater (3.5 % NaCl). Composite materials were produced by powder metallurgy. For composite materials production, various reinforcement and aluminum powders were mixed by mechanical alloying for 4 and 10 hours. After mechanical alloying, mixed powders were compacted under 700 MPa pressure and sintered at 600 °C. Electrochemical corrosion tests were applied on specimens in the saltwater solution using potentiodynamic methods. According to the results of the investigation, the best corrosion resistance was obtained by aluminum/B4C and the lowest by aluminum/Al2O3 composites.
Effect of steel forming on vehicle side impact behavior
Authors: Doruk Emre 
Published: December 2021

Abstract
Despite the seemingly daily development of high-strength new generation steel sheets, steel sheets still remain the most important engineering material used in a vehicle body. These steel parts in a vehicle body, meant to absorb energy during impact, are generally produced by steel forming methods. These steel forming operations may contain processes such as deep drawing, bending, cutting, spring back, spinning. According to the production conditions and type of processes used during the production of sheet metal parts, thinning, thickening, plastic deformation, folding, tearing and wrinkling may occur. In order to achieve more reliable impact simulations, these effects in the forming process should be conferred on impact analysis. Within the scope of this study, an analysis of the critical parts in steel forming that absorb the most energy during the side impact was conducted – first for vehicles. In a subsequent impact analysis, the effects of changes (thickness distribution, residual stress, plastic deformation, etc.) during steel forming were examined.
Determination of plastic deformation rate after solid particle erosion in ductile materials
Authors: Erdoğan Aygen Ahsen , Feyzullahoğlu Erol , Fidan Sinan , Sinmazçelik Tamer 
Published: December 2021

Abstract
AA6082-T6 aluminium alloy is a candidate material, specifically in aviation applications, which could be exposed to solid particle erosion. Solid particle erosion occurs due to repetitive high-speed impact of erodent particles on a target material. Every individual impingement of the erodent particle results in elastic/plastic deformations and material removal from the target material. In this study, solid particle erosion investigations were carried out under 1.5 and 3 bar with 60 and 120 mesh alumina particles. Both erosion rates and worn volumes of the samples were calculated and measured. Also, the authors present the plastic deformation rate in this study as a proportion of the actual (measured) worn volume to the equivalent volume of the mass loss. In addition, the average surface roughness of the samples were investigated, which is another parameter for understanding the effect of plastic deformation on surface properties during particle erosion.
Hot press sintering effects and wear resistance of the Al-B4C composite coatings of an AA-2024 alloy
Authors: Ozay Cetin , Karlidag Omer Etem 
Published: December 2021

Abstract
In this study, the surface of AA-2024 alloy substrate was coated with an Al-B4C reinforced composite using hot press sintering. Al and B4C powders were synthesized by mechanical alloying. To this end, four samples were prepared. As a reference sample, AA-2024 substrate was coated with pure Al powder under 110 MPa pressure. In the other samples, the AA-2024 substrate was coated with metal matrix composites (MMCs) contained in Al-5 wt.-% B4C at 90, 110 and 130 MPa. The microstructure of the transition zone formed between the AA-2024 substrate and the coating layer of the coated samples, the microstructure of the Al/B4C MMCs coating, the macro hardness, the linear reciprocating and forth wear resistance of the coating layer were investigated. In addition, an optical microscope (OM), scanning electro microscope (SEM) images and EDS analysis of the microstructure were used. It was observed that the B4C powders were homogeneously distributed in the Al matrix in the microstructure of the coating layer. It was also found that the gaps between the grains in the microstructure of the coating layer and their size decreased with an increase in pressing pressure. Accordingly, it was concluded that macro hardness increased and weight loss decreased.
Crystal structure of (4′E)-6′-(diethylamino)-2-[(E)-[(pyren-1-yl)methylidene]amino]-4′-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}-1′,2,2′,3,3′,4′-hexahydrospiro[isoindole-1,9′-xanthene]-3-one, C54H48N4O2
Authors: Wu Jinping , Li Kaihao , Lan Hairong , Chu Yixin 
Published: December 2021

Abstract
C54H48N4O2, triclinic,

P

1
‾

$P\overline{1}$

(no. 2), a = 11.1883(5) Å, b = 13.5364(5) Å, c = 14.3412(5) Å, α = 105.885(3)°, β = 97.710(3)°, γ = 94.126(3)°, Z = 2, V = 2056.64(14) Å3, R

gt
(F) = 0.0685, wR

ref
(F
2) = 0.1606, T = 293(2) K.
Response of biomass, grain production, and sugar content of four sorghum plant varieties (Sorghum bicolor (L.) Moench) to different plant densities
Authors: Lestari Reni , Tyas Kartika Ning , Rachmadiyanto Arief N. , Magandhi Mahat , Primananda Enggal , Husaini Iin Pertiwi A. , Kobayashi Masaru 
Published: December 2021

Abstract
Sorghum (Sorghum bicolor (L.) Moench) is a potential plant for food, livestock feed, biofuel, sugar, alcohol, and other bioindustry products. Sorghum could be adaptable to grow and expand in marginal areas of the world. Varieties of sorghum have their specific morpho-agronomic characters. It would be significant to compare the performance of multiple sorghum varieties to identify a suitable one for the intended use. The increase in biomass plant production could be caused by cultivation factors, such as an increased planting density. This study aims to determine the response of four different sorghum varieties to the treatment of the plant density on the biomass, grain production, and sugar content of stem juice. This research was conducted using two factors: sorghum variety (“Super 1,” “Keler,” “Lepeng,” and “Rio”) and the plant density (two, four, and six plants per hole or 106,667; 213,333; and 320,000 plants ha−1, respectively). The results of the study showed that all four sorghum varieties tested could be used as biomass resources. The highest plant dry biomass was gained from six plants per hole with 44.0 t ha–1, whereas the lowest one was two plants per hole with 30.4 t ha–1. “Super 1” was a superior variety due to the significant highest sugar content of the stem juice (13.9°Brix) and grain production. “Lepeng” variety was the lowest in both sugar content (8°Brix) and grain production, whereas “Keler” and “Rio” varieties contained sugar in between 8.5 and 10.8°Brix of the stem juice.
Comparative Studies on Normal and Pulsed Cold Metal Transfer Welding of Aerospace Grade Aluminum Alloy 2024
Authors: Sadasivam Prakash , Jerome S. , Sathishkumar M. , Manikandan M. 
Published: December 2021

Abstract
Aluminum alloy 2024 (AA2024) sheets are mostly used in the fuselage and wings of the aircraft and structural applications; it is because of better fatigue resistance and high strength. The joining of AA2024 through gas metal arc welding (high heat input) is complicated because of hot cracking (solidification cracking), softening of the heat-affected zone (HAZ), and formation of porosity. However, these problems could be minimized by employing cold metal transfer (CMT) (low heat input) welding. The ultimate aim of the present research is to compare the metallurgical integrity and mechanical properties of the butt-welded AA2024 through normal CMT (N-CMT) and pulsed mode CMT (P-CMT) methods. The fine-grain structure observed in the P-CMT contributed better mechanical properties compared to N-CMT. The segregations of magnesium, silicon, and copper have revealed the intermetallic compounds such as aluminum-copper (2:1), Al2CuMg, magnesium silicide, and tetracopper silicide. This results in an intergranular fracture of both N-CMT and P-CMT joints. Besides, P-CMT exhibited a higher ultimate tensile strength and % elongation than the N-CMT. Also, the joint efficiencies of N-CMT and P-CMT were 64 % and 68 %, respectively. Furthermore, the hardness value in HAZ of N-CMT (93 HV) was inferior to P-CMT (126 HV). Hence, P-CMT is recommended for joining AA2024 compared to N-CMT.
Experience in creation of database (registry) of patients with posttraumatic cicatrical biliary strictures. First results
Authors: Kulezneva Yu. V. , Kurmanseitova L. I. , Patrushev I. V. , Efanov M. G. , Tsvirkun V. V. , Melekhina O. V. , Shapovalyants S. G. , Fedorov E. D. , Budzinsky S. A. , Shcheglov V. V. , Belyakov R. F. , Petrovsky A. N. , Popov A. Yu. , Sidorenko A. B. , Bagmet N. N. , Trifonov S. A. , Sutyagin A. A. , Gadaev Sh. Sh. , Konysov M. N. , Khisteva K. N. , Chitadze A. A. , Musatov A. B. 
Published: December 2021

Aim. To demonstrate the first results of the work on database created to assess long-term results of treatment of patients with posttraumatic biliary strictures and to develop a unified approach to the management of these patients.Materials and methods. “The register of patients with post-traumatic strictures of the bile ducts in Russia and the CIS countries” was created in 2016. It is a software for a computer that provides the opportunity for detailed registration and data analysis of a large number of patients.Results. From 2016 to 2021, the data of 132 patients were entered into the register. Long-term results were traced in 49 (60.5%) patients with the minimum and maximum follow-up periods of 3 and 44 months.Conclusion. The first registry results demonstrate its capabilities in generalization and analysis of treatment data for the patients with cicatrical posttraumatic biliary strictures. It also showed the necessity for wider participation of different specialists in work of database.
Clinical and pathogenetic aspects of the complications after surgical treatment of hepatic echinococcosis
Authors: Nazyrov F. G. , Babadjanov A. Kh. , Yakubov F. R. 
Published: December 2021

Aim. To identify factors influencing effectiveness of surgical approaches in hepatic echinococcosis, depending on the location, size and stage of development of the cyst.Material and methods. From 2015 to 2017 the experience of surgical treatment of 98 patients with liver echinococcosis who underwent percutaneous (PAIR – 23 and PEVAC – 29 patients) and laparoscopic (46 patients) interventions was considered.Results. After the PAIR, a complication was noted in 1 (16.7%) case of isolated use with a CE3 cyst. Various complications were noted in 3 (60%) cases with a cyst puncture of more than 4 cm, and in 2 of them with CE2 and CE3. The average time for evacuating the cysts contents when performing the PEVAC technique was 5 days. Hemorrhagic fluid in drainage was noted in 6.9% of cases, biliary fistula – in 13.8%. Accumulation of fluid and suppuration in the residual cavity were identified in 34.5%. Taking into account the size of the cysts, the complication rate after PEVAC was 9.1% for cysts ≤6 cm vs 50% for cysts >6 cm. Various difficulties with manipulations during laparoscopic echinococcectomy were noted more often with CE2–4. So, difficulties with aspiration or removal of cyst contents more often arose with CE4. The incidence of complications after drainage removal was 17.9%, of which fluid accumulation was in 14.3% and residual cavity suppuration in 3.6% of cases.Conclusion. The US criteria, main indications and tactical and technical aspects for performing PAIR and PEVAC methods, as well as for performing laparoscopic echinococcectomy, and criteria for assessing the required volume of percytectomy for an adequate abdominalization of fibrous capsule have been clarified.